Dwyer Instrumentation for Water: Pressure Transmitters, Stainless Steel Pressure Gage, Electric and Pneumatic Ball Valves, Rotary Actuators, Pump Controller, Flowmeters, Switches and Level and Temperature Sensors
About Dwyer Instruments
Dwyer Instruments Since the company was founded in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control. New applications are discovered daily through a cooperative effort between Dwyer and its customers. It has been these relationships with our customers that allow us to continue to develop market demand products and further our success from leading established brand names such as the Magnehelic® pressure gages, Photohelic® switch/gages, Rate Master® flowmeters, and Hi-Flow® valves. In addition to new product development, Dwyer has added to its success through several acquisitions and has achieved additional market recognition. Respected names such as Mercoid Controls, Love Controls, W.E. Anderson and Proximity Controls have created new markets and further build on the solid reputation that Dwyer has and continues to sustain.Our ability to successfully diversify demonstrates Dwyer's managed approach to the marketplace. This approach continues to maintain stability of the company, therefore providing a basis for positioning ourselves as a leader in providing knowledgeable, prompt, and courteous customer service. As our customer, prospect, or potential employee, we always want to hear from you. Please feel welcome to contact us anytime. Featured Products Series 608 Differential Pressure TransmitterMonitor Very Low Differential Pressures with Intrinsically Safe Transmitter Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its NEW Series 608 Differential Pressure Transmitter. The Series 608 is an FM approved, intrinsically-safe transmitter that provides an accurate solution when monitoring very low differential pressures in some of the toughest environments. The ultra-thin silicone diaphragm can detect down to one micron of deflection, while withstanding up to 100 psig (6.89 bar) of static pressure. The Series 608 features a standard 2-wire, 4 to 20 mA output and rugged NEMA 4X stainless steel housing. Full scale accuracies of 0.25% and 0.5% are available on ranges as low as 0 to 0.1`` (0-2.5 mm) w.c. up to 0 to 25`` (0-634.4 mm) w.c including compound ranges. This robust transmitter design would be ideal in pharmaceutical, process plant, and other hazardous location applications. Series MPC Jr. Pump ControllerFeature-Packed New Pump Controller With Pump Alternation Control and monitor your pumps operation with the NEW Series MPC Junior Pump Controller (MPC Jr.) from the Mercoid division of Dwyer Instruments, Inc. The Series MPC Jr. Pump Controller provides one or two pump control with built-in alternation; process input retransmission; high and low alarm contacts in a standard 1/4 DIN package. Units feature additional analog outputs that can be used with external pump run-time meters. Many features are combined into the Series MPC Jr., eliminating many components in pump control systems – process indication in any units, pump run indication lights, and alarm indication lights are all part of the MPC Jr. The controller is designed for use with almost any style level transmitter such as Mercoid’s Series PBLT or SBLT Submersible Level Transmitters and includes an integral 24 VDC transmitter power supply. Front face is weatherproof for outdoor mounting in a panel located at the pump site. Series RH Humidity or Humidity/Temperature Transmitter for Demanding Applications Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its New Series RH Transmitter. The new Series RH Humidity or Humidity/Temperature Transmitter provides a stable, repeatable, and accurate means of measuring humidity only or humidity and temperature in the harshest of environments. The polymer capacitance sensor is not affected by condensation, fog, high humidity, or contaminants. The state of the art sensor is designed for years of calibration-free service. The Series RH is a two-wire transmitter with a 4-20 mA loop powered output. The humidity/temperature version provides dual 4-20 mA output signals with an accuracy of ±2% RH and ±0.9°F @ 72°F (±0.3°C @ 25°C). Series BFV Butterfly ValvesLow Cost Manually Operated Butterfly Valves Eliminates Installation Headaches In the industrial world, valve installation problems can stall operations for days. The NEW Series BFV Butterfly Valves by Dwyer Instruments are designed to keep production running smoothly from day one. The cartridge seat design alleviates installation difficulties associated with the commonly used ``dove tail`` seat design, while providing years of maintenance-free service. The choice of EPDM or PTFE liners and the standard 316 SS stem offer wide chemical compatibility, while the hand lever operator allows for complete manual control. With a maximum temperature up to 300ºF (149ºC) and pressure up to 225 psi (15.5 bar), the Series BFV valves are consistently the better choice for on-off or throttling services. The Series BFV Butterfly Valves are ahead of their class in both price and value.
Since the company was founded in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control. New applications are discovered daily through a cooperative effort between Dwyer and its customers. It has been these relationships with our customers that allow us to continue to develop market demand products and further our success from leading established brand names such as the Magnehelic® pressure gages, Photohelic® switch/gages, Rate Master® flowmeters, and Hi-Flow® valves. In addition to new product development, Dwyer has added to its success through several acquisitions and has achieved additional market recognition. Respected names such as Mercoid Controls, Love Controls, W.E. Anderson and Proximity Controls have created new markets and further build on the solid reputation that Dwyer has and continues to sustain.Our ability to successfully diversify demonstrates Dwyer's managed approach to the marketplace. This approach continues to maintain stability of the company, therefore providing a basis for positioning ourselves as a leader in providing knowledgeable, prompt, and courteous customer service. As our customer, prospect, or potential employee, we always want to hear from you. Please feel welcome to contact us anytime.
Series 608 Differential Pressure TransmitterMonitor Very Low Differential Pressures with Intrinsically Safe Transmitter
Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its NEW Series 608 Differential Pressure Transmitter.
The Series 608 is an FM approved, intrinsically-safe transmitter that provides an accurate solution when monitoring very low differential pressures in some of the toughest environments.
The ultra-thin silicone diaphragm can detect down to one micron of deflection, while withstanding up to 100 psig (6.89 bar) of static pressure. The Series 608 features a standard 2-wire, 4 to 20 mA output and rugged NEMA 4X stainless steel housing. Full scale accuracies of 0.25% and 0.5% are available on ranges as low as 0 to 0.1`` (0-2.5 mm) w.c. up to 0 to 25`` (0-634.4 mm) w.c including compound ranges. This robust transmitter design would be ideal in pharmaceutical, process plant, and other hazardous location applications.
Series MPC Jr. Pump ControllerFeature-Packed New Pump Controller With Pump Alternation
Control and monitor your pumps operation with the NEW Series MPC Junior Pump Controller (MPC Jr.) from the Mercoid division of Dwyer Instruments, Inc.
The Series MPC Jr. Pump Controller provides one or two pump control with built-in alternation; process input retransmission; high and low alarm contacts in a standard 1/4 DIN package. Units feature additional analog outputs that can be used with external pump run-time meters.
Many features are combined into the Series MPC Jr., eliminating many components in pump control systems – process indication in any units, pump run indication lights, and alarm indication lights are all part of the MPC Jr. The controller is designed for use with almost any style level transmitter such as Mercoid’s Series PBLT or SBLT Submersible Level Transmitters and includes an integral 24 VDC transmitter power supply. Front face is weatherproof for outdoor mounting in a panel located at the pump site.
Series RH Humidity or Humidity/Temperature Transmitter for Demanding Applications
Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its New Series RH Transmitter.
The new Series RH Humidity or Humidity/Temperature Transmitter provides a stable, repeatable, and accurate means of measuring humidity only or humidity and temperature in the harshest of environments. The polymer capacitance sensor is not affected by condensation, fog, high humidity, or contaminants. The state of the art sensor is designed for years of calibration-free service.
The Series RH is a two-wire transmitter with a 4-20 mA loop powered output. The humidity/temperature version provides dual 4-20 mA output signals with an accuracy of ±2% RH and ±0.9°F @ 72°F (±0.3°C @ 25°C).
Series BFV Butterfly ValvesLow Cost Manually Operated Butterfly Valves Eliminates Installation Headaches
In the industrial world, valve installation problems can stall operations for days. The NEW Series BFV Butterfly Valves by Dwyer Instruments are designed to keep production running smoothly from day one.
The cartridge seat design alleviates installation difficulties associated with the commonly used ``dove tail`` seat design, while providing years of maintenance-free service. The choice of EPDM or PTFE liners and the standard 316 SS stem offer wide chemical compatibility, while the hand lever operator allows for complete manual control. With a maximum temperature up to 300ºF (149ºC) and pressure up to 225 psi (15.5 bar), the Series BFV valves are consistently the better choice for on-off or throttling services. The Series BFV Butterfly Valves are ahead of their class in both price and value.
Handheld CO Analyzer, Pneumatic Positioners, Solenoid Pilot and Ball Valves
Series 1205A-5 Handheld CO AnalyzerCompact, Economical and Easy-To-Use Handheld CO Analyzer Excellent for detecting and monitoring colorless, odorless, toxic carbon monoxide, Dwyer Instruments, Inc. is pleased to announce the release of the NEW Model 1205A-5 Handheld CO Analyzer. The Model 1205A-5 is a cost-effective tool for checking ambient CO levels, locating leaks along flue pipes, measuring CO concentration in flue gas from furnaces or residential combustion appliances. The portable, battery operated unit measure CO from 0-2000 ppm and accepts any type K thermocouple for temperature measurements. The programming function allows the user to define engineering units, set date and times, select language, and select measurements displayed on the two-line alpha-numeric LCD. Each Model 1205A-5 features auto zero, battery indication, infrared printer compatibility, and a backlit display for low light areas. Series 265 PRECISOR® II Pneumatic and Electro-Pneumatic PositionersFast-Acting, Low Cost, & Dependable Positioners for Pneumatic Rotary Actuators A stable process is at the root of any finely tuned industrial system. The NEW Series 265 PRECISOR® II Pneumatic and Electro-Pneumatic Positioners, from Dwyer Instruments, Inc., provide steady and dependable valve control when combined with any of Dwyer’s existing rotary valve actuators. In this year of match-making, the Series 265 and Series BV Automated Ball Valves are a perfect pair. The Series 265’s rugged, durable design can withstand the harshest of environments while still maintaining an accurate, constant position of the control element. With affordability as important as reliability, these fast-acting, precision-calibrated instruments offer the ultimate in stable process control. Standard features include easy transformation from Direct Action to Reverse Action, and low air consumption to keep overall costs at a minimum. Series BV3HL Three-Piece Sanitary Ball ValveNEW Sanitary Hand Lever Ball Valve Ideal for High Purity Applications Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its NEW Series BV3HL-3A Hand Lever Ball Valve. The Series BV3HL-3A is perfect for the food and beverage, pharmaceutical, and biotech industries. Units are designed to meet 3A standards and feature 15RA grit internal polish and polished clamp end connections; the valve incorporates PTFE cavity filler to reduce the threat of product entrapment. The Series BV3HL-3A ball valve is constructed of 316 SS and Teflon®, making it perfect for corrosive and high purity applications. Integral ISO 5211 mounting pad makes field automation with electric or pneumatic actuators easy. Three-piece design allows the central portion to swing out for maintenance, while leaving the ends clamped into the line. Pressure ratings are to 1000 psig (69 bar) and temperature ratings are -40 to 450°F (-40 to 232°C) for wide application usage. The Series BV3HL-3A is available from 1/2`` to 4`` sizes. Series PV Solenoid Pilot ValveSolenoid Pilot Valves for Use with Angle Seat Valves Versatile, Simple, and Economical In an ever-changing landscape of valve and valve accessories, simple and effective solutions are at a premium. The NEW Series PV three-way normally closed electro-pneumatic solenoid pilot valves by Dwyer instruments, Inc., are designed with these qualities in mind. When matched with the new Dwyer Series SAV Angle Seat Valves, supply pressure control is as easy as the flick of a switch. These low cost, durable pilot valves feature fully reversible DIN connections to keep electrical wiring hassle-free, while the direct mounting banjo connection eliminates common installation problems. Units are manufactured standard with a manual override, and have a wide variety of coil supply voltages available. 120VAC models will be stocked, with other voltages are available upon request. W.E. Anderson is a division of Dwyer Instruments, Inc. which produces a broad range of measuring and control instruments for pressure, temperature, level and flow applications
Series 1205A-5 Handheld CO AnalyzerCompact, Economical and Easy-To-Use Handheld CO Analyzer
Excellent for detecting and monitoring colorless, odorless, toxic carbon monoxide, Dwyer Instruments, Inc. is pleased to announce the release of the NEW Model 1205A-5 Handheld CO Analyzer.
The Model 1205A-5 is a cost-effective tool for checking ambient CO levels, locating leaks along flue pipes, measuring CO concentration in flue gas from furnaces or residential combustion appliances.
The portable, battery operated unit measure CO from 0-2000 ppm and accepts any type K thermocouple for temperature measurements. The programming function allows the user to define engineering units, set date and times, select language, and select measurements displayed on the two-line alpha-numeric LCD.
Each Model 1205A-5 features auto zero, battery indication, infrared printer compatibility, and a backlit display for low light areas.
Series 265 PRECISOR® II Pneumatic and Electro-Pneumatic PositionersFast-Acting, Low Cost, & Dependable Positioners for Pneumatic Rotary Actuators
A stable process is at the root of any finely tuned industrial system. The NEW Series 265 PRECISOR® II Pneumatic and Electro-Pneumatic Positioners, from Dwyer Instruments, Inc., provide steady and dependable valve control when combined with any of Dwyer’s existing rotary valve actuators. In this year of match-making, the Series 265 and Series BV Automated Ball Valves are a perfect pair.
The Series 265’s rugged, durable design can withstand the harshest of environments while still maintaining an accurate, constant position of the control element. With affordability as important as reliability, these fast-acting, precision-calibrated instruments offer the ultimate in stable process control.
Standard features include easy transformation from Direct Action to Reverse Action, and low air consumption to keep overall costs at a minimum.
Series BV3HL Three-Piece Sanitary Ball ValveNEW Sanitary Hand Lever Ball Valve Ideal for High Purity Applications
Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its NEW Series BV3HL-3A Hand Lever Ball Valve.
The Series BV3HL-3A is perfect for the food and beverage, pharmaceutical, and biotech industries. Units are designed to meet 3A standards and feature 15RA grit internal polish and polished clamp end connections; the valve incorporates PTFE cavity filler to reduce the threat of product entrapment.
The Series BV3HL-3A ball valve is constructed of 316 SS and Teflon®, making it perfect for corrosive and high purity applications. Integral ISO 5211 mounting pad makes field automation with electric or pneumatic actuators easy. Three-piece design allows the central portion to swing out for maintenance, while leaving the ends clamped into the line.
Pressure ratings are to 1000 psig (69 bar) and temperature ratings are -40 to 450°F (-40 to 232°C) for wide application usage. The Series BV3HL-3A is available from 1/2`` to 4`` sizes.
Series PV Solenoid Pilot ValveSolenoid Pilot Valves for Use with Angle Seat Valves Versatile, Simple, and Economical
In an ever-changing landscape of valve and valve accessories, simple and effective solutions are at a premium.
The NEW Series PV three-way normally closed electro-pneumatic solenoid pilot valves by Dwyer instruments, Inc., are designed with these qualities in mind. When matched with the new Dwyer Series SAV Angle Seat Valves, supply pressure control is as easy as the flick of a switch. These low cost, durable pilot valves feature fully reversible DIN connections to keep electrical wiring hassle-free, while the direct mounting banjo connection eliminates common installation problems.
Units are manufactured standard with a manual override, and have a wide variety of coil supply voltages available. 120VAC models will be stocked, with other voltages are available upon request.
W.E. Anderson is a division of Dwyer Instruments, Inc. which produces a broad range of measuring and control instruments for pressure, temperature, level and flow applications
Dual Stage Temperature Switch, Transmitters LED Display and Digital Pressure Gage
Series TSS Dual Stage Temperature Switch LOVE Introduces NEW Series TSS Dual Stage Temperature Switch LOVE CONTROLS, a Division of Dwyer Instruments, Inc., Michigan City, Indiana, introduces the new Series TSS Dual Stage Temperature Switch. This microprocessor-based switch is an economical alternative for many heating, cooling, and static defrost timing applications. The unit is designed to accept up to two inputs with independent 8 Amp relay output for dual stage control. The Series TSS also features a 30 mA alarm output for external buzzer activation. Units offer a temperature range of –58° to 302°F (-50 to 150°C) with an accuracy of ±0.5% or better. The Series TSS offers 34 programmable parameters to customize control functions. The temperature switch features a 3-digit red display, error and alarm messaging, and password protection. The temperature switch is an economical and reliable device which can be used in many applications including wine cellars, ovens, refrigeration cases, coolers, chillers, meat product dryers, and many more. LOVE CONTROLS produces a wide variety of controls. LOVE CONTROLS products are designed and manufactured to high quality and reliability standards and backed by solid warranties and years of practical experience. Series 626/628 & 629 Pressure Transmitters with LED DisplayNEW Bright Display for Industrial Pressure Transmitters Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its new LED Display for its Series 626 Single Pressure & Series 629 Differential Pressure Transmitters. This new package provides a compact transmitter with integral display that reduces installation costs by alleviating the need to purchase, wire and mount a separate display to read a transmitter’s output. The 4.5 digit, 1/2 inch red LED display is easily visible in various lighting or dark locations and allows for the operator to obtain a quick local readout of the process. Dwyer Instruments, Inc. produces a broad range of measuring and control instruments for pressure, temperature, level, flow, and many other related applications. Series DPG-000 Digital Pressure GageGreat Value! New Economical Digital Gage from Dwyer Instruments Dwyer Instruments, Inc., is announcing the release of its latest digital gage, the DPG-000. The Series DPG-000 builds off the popular Dwyer DPG-100 series digital gage but contains a 0.5% full scale accuracy sensor. The battery powered DPG-000 comes with a 4-digit LCD display, reducing inaccurate readings by eliminating parallax error commonly produced with analog gages. Save time--only take one reading. Zero moving parts enable the user to obtain an accurate reading, quickly and conveniently. A 4-button keypad allows easy access of functions—no need to work through complex menus or difficult key combinations. Along with the digital gage’s 0.5% accuracy sensor, functions include backlight, retrievable peak and valley values, zero the display and conversion of engineering pressure units. The Series DPG-000 can be used in a variety of applications with wetted parts of 316 and 316L stainless steel and comes in an industrial NEMA 4X (IP66) housing. Ranges from vacuum to 5000 psig are in stock.
Series TSS Dual Stage Temperature Switch
LOVE Introduces NEW Series TSS Dual Stage Temperature Switch
LOVE CONTROLS, a Division of Dwyer Instruments, Inc., Michigan City, Indiana, introduces the new Series TSS Dual Stage Temperature Switch. This microprocessor-based switch is an economical alternative for many heating, cooling, and static defrost timing applications. The unit is designed to accept up to two inputs with independent 8 Amp relay output for dual stage control. The Series TSS also features a 30 mA alarm output for external buzzer activation. Units offer a temperature range of –58° to 302°F (-50 to 150°C) with an accuracy of ±0.5% or better.
The Series TSS offers 34 programmable parameters to customize control functions. The temperature switch features a 3-digit red display, error and alarm messaging, and password protection.
The temperature switch is an economical and reliable device which can be used in many applications including wine cellars, ovens, refrigeration cases, coolers, chillers, meat product dryers, and many more.
LOVE CONTROLS produces a wide variety of controls. LOVE CONTROLS products are designed and manufactured to high quality and reliability standards and backed by solid warranties and years of practical experience.
Series 626/628 & 629 Pressure Transmitters with LED DisplayNEW Bright Display for Industrial Pressure Transmitters
Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its new LED Display for its Series 626 Single Pressure & Series 629 Differential Pressure Transmitters.
This new package provides a compact transmitter with integral display that reduces installation costs by alleviating the need to purchase, wire and mount a separate display to read a transmitter’s output.
The 4.5 digit, 1/2 inch red LED display is easily visible in various lighting or dark locations and allows for the operator to obtain a quick local readout of the process.
Dwyer Instruments, Inc. produces a broad range of measuring and control instruments for pressure, temperature, level, flow, and many other related applications.
Series DPG-000 Digital Pressure GageGreat Value! New Economical Digital Gage from Dwyer Instruments Dwyer Instruments, Inc., is announcing the release of its latest digital gage, the DPG-000. The Series DPG-000 builds off the popular Dwyer DPG-100 series digital gage but contains a 0.5% full scale accuracy sensor. The battery powered DPG-000 comes with a 4-digit LCD display, reducing inaccurate readings by eliminating parallax error commonly produced with analog gages. Save time--only take one reading. Zero moving parts enable the user to obtain an accurate reading, quickly and conveniently.
A 4-button keypad allows easy access of functions—no need to work through complex menus or difficult key combinations. Along with the digital gage’s 0.5% accuracy sensor, functions include backlight, retrievable peak and valley values, zero the display and conversion of engineering pressure units.
The Series DPG-000 can be used in a variety of applications with wetted parts of 316 and 316L stainless steel and comes in an industrial NEMA 4X (IP66) housing. Ranges from vacuum to 5000 psig are in stock.
Flanged Ball Valves, Sight Flow Indicator and Pressure Gage with Diaphragm Seal
Series BV2 Electric and Pneumatic Flanged Ball ValvesNEW – Low Cost Flanged Ball Valve Package New Series BV2 Electric and Pneumatic Flanged Ball Valves offer ANSI 150# flanged ends for easy installation. 1/2`` through 4`` sizes are standard for great flow rates with minimal pressure drop. The valve features a blowout-proof stem for added safety, reinforced Teflon seats and seals for longer life, and a 316SS ball for better performance. Actuators are direct mounted creating a compact assembly for tight spaces. Double o-ring stem seals assure leak free operation. The BV2 Series is an economical automated valve package with either an electric or pneumatic actuator. Electric actuated models are weatherproof, NEMA 4, powered by standard 115 VAC supply, and are available in either two-position or proportional control. Two-position actuators use the 115 VAC input to drive the valve open or closed, while the modulating actuator accepts a 4 to 20 mA input for infinite valve positioning. Series SFI-100T Sight Flow IndicatorLow Cost Sight Flow Indicator/Transmitter - Durable Construction for Demanding Applications The Series SFI-100T Sight Flow Indicator from the W. E. Anderson Division of Dwyer Instruments, Inc. is a low cost, durable paddlewheel style flow indicator with output sensor. Patented flow sensor uses no magnets in the paddlewheel to attract ferrous materials. Construction is of a rugged, solid brass body with tempered glass window that enables viewing of the bright red PBT paddlewheel. Units are constructed of all ultraviolet stabilized materials for outdoor service. The A-711T output sensor has a pulsed VDC output for flow rate and totalization. For added versatility there are two output choices of 5 VDC or a VDC equal to the input power supplied of 8 to 28 VDC. The output is compatible with digital rate meters/totalizers and other electronic systems. The SFI-100T has an excellent pressure rating of 125 psi (8.62 bar), temperature rating of 100°F (93°C), and chemical compatibility. The SFI-100T is compact and weatherproof, and the A-711T output sensor package can be replaced on existing units in the field. Easy maintenance is assured with interior access afforded by the removable front window. Unit is perfect for water purification, laser cooling, water injection, redi-mix concrete trucks, chillers, and other demanding applications. Series 7112B Spirahelic® Pressure Gage with Diaphragm Seal Stainless Steel Diaphragm Seal for Spirahelic® Pressure Gage Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its SERIES 7112B SPIRAHELIC® PRESSURE GAGE WITH DIAPHRAGM SEAL. Due to the small volume of the triple wound Bourdon tube inside the Spirahelic® gage, a much smaller diaphragm seal may be selected versus a standard ``C`` Bourdon tube gage. This smaller seal is extremely compact, light weight, and more economic than standard diaphragm seals. Diaphragm seals are available with 316L SS wetted parts and are offered on models with pressure ranges up to 1000 psig. An optional 1/4`` NPT flush port is available for applications such as water treatment plants that require a clean-out line to maintain proper gage performance.
Series BV2 Electric and Pneumatic Flanged Ball ValvesNEW – Low Cost Flanged Ball Valve Package New Series BV2 Electric and Pneumatic Flanged Ball Valves offer ANSI 150# flanged ends for easy installation. 1/2`` through 4`` sizes are standard for great flow rates with minimal pressure drop. The valve features a blowout-proof stem for added safety, reinforced Teflon seats and seals for longer life, and a 316SS ball for better performance. Actuators are direct mounted creating a compact assembly for tight spaces. Double o-ring stem seals assure leak free operation.
The BV2 Series is an economical automated valve package with either an electric or pneumatic actuator. Electric actuated models are weatherproof, NEMA 4, powered by standard 115 VAC supply, and are available in either two-position or proportional control. Two-position actuators use the 115 VAC input to drive the valve open or closed, while the modulating actuator accepts a 4 to 20 mA input for infinite valve positioning.
Series SFI-100T Sight Flow IndicatorLow Cost Sight Flow Indicator/Transmitter - Durable Construction for Demanding Applications
The Series SFI-100T Sight Flow Indicator from the W. E. Anderson Division of Dwyer Instruments, Inc. is a low cost, durable paddlewheel style flow indicator with output sensor. Patented flow sensor uses no magnets in the paddlewheel to attract ferrous materials. Construction is of a rugged, solid brass body with tempered glass window that enables viewing of the bright red PBT paddlewheel.
Units are constructed of all ultraviolet stabilized materials for outdoor service. The A-711T output sensor has a pulsed VDC output for flow rate and totalization. For added versatility there are two output choices of 5 VDC or a VDC equal to the input power supplied of 8 to 28 VDC. The output is compatible with digital rate meters/totalizers and other electronic systems.
The SFI-100T has an excellent pressure rating of 125 psi (8.62 bar), temperature rating of 100°F (93°C), and chemical compatibility. The SFI-100T is compact and weatherproof, and the A-711T output sensor package can be replaced on existing units in the field. Easy maintenance is assured with interior access afforded by the removable front window. Unit is perfect for water purification, laser cooling, water injection, redi-mix concrete trucks, chillers, and other demanding applications.
Series 7112B Spirahelic® Pressure Gage with Diaphragm Seal Stainless Steel Diaphragm Seal for Spirahelic® Pressure Gage
Dwyer Instruments, Inc., the preferred source for your complete range of practical and affordable instrumentation, is announcing the release of its SERIES 7112B SPIRAHELIC® PRESSURE GAGE WITH DIAPHRAGM SEAL.
Due to the small volume of the triple wound Bourdon tube inside the Spirahelic® gage, a much smaller diaphragm seal may be selected versus a standard ``C`` Bourdon tube gage. This smaller seal is extremely compact, light weight, and more economic than standard diaphragm seals.
Diaphragm seals are available with 316L SS wetted parts and are offered on models with pressure ranges up to 1000 psig. An optional 1/4`` NPT flush port is available for applications such as water treatment plants that require a clean-out line to maintain proper gage performance.
Pressure Gage Applications - and Ideas
For Magnehelic®, Capsuhelic® and Minihelic® Gages These applications serve only to suggest the wide range of applications served by the versatile Magnehelic®, Capsuhelic® and Minihelic® series of low pressure gages. Although many of the applications obviously solve problems for users of air conditioning, heating and ventilating equipment, a number of others involve monitoring low pressures in pollution control devices, clean rooms, fluidic systems, medical-surgical patient care equipment and similar uses. As a gage to check air filtersGage gives an instant visual indication when filters need servicing. Select a model with range appropriate to the filter manufacturer's recommendation for maximum permissible pressure drop across filter. Install a gage with red pointer flag (an option), to be set at the maximum allowable pressure drop point for air volume being handled. This assures easy reading of the gage, even by relatively inexperienced operators. To sense static pressureFor the most accurate measurement of static pressure in an air stream, use gage connected to a static pressure tip such as Dwyer Model A-301. The next most accurate pick-up is a smooth, burr-free solder connection flush with the inside surface of the duct. Only slightly less accurate is a simple connection such as the Dwyer Model A-307. To measure air velocityConnect a Magnehelic® or Minihelic® gage to pitot tube in the air stream. Or, the simple alternative method pictured above shows a static tap plus a simple tube in center of duct to pick up total pressure. The differential pressure reading on gage is center velocity pressure which may be converted to air velocity. To determine flowIn this set-up, gage measures the pressure drop across a sharp-edged orifice plate. Details regarding available sizes, ranges, installation, and limitations are available from orifice plate manufacturers and from standard handbooks. As an orifice meterMagnehelic® or Minihelic® gages can be used as orifice meters by purging the orifice with air pressure to protect gage from direct contact with fluid or to prevent clogged meter lines. Gage is shown connected to two Dwyer flowmeters with constant differential pressure regulators - one for the low pressure tap line and one for the high pressure side. (Capsuhelic® gage may be used without purge on compatible liquid streams.) Air volume measurementAn elliptical flow nozzle with an egg crate air straightener located upstream provides an accurate, easily constructed air volume measurement system. Air velocity distribution at the point of discharge across the outlet of the nozzle is uniform; static pressure is zero. Consequently, the total pressure upstream from the nozzle is the velocity pressure at the nozzle outlet - and the volume of low is easily calculated. To monitor engine or compressor air filtersGage gives continual reading of air pressure drop across filter and signals need for cleaning or replacement of filter. Gage is installed with negative or low pressure port connected to intake pipe between filter and engine or compressor. A Capsuhelic® gage can be used to monitor pressure drop across the oil filter. For Photohelic® and Capsu-Photohelic® GagesDwyer Photohelic® and Capsu-Photohelic® switch/gages furnish all the advantages of the Magnehelic® gage plus one or two easily set pressure switches with visible set point indicators. The switches provide an electrical signal to operate audio or visual alarms or control motors, fans, valves and other equipment with reliable accuracy. To measure liquid levelUse a Photohelic®, Magnehelic®, or Minihelic® gage in conjunction with a Dwyer flowmeter with constant differential pressure regulator as show. Flowmeter provides constant rate of purge air to dip tube. Changes in liquid level affect head, causing static pressure changes inside tube. These changes are sensed by the gage. This same kind of setup will also detect specific gravity changes in the liquid if level is kept constant. Using a Dwyer Photohelic® pressure switch/gage instead of the Magnehelic® permits both measuring and controlling liquid level plus easily changing the level control settings. To control pressure in air-inflated buildingsPhotohelic® switch/gage senses over-pressure that may extend building, or loss of pressure that may cause collapse, and controls the blower to maintain correct pressure. Gage is easily reset to conserve power - or provide extra pressure to resist strong winds. To control material weightOn paper making or textile machinery, a Photohelic® switch/gage controls weight of material gathered by sensing pressure changes caused by changes in permeability and thickness of the material. For life support or kidney machinesPhotohelic® switch/gage controls pressure on circulating system of machine and alarms in event of too high or low pressure. Monitor air conditioning systemsAdjustments in air flow due to seasonal changes may require resetting the control points on a regular basis. The Photohelic® unit's ability to monitor pressures through the gage portion also permits accumulation of operating data. This is useful in adjusting operation of variable pressure and volume systems and in making system changes when necessary.
For Magnehelic®, Capsuhelic® and Minihelic® Gages
These applications serve only to suggest the wide range of applications served by the versatile Magnehelic®, Capsuhelic® and Minihelic® series of low pressure gages. Although many of the applications obviously solve problems for users of air conditioning, heating and ventilating equipment, a number of others involve monitoring low pressures in pollution control devices, clean rooms, fluidic systems, medical-surgical patient care equipment and similar uses.
As a gage to check air filtersGage gives an instant visual indication when filters need servicing. Select a model with range appropriate to the filter manufacturer's recommendation for maximum permissible pressure drop across filter. Install a gage with red pointer flag (an option), to be set at the maximum allowable pressure drop point for air volume being handled. This assures easy reading of the gage, even by relatively inexperienced operators. To sense static pressureFor the most accurate measurement of static pressure in an air stream, use gage connected to a static pressure tip such as Dwyer Model A-301. The next most accurate pick-up is a smooth, burr-free solder connection flush with the inside surface of the duct. Only slightly less accurate is a simple connection such as the Dwyer Model A-307.
To measure air velocityConnect a Magnehelic® or Minihelic® gage to pitot tube in the air stream. Or, the simple alternative method pictured above shows a static tap plus a simple tube in center of duct to pick up total pressure. The differential pressure reading on gage is center velocity pressure which may be converted to air velocity. To determine flowIn this set-up, gage measures the pressure drop across a sharp-edged orifice plate. Details regarding available sizes, ranges, installation, and limitations are available from orifice plate manufacturers and from standard handbooks.
As an orifice meterMagnehelic® or Minihelic® gages can be used as orifice meters by purging the orifice with air pressure to protect gage from direct contact with fluid or to prevent clogged meter lines. Gage is shown connected to two Dwyer flowmeters with constant differential pressure regulators - one for the low pressure tap line and one for the high pressure side. (Capsuhelic® gage may be used without purge on compatible liquid streams.) Air volume measurementAn elliptical flow nozzle with an egg crate air straightener located upstream provides an accurate, easily constructed air volume measurement system. Air velocity distribution at the point of discharge across the outlet of the nozzle is uniform; static pressure is zero. Consequently, the total pressure upstream from the nozzle is the velocity pressure at the nozzle outlet - and the volume of low is easily calculated.
To monitor engine or compressor air filtersGage gives continual reading of air pressure drop across filter and signals need for cleaning or replacement of filter. Gage is installed with negative or low pressure port connected to intake pipe between filter and engine or compressor. A Capsuhelic® gage can be used to monitor pressure drop across the oil filter.
For Photohelic® and Capsu-Photohelic® GagesDwyer Photohelic® and Capsu-Photohelic® switch/gages furnish all the advantages of the Magnehelic® gage plus one or two easily set pressure switches with visible set point indicators. The switches provide an electrical signal to operate audio or visual alarms or control motors, fans, valves and other equipment with reliable accuracy. To measure liquid levelUse a Photohelic®, Magnehelic®, or Minihelic® gage in conjunction with a Dwyer flowmeter with constant differential pressure regulator as show. Flowmeter provides constant rate of purge air to dip tube. Changes in liquid level affect head, causing static pressure changes inside tube. These changes are sensed by the gage. This same kind of setup will also detect specific gravity changes in the liquid if level is kept constant. Using a Dwyer Photohelic® pressure switch/gage instead of the Magnehelic® permits both measuring and controlling liquid level plus easily changing the level control settings. To control pressure in air-inflated buildingsPhotohelic® switch/gage senses over-pressure that may extend building, or loss of pressure that may cause collapse, and controls the blower to maintain correct pressure. Gage is easily reset to conserve power - or provide extra pressure to resist strong winds.
To control material weightOn paper making or textile machinery, a Photohelic® switch/gage controls weight of material gathered by sensing pressure changes caused by changes in permeability and thickness of the material. For life support or kidney machinesPhotohelic® switch/gage controls pressure on circulating system of machine and alarms in event of too high or low pressure.
Monitor air conditioning systemsAdjustments in air flow due to seasonal changes may require resetting the control points on a regular basis. The Photohelic® unit's ability to monitor pressures through the gage portion also permits accumulation of operating data. This is useful in adjusting operation of variable pressure and volume systems and in making system changes when necessary.
Flowmeters Applications
Typical Applications Flowmeters Flowmeters used to check dry air flow protecting cables.Telephone cables are kept under pressure with dry air for protection against damage due to moisture. The flow of air to each cable is monitored to detect leaks that may develop due to cable damage. Special multi-column Dwyer Visi-Float® flowmeters are widely used in this application. Flowmeter reveals proper suction flow into portable halogen leak detector.A Mini-Master® flowmeter provides a low-cost means of checking that proper suction flow is maintained so that leaks do not go undetected due to obstruction of the probes or failure of the pumping system. Flows of air and gases used in a special furnace are controlled by eleven Rate-Master® flowmeters.This sophisticated conveyor belt furnace is used in manufacturing electronic devices. The flowmeters provide precise adjustment and monitoring of the flows of air and gases into the various portions of the furnace. Special dual-column flowmeter delivers anesthetic.Physicians who use anesthesia in their orifices on an occasional basis require a system that is reliable but small and portable. One such system employs special Dwyer dual-column Visi-Float® flowmeters to meter and monitor precise flows of nitrous oxide and oxygen to the patient. Flowmeters monitor vital purge gas flow to motors, switchgear, instruments.To purge motors, generators, switchgear, and industrial instrument cases, Dwyer flowmeters are installed in the supply line to indicate a flow of air, manufactured inert gas, or nitrogen to these devices. The flowmeters (with valves) allow maintenance personnel to set the flow quickly and recheck anytime to make sure proper flow continues. Water cooling and fuel flow to large engines and compressors monitored by Dwyer flowmeters.By precisely indicating true flow of cooling water to engines, compressors and other machinery, flowmeters permit the operator to adjust the proper flow to save water, increase efficiency, and protect the equipment. Engine fuel flow can be monitored in the same way. Flowmeter controls flow rate of chemical concentrate.When adding a chemical concentrate to a large volume of water or other fluid, you can determine the rate at which the concentrate is being added by using either a Dwyer Rate-Master® or Visi-Float® flowmeters. The concentrate is added on the input side of the pump. This draws the concentrate form its container and also utilizes the mixing action of the pump. Leak testing system uses a Dwyer flowmeter.During testing, the valve is opened and the float will go to the top of the flowmeter bore. However as soon as a unit under test is placed in position, the float will fall to the zero mark if no leakage exists. Midwest sight flow indicator reveals flow or stoppage.In this gravity feed system delivering liquid fertilizer to portable tanks, a Midwest Model 100 sight flow indicator was installed. The operator can see the rotating vanes to check for adequate flow at any time. Dwyer products measure liquid level.A flowmeter in conjunction with a constant differential pressure regulator is used to keep the sensing the line purged of liquid. Changes in liquid level will affect static head. This will affect internal pressure in the sensing line, which can be indicated by a Dwyer Magnehelic® pressure gage. Oxygen concentrator replaces heavy tanks and includes a Dwyer flowmeter for easy adjustment of oxygen flow.An oxygen concentrator delivers oxygen from the surrounding air to those who frequently require oxygen at home. A flow meter with a metering valve is places in the oxygen output line to adjust the flow to the prescribed level. Flowmeters on concrete mixer show flow of special additives.This on-site mixer delivers the exact amount and the proper formulation required for the specific job. Dwyer Rate-Master® flowmeters permit setting the proper admixture flow to add the specified quantities of accelerators, retarders, air-entraining agents, etc. Typical Flow Switch Applications Air flow switch protects preheater from overheating Use of emergency industrial shower actuates Flotect flow switch which sounds alarm to bring help Flotect flow switch protects aircraft de-icing equipment
Typical Applications Flowmeters
Flowmeters used to check dry air flow protecting cables.Telephone cables are kept under pressure with dry air for protection against damage due to moisture. The flow of air to each cable is monitored to detect leaks that may develop due to cable damage. Special multi-column Dwyer Visi-Float® flowmeters are widely used in this application.
Flowmeter reveals proper suction flow into portable halogen leak detector.A Mini-Master® flowmeter provides a low-cost means of checking that proper suction flow is maintained so that leaks do not go undetected due to obstruction of the probes or failure of the pumping system.
Flows of air and gases used in a special furnace are controlled by eleven Rate-Master® flowmeters.This sophisticated conveyor belt furnace is used in manufacturing electronic devices. The flowmeters provide precise adjustment and monitoring of the flows of air and gases into the various portions of the furnace.
Special dual-column flowmeter delivers anesthetic.Physicians who use anesthesia in their orifices on an occasional basis require a system that is reliable but small and portable. One such system employs special Dwyer dual-column Visi-Float® flowmeters to meter and monitor precise flows of nitrous oxide and oxygen to the patient.
Flowmeters monitor vital purge gas flow to motors, switchgear, instruments.To purge motors, generators, switchgear, and industrial instrument cases, Dwyer flowmeters are installed in the supply line to indicate a flow of air, manufactured inert gas, or nitrogen to these devices. The flowmeters (with valves) allow maintenance personnel to set the flow quickly and recheck anytime to make sure proper flow continues.
Water cooling and fuel flow to large engines and compressors monitored by Dwyer flowmeters.By precisely indicating true flow of cooling water to engines, compressors and other machinery, flowmeters permit the operator to adjust the proper flow to save water, increase efficiency, and protect the equipment. Engine fuel flow can be monitored in the same way.
Flowmeter controls flow rate of chemical concentrate.When adding a chemical concentrate to a large volume of water or other fluid, you can determine the rate at which the concentrate is being added by using either a Dwyer Rate-Master® or Visi-Float® flowmeters. The concentrate is added on the input side of the pump. This draws the concentrate form its container and also utilizes the mixing action of the pump.
Leak testing system uses a Dwyer flowmeter.During testing, the valve is opened and the float will go to the top of the flowmeter bore. However as soon as a unit under test is placed in position, the float will fall to the zero mark if no leakage exists.
Midwest sight flow indicator reveals flow or stoppage.In this gravity feed system delivering liquid fertilizer to portable tanks, a Midwest Model 100 sight flow indicator was installed. The operator can see the rotating vanes to check for adequate flow at any time.
Dwyer products measure liquid level.A flowmeter in conjunction with a constant differential pressure regulator is used to keep the sensing the line purged of liquid. Changes in liquid level will affect static head. This will affect internal pressure in the sensing line, which can be indicated by a Dwyer Magnehelic® pressure gage.
Oxygen concentrator replaces heavy tanks and includes a Dwyer flowmeter for easy adjustment of oxygen flow.An oxygen concentrator delivers oxygen from the surrounding air to those who frequently require oxygen at home. A flow meter with a metering valve is places in the oxygen output line to adjust the flow to the prescribed level.
Flowmeters on concrete mixer show flow of special additives.This on-site mixer delivers the exact amount and the proper formulation required for the specific job. Dwyer Rate-Master® flowmeters permit setting the proper admixture flow to add the specified quantities of accelerators, retarders, air-entraining agents, etc.
Typical Flow Switch Applications
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