Diaphragm Valves, Butterfly Valves, and Accessories for Use in a Wide Range of Industrial Applications
Industrial Metal Diaphragm and Butterfly Valves
GEMÜ is a leading world-wide manufacturer of Industrial and Process valves and instrumentation supplying customers in the Pharmaceutical and Biotech industries, Food and Beverage industries, Microelectronics, Chemical industry, Water management, Mining and metal extraction, Power generation as well as many other industrial sectors. Our valves control and regulate inert or corrosive liquid and gaseous media as well as steam. GEMÜ has 6 manufacturing centres throughout the world, employing approx. 950 people. The company sells its products via more than 20 subsidiaries and a large world-wide distributor network. GEMÜ provides technical solutions for a large number of process and engineering plant, such as: Industrial plant and machine construction Water / waste water plant, water treatment Chemical industry Steel works Mining and metal extraction Power stations Automobile industry Shipbuilding industry / Offshore Sugar refining Petrochemical industry Pharmaceutical and biotechnological industries Foodstuffs industry Microelectronics and semiconductor industry HVAC / Fire protection systems GEMÜ - Your Valve Technology and Instrumentation Partner Advanced factory equipment and state-of-the-art machinery plus a motivated team ensure the best service through our worldwide network of distributors and stockholding subsidiaries. We are constantly making investments in order to optimize our existing products and to develop new products. Thus we can always provide technical solutions for individual applications. Clean water is a valuable resource which is increasingly in short supply as the human need for water is constantly rising. In order to ensure the provision of drinking water for the population and agriculture, as well as water for energy production processes and industry, an increasing number of water treatment plant are being built. GEMÜ is a manufacturer offering a wide range of products to find solutions for very different needs. Butterfly valves, diaphragm valves, globe and control valves, ball valves, as well as measuring and control systems, all from one established and proven supplier. Typical Applications Are: Drinking water treatment Sea water desalination Process water for energy production Cooling water circuits Process water for industry Water purification for swimming baths Treatment of leachate from rubbish dumps Municipal and industrial drainage water treatment and sewage treatment plants Municipal water supply High purity water production (for the semi-conductor industry) Water processing for the pharmaceutical industry, up to WFI (water for injection) quality Industrial Metal Diaphragm Valves Dependent on the design, especially suitable for highly-pure to heavily contaminated liquid and gaseous, inert and corrosive media. Just as classical control valves, diaphragm valves also have good control properties, especially for media which are contaminated or contain particles. The major areas of use are processes in a very wide range of different industrial applications. Connection types include butt-weld spigots, clamps and union ends, threaded sockets, threaded spigots and flanges. The connection types are generally available with most different standards and norms (DIN, ANSI, BS, JIS etc.). The actuator can be manually operated, pneumatically or hydraulically operated or motorized. Other Specifications Include: Operating pressure: 0 – 10 bar Operating temperature: -10 – 180°C Nominal size: DN 4 – 300 Body configuration: 2/2 way body - 2/2 way valve - T valve - 3/2 way valve - Tank valve - B600 - Multi-port valve - M600 Weir / Full Bore Diaphragm Valves, Metal Nominal sizes: DN 4 - DN 300 Operating pressure: 0 - 10 bar Operating temp.: -10 to 160°C Body material: Cast iron, S.G. iron, cast steel, brass, stainless steel, lined with hard or soft rubber, PP, PFA, PVDF, glass, ECTFE etc. Seal material: EPDM, FPM, PTFE Body configuration: Straight through body (2/2-way valve), T-valve body (3/2-way valve), multi-port valves (individual) Operator: manual, pneumatic, motorized Butterfly Valves Dependent on the design, especially suitable for pure to slightly contaminated liquid and gaseous, inert and corrosive media. The major areas of use are industrial applications, above all for water procurement and water treatment. Butterfly Valve Victoria Nominal sizes: DN 25 - DN 600 Max. Operating pressure: from 6 up to 16 bar (depending on version and DN size) Operating Temp.: -10°C up to 120°C Replaceable Liner made of EPDM, NBR, FPM Manual handlever or gearbox, pneumatic and electric actuators Butterfly Valve Desponia / Desponia Plus Nominal sizes: DN 25 - DN 1400 (Desponia Plus up to DN 600) Max. Operating pressure: up to 20 bar (depending on version) Max. Operating Temp.: 200° C Chemical Butterfly Valve Bianca Nominal sizes: DN 32 - DN 900 Max. operating pressure: 16 bar Operating temp.: -20°C to +200° C Double Eccentric Butterfly Valve Elara Nominal sizes: DN 50 - DN 400 Max. operating pressure: 50 bar Max. operating temp.: 600° C Swing Check Valve, Metal Nominal sizes: DN 40 - DN 600 Max. Operating pressure: 16 bar Body material: St. st. 1.4305, St. st. 1.4571, Brass, Aluminium, Cast bronze
GEMÜ is a leading world-wide manufacturer of Industrial and Process valves and instrumentation supplying customers in the Pharmaceutical and Biotech industries, Food and Beverage industries, Microelectronics, Chemical industry, Water management, Mining and metal extraction, Power generation as well as many other industrial sectors.
Our valves control and regulate inert or corrosive liquid and gaseous media as well as steam. GEMÜ has 6 manufacturing centres throughout the world, employing approx. 950 people. The company sells its products via more than 20 subsidiaries and a large world-wide distributor network.
GEMÜ provides technical solutions for a large number of process and engineering plant, such as:
GEMÜ - Your Valve Technology and Instrumentation Partner
Advanced factory equipment and state-of-the-art machinery plus a motivated team ensure the best service through our worldwide network of distributors and stockholding subsidiaries.
We are constantly making investments in order to optimize our existing products and to develop new products. Thus we can always provide technical solutions for individual applications.
Clean water is a valuable resource which is increasingly in short supply as the human need for water is constantly rising. In order to ensure the provision of drinking water for the population and agriculture, as well as water for energy production processes and industry, an increasing number of water treatment plant are being built.
GEMÜ is a manufacturer offering a wide range of products to find solutions for very different needs. Butterfly valves, diaphragm valves, globe and control valves, ball valves, as well as measuring and control systems, all from one established and proven supplier.
Typical Applications Are:
Dependent on the design, especially suitable for highly-pure to heavily contaminated liquid and gaseous, inert and corrosive media. Just as classical control valves, diaphragm valves also have good control properties, especially for media which are contaminated or contain particles. The major areas of use are processes in a very wide range of different industrial applications.
Connection types include butt-weld spigots, clamps and union ends, threaded sockets, threaded spigots and flanges. The connection types are generally available with most different standards and norms (DIN, ANSI, BS, JIS etc.).
The actuator can be manually operated, pneumatically or hydraulically operated or motorized.
Other Specifications Include:
Weir / Full Bore Diaphragm Valves, Metal
Dependent on the design, especially suitable for pure to slightly contaminated liquid and gaseous, inert and corrosive media. The major areas of use are industrial applications, above all for water procurement and water treatment.
Butterfly Valve Victoria
Butterfly Valve Desponia / Desponia Plus
Chemical Butterfly Valve Bianca
Double Eccentric Butterfly Valve Elara
Swing Check Valve, Metal
Plastic and Control Valves, Systems and Accessories
Plastic Diaphragm Valves It is dependent on the design, and is especially suitable for highly-pure to heavily contaminated, liquid and gaseous inert and corrosive media. Just as classical control valves, diaphragm valves also have good control properties, especially for media which is soiled or provided with particles. The major area of use in many industries is e.g. water treatment. The actuator can be manually operated, pneumatically operated and motorized. Connection types include: solvent cement spigots and weld spigots, union ends and flanges. The connection types are generally available with most different standards and norms, (DIN, imperial measurements etc.) Nominal sizes: DN 10 - DN 100 Operating pressure: 0 - 10 bar Operating temp.: -10 to 90°C Body material: PVC-U, ABS, PP, PVDF, PFA, Inliner PP-H Outliner PP reinforced Seal material: EPDM, FPM, PTFE Body configuration: Straight through body (2/2-way valve), T-valve (3/2-way valve), multi-port valves in PVC-U, PP and PVDF on request Operator: manual, pneumatic, motorized Globe Valves and Control Valves It is dependent on the design, especially suitable for clean liquid and gaseous, inert and corrosive media. Globe valves are highly suitable for control applications and can be combined with control cones and control devices for this purpose. Ball Valves It is dependent on the design, especially suitable for pure to slightly contaminated, liquid and gaseous inert and corrosive media. The major areas of use are industrial applications, above all for water procurement and water treatment. Swing Check Valve, Plastic Nominal sizes: DN 40 - DN 300 Max. operating pressure: 10 bar Body material: PVC-U, PP, PVDF Sensor Systems and Display Units In addition to process valves, GEMÜ provides an entire series of measurement and display units in the field of valve technology. Display units for sensor systems Flow measurement systems Level measurement systems Ball Valves, Metal Nominal sizes: DN 8 - DN 100 Operating temp.: -28 to 180°C Body material: Stainless steel Seal material: PTFE Body configuration: Straight through body (2/2-way 1 valve), T-valve body (3/2-way valve) Ball Valves, Plastic Nominal sizes: DN 15 - DN 100 Operating temp.: 0 to 120°C Body material: PVC-U, PP, PVDF Position and Process Controller GEMÜ supplies position and process controllers for process automation. The product range includes three-point controllers to control the position of motorized valves, electro-pneumatic positioners for pneumatic valves with quarter turn and linear actuators and industrial controllers for the precise regulation of temperature, pressure, flow and levels. ACCESSORIES A whole series of accessories and valve instrumentation rounds off the GEMÜ product range. This includes stroke limiters and optical and elelctrical position indicators for valves, positioner, assembly accessories, mounting kits for position indicators and controllers, control air adapters and Namur mounting brackets, device sockets etc.
Plastic Diaphragm Valves
It is dependent on the design, and is especially suitable for highly-pure to heavily contaminated, liquid and gaseous inert and corrosive media. Just as classical control valves, diaphragm valves also have good control properties, especially for media which is soiled or provided with particles.
The major area of use in many industries is e.g. water treatment.
The actuator can be manually operated, pneumatically operated and motorized.
Connection types include: solvent cement spigots and weld spigots, union ends and flanges. The connection types are generally available with most different standards and norms, (DIN, imperial measurements etc.)
Globe Valves and Control Valves
It is dependent on the design, especially suitable for clean liquid and gaseous, inert and corrosive media. Globe valves are highly suitable for control applications and can be combined with control cones and control devices for this purpose.
Ball Valves
It is dependent on the design, especially suitable for pure to slightly contaminated, liquid and gaseous inert and corrosive media. The major areas of use are industrial applications, above all for water procurement and water treatment.
Swing Check Valve, Plastic
Sensor Systems and Display Units
In addition to process valves, GEMÜ provides an entire series of measurement and display units in the field of valve technology.
Ball Valves, Metal
Ball Valves, Plastic
Position and Process Controller
GEMÜ supplies position and process controllers for process automation. The product range includes three-point controllers to control the position of motorized valves, electro-pneumatic positioners for pneumatic valves with quarter turn and linear actuators and industrial controllers for the precise regulation of temperature, pressure, flow and levels.
ACCESSORIES
A whole series of accessories and valve instrumentation rounds off the GEMÜ product range. This includes stroke limiters and optical and elelctrical position indicators for valves, positioner, assembly accessories, mounting kits for position indicators and controllers, control air adapters and Namur mounting brackets, device sockets etc.
Applications
Sea Water Desalination by Reverse Osmosis (Ro)System Drinking water production in Singapore, capacity: 136,000 m³/day. GEMÜ supplied more than 760 valves in nominal sizes from DN 15 - DN 1400 for this project. To offer the customer a package solution, valves were also purchased from partner companies and GEMÜ supplied everything as a single source supplier. Valves Used In the System Sea Water Inlet, Filtration/Flotation, Supply (Tanks and Pump Stations) Butterfly valves DN 65 - DN 1400 Disc materials 1.4408, bronze or ECTFE coated, Operating pressure depending on process area 2.5 - 18 bar. Pneumatic and motorized operators as well as manual operators with hand levers and gears Water Pre-Treatment and Post Treatment, Dosing of FeCl3, H2SO4, HCl, NaOH Diaphragm valves DN 15 - DN 40 Valve bodies PVC-U, PVDF Operating pressure approx. 3 - 5 bar All valves with pneumatic operators, fully automated. Variable area flowmeters DN 20 - DN 40 were also installed Pump Stations in Front of the Osmosis Modules High pressure valves and non-return valves in DN 300 Valves made of special materials e.g. Super Duplex A890 Operating pressure 5 - 84 bar Differential pressure up to 59 bar All valves are pneumatically operated and equipped with intelligent positioners Particle Filtration – Pre-Stage Water Treatment System Particle filtration for separating water from solid matter such as sand, mud, precipitation, iron, manganese, plant residues and very small living things or other suspended matter and particles. For water taken from rivers, lakes, wells or contaminated systems as well as for mechanical cleaning of waste water. Valves Used In the System Diaphragm valves DN 15 - DN 300 for highly contaminated water Butterfly valves DN 65 - DN 600 for water with a low degree of contamination and large nominal sizes Valve material: PVC-U, PP, PA, steel, occasionally stainless steel Manual, pneumatic or motorized operators Filter Monitoring Pressure or differential pressure measuring instruments GEMÜ 3120 for operating pressures 0-10 bar Cooling Circuit for Industrial Water Production system for special microchips and test wafers for the electronics industry. All the facilities are hermetically separated from the outside world in order to prevent contamination in semi- conductor production. The cooling water must not cause contamination of the cooling installation and the cleanrooms. DI water is used as the heat transfer medium /coolant. Valves Used In the System Butterfly valves DN 65 - DN 200 Rilsan coated cast iron bodies (LUG), EPDM liner and stainless steel disc Manually gear operated; in the process control system the butterfly valves are equipped with a motorized operator Treatment of Leachate from Rubbish Dumps Treatment /detoxication of leachate from rubbish dumps. The pretreated raw water is treated in a three-stage reverse osmosis process to keep the filtration residues as low as possible. The system is PLC controlled and operates fully automatically under constant monitoring. If the limiting values are exceeded by scaling or fouling, the system is automatically turned off and cleaned by CIP equipment to reduce biofouling. Valves in the normal pressure area of the system Diaphragm valves GEMÜ SilverLine® S 660, DN 15 - DN 50 Valve body: PVC-U Operating pressure 1-6 bar Pneumatically operated Brackish Water Treatment and Boron Decontamination System: Sea water treatment in a region of the Eastern Mediterranean. The amount of drinking water to be treated daily is 6,500 cubic metres. The boron content in the raw water is available as boric acid at an amount of 1.0 - 2.5 mg/per litre. The boron content is reduced to less than 0.25 mg/per litre. The system includes various filtration stages, several ion exchangers with an additional stage for boron as well as a final reverse osmosis process. Valves used in the system Diaphragm valves in polypropylene (PP), DN 25 - DN 100 Diaphragm valves with PP-lined S.G. iron bodies, DN 25 - DN 100 Pneumatic operators, fully automated GEMÜ 1435 EPos® positioners for control circuits mounted to diaphragm valves In the water inlet and outlet manually operated butterfly valves are used which are only rarely operated. Sewage Clarification Plant, Water Activating Basin System: It is a domestic sewage cleaning with presettling basin, activating basin and final sedimentation basin. The compressed air for activation is generated in a compressor house and fed to the settling basin at 4 to 6 bar. At the border of the basin the collecting main opens into a manifold from where it discharges into the sewage along the basin. Under the surface the compressed air is distributed in the whole basin by nozzles. Valves used in the system GEMÜ wafer type butterfly valves, DN 80 - DN 1000 Valve body: cast iron, epoxy coated (400 µm), with stainless steel discs and LUG design DN 65 - DN 400, in sizes larger than DN 400 in double flange design, nitrile liner (NBR / Perbunan) Butterfly valves up to DN 125 are manually operated, the larger sizes are motorized GEMÜ plastic solenoid valves are used for dosing ferric chloride Special Features The sewage inlet and outlet is controlled by butterfly valves installed under water. Their gear is flooded and the motorized operator is mounted outside the basin. Click Here to View Valves for Water Treatment Plant
Drinking water production in Singapore, capacity: 136,000 m³/day. GEMÜ supplied more than 760 valves in nominal sizes from DN 15 - DN 1400 for this project. To offer the customer a package solution, valves were also purchased from partner companies and GEMÜ supplied everything as a single source supplier.
Valves Used In the System
Sea Water Inlet, Filtration/Flotation, Supply (Tanks and Pump Stations)
Water Pre-Treatment and Post Treatment, Dosing of FeCl3, H2SO4, HCl, NaOH
Pump Stations in Front of the Osmosis Modules
System
Particle filtration for separating water from solid matter such as sand, mud, precipitation, iron, manganese, plant residues and very small living things or other suspended matter and particles. For water taken from rivers, lakes, wells or contaminated systems as well as for mechanical cleaning of waste water.
Filter Monitoring
Pressure or differential pressure measuring instruments GEMÜ 3120 for operating pressures 0-10 bar
Production system for special microchips and test wafers for the electronics industry. All the facilities are hermetically separated from the outside world in order to prevent contamination in semi- conductor production. The cooling water must not cause contamination of the cooling installation and the cleanrooms. DI water is used as the heat transfer medium /coolant.
Treatment /detoxication of leachate from rubbish dumps. The pretreated raw water is treated in a three-stage reverse osmosis process to keep the filtration residues as low as possible. The system is PLC controlled and operates fully automatically under constant monitoring. If the limiting values are exceeded by scaling or fouling, the system is automatically turned off and cleaned by CIP equipment to reduce biofouling.
Valves in the normal pressure area of the system
System:
Sea water treatment in a region of the Eastern Mediterranean. The amount of drinking water to be treated daily is 6,500 cubic metres. The boron content in the raw water is available as boric acid at an amount of 1.0 - 2.5 mg/per litre. The boron content is reduced to less than 0.25 mg/per litre. The system includes various filtration stages, several ion exchangers with an additional stage for boron as well as a final reverse osmosis process.
Valves used in the system
It is a domestic sewage cleaning with presettling basin, activating basin and final sedimentation basin. The compressed air for activation is generated in a compressor house and fed to the settling basin at 4 to 6 bar. At the border of the basin the collecting main opens into a manifold from where it discharges into the sewage along the basin. Under the surface the compressed air is distributed in the whole basin by nozzles.
Special Features
The sewage inlet and outlet is controlled by butterfly valves installed under water. Their gear is flooded and the motorized operator is mounted outside the basin.
Click Here to View Valves for Water Treatment Plant
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