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
