| BOILER |
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| SOLENOID VALVE |
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| EYE WASH |
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Instantaneous water heaters / Boilers
By compensating for varying inlet pressures flow regulators provide a constant flow rate of cold water through the heat exchanger to maintain the water at a constant temperature.
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Solenoid valves
With the combination of a time controlled solenoid valve and a pressure compensating flow regulator, a pre-defined volume of fluid can be dispensed regardless of the line pressure. Applications range from beverage dispensing equipment, electronic faucets to a variety of appliances.
The following examples show how flow regulators can precisely control the dosage of water or other liquids:
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Application: Urinal
| Flow regulator: |
12 l/min |
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60 sec. |
= 0.2 l/sec; |
flushing time of 5 sec. = flush volume 1liter |
| Flow regulator: |
18 l/min |
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60 sec. |
= 0.3 l/sec; |
flushing time of 5 sec. = flush volume 1.5 liters |
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Application: Flush Cistern
| Flow regulator: |
60 l/min |
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60 sec. |
= 1 l/sec; |
filling time of 5 sec. = volume 5 liters |
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Application: Vending Machine
| Flow regulator: |
6 l/min |
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60 sec. |
= 0.1 l/sec; |
dose interval of 2 sec. = dose rate 0.2 liter |
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Stream Control
Flow regulators can help to keep the length of a water stream constant in spite of varying pressures. For instance, emergency eye washes must have a certain length of water stream to ensure that the injured person's eyes can be cleaned quickly and effectively.
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Isolation Valves
As the pressure decreases the elastomer relaxes and reopens the water passage (return to position 2 and 1). An isolation valve can accommodate a regulator in either the inlet/outlet connection or the ball of a quarter turn valve. Some varieties can be accessed in the closed position without drain down. The flow regulator can then be removed for maintenance, replacement or upgrade simply. Thus, the isolation valve provides accurate flow control for downstream appliances.
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