PWV series pressure controlled water valves are usually installed
on the inlet of condenser, which can regulate the flow of cooling
water according to the change of condensing pressure.
When condensing pressure of compressor rises, valve is turned up
automatically, so more cooling water enters the condenser to
accelerate the condensing of refrigerant. Reversely, when
condensing pressure of compressor drops, valve is turned down
automatically, so cooling water reduces and the condensing pressure
is kept within certain range.
Adjust screw rod at clockwise rotation, the valve is turned down;
inversely, the valve is turned up.
Typedata
Symbol | Model | Condenser side | Liquid side | Factory | Kv value | |||||
Refrigerant | Adjusting | Max. | Max. | Media | Max. | Max. | ||||
Low | PWV3/8 | R134a, | 0.51.8 | 2 | 2.4 | Fresh water | 1 | 60 | 0.75 | 0.8 |
PWV1/2 | 2.5 | |||||||||
PWV3/4 | 3.2 | |||||||||
PWV1 | 5.0 | |||||||||
High | PWV3/8G | 0.72.3 | 2.6 | 3 | 2 | 0.8 | ||||
PWV1/2G | 2.5 | |||||||||
PWV3/4G | 3.2 | |||||||||
PWV1G | 5.0 | |||||||||
Kv value is the flow of water in m3/h at a pressure drop across valve of 0.1 MPa,= 1000 kg/m3. | ||||||||||
Connection
Model | Condenser side | Liquid side |
PWV3/8、PWV3/8G | 1/4 flare 7/16"-20UNF nut | 3/8" flare |
PWV1/2、PWV1/2G | 1/4 flare 7/16"-20UNF nut | G1/2 |
PWV3/4、PWV3/4G | 1/4 flare 7/16"-20UNF nut | G3/4 |
PWV1、PWV1G | 1/4 flare 7/16"-20UNF nut | G1 |
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