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Differential pressure relief valves
Product Types
Differential pressure relief valves are used in heating and cooling systems to ensure a minimum flow level through the pump, maintaining the desired supply temperature when the system operates at low loads or keeps constant differential pressure for specific circuits with terminal units.
Differential Pressure Controllers | PN | min temp | max temp | Setting range | Shut-off | Dimensions | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bar | °C | °C | kPa | 15 | 20 | 25 | 32 | 40 | 50 | 56 | 80 | 100 | 125 | ||
Hydrolux | 16 | -10 | 120 | 5-50, 30-180 | NO | ||||||||||
BPV | 20 | -20 | 120 | 10-60 | YES | ||||||||||
PM 512 | 16/25 | -10 | 100 | 0-1600 | NO |
Hydrolux
- Direct setting by handwheel with setting scale
- Low proportional hysteresis
- Very quiet in operation
- Made from corrosion resistant gunmetal
BPV
- Setting scale with protective cap against dirt and tampering
- Shut-off function
- Easy setting with 3mm hexagonal key
- Made from patented alloy AMETAL®
PM 512
- Pneumatic principle allows adjustable set-point from 0 to 16 bar
- In-line design for quiet operation
- Opens at increasing inlet pressure
- Opens at increasing inlet pressure
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