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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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