Safety Relief Expansion Valves DSV527630
Search
Close
What are you looking for?
Caleffi 527 series safety relief valve for use in central heating systems.
Connections: 25mm x 32mm outlet (female connections)
Pressure rating: 300kPa
Discharge overpressure: 20%
Closing differential: 20%
Temperature range: 5–110°C
Materials
Body: - 1/2”-3/4”: brass EN 12165 CW617N
- 1”-1 1/4”: brass EN 1982 CB753S
Cover: brass EN 12165 CW617N
- 513-514 (1/2”): PA6G30
Control stem: brass EN 12164 CW614N
Obturator seal: EPDM
Diaphragm: EPDM
Spring: steel EN 12270-1
Control knob:
- 311-312-313-314-513 (1/2”)-514: ABS
- 513 (1” and 1 1/4”)-527 EST: PA6G20
Nominal pressure: PN 10
Working temperature range: 5–110 °C
