Caleffi 527 Series Safety Valve 25mm x 32mm 300kPa

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