Safety unit for heating systems, to be installed in the boiler room.
3/4" female thread, UNI EN ISO 228-1.

Composition
- Pressure gauge, 4 bar Ø50
- Safety valve, 3 bar 1/2" M-F
- Tecno - Varia vent valve

Construction
- Cover in Zytel (HTN51)
- Body in UNI EN 12165 CW 617 N brass
- Black manual vent cap in reinforced PA 6
- Grey automatic vent cap in reinforced PA 6
- Float in PP
- Rod in PA 6
- Ring nut in PPO
- Spring in stainless steel
- Shutter in silicone rubber
- O-Ring in NBR
- Pressure gauge, 4 bar Ø50 mm
- Safety valve, 3 bar 1/2" M-F
- Gaskets in fibre
- Gasket in EPDM
- Float support in AISI 305 stainless steel