GENUINE IDEAL ISAR PRESSURE RELIEF VALVE KIT 173977 BRAND NEW THERMOSTATS Part No: 0020132764 (marked as

Part No: 0020132764 (marked as 0020034521 or 0020080512)

ECOTEC PLUS 618 VU 186/5-5

Vaillant ecoTEC PLUS 612 R1

VAILLANT VUW 286/3-3 R1 (2005-2010)

The tank is filled with air that acts as a cushion against surges in pressure within the system

GENUINE IDEAL ISAR PRESSURE RELIEF VALVE KIT 173977 BRAND NEW THERMOSTATS Part No: 0020132764 (marked asGENUINE IDEAL ISAR PRESSURE RELIEF VALVE KIT 173977 BRAND NEW. DEAL 173977 PRESSURE RELIEF VALVE KIT. Product Information: The pressure relief valve helps to eleviate pressure build up within a heating system. It is set to vent as pressure increases to prevent pressure causing the system to malfunction or break. This part is present in 10 different boilers in the Ideal range including the Ideal EVO HE , ESPRIT 2 24 , ESPRIT 2 30 , ESPRIT 2 35 , ISAR