Watts 354A-030 - Part of the 335 Series ZC100F-3NH Cast-iron upper and lower bodies

Cast-iron upper and lower bodies for strength and longevity

ZN400B-2IG

Bonnet O-ring

and the adjustable top ensures proper alignment with the finished floor

Watts 354A-030 - Part of the 335 Series ZC100F-3NH Cast-iron upper and lower bodiesThis 3 4 inch pressure relief valve is used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of a iron body with forged bronze inlet, non metallic disc to metal seating and stainless steel spring. This valve resists corrosive water conditions, sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety