Watts® 174A Relief Valve, 1-1/2 Inch, FNPT, 100 psi, Hot Water Media, Bronze Body, Stainless Steel Spring, Metal Seat, Non-Metallic Disc, Lever Actuator, 250 deg F, 4-7/8 Inch L x 9 Inch H
- Seat located above drain water can't be trapped and sediment can't foul seat
- Non-mechanical seat-to-disc alignment will not stick or freeze
- Water seal of high temperature resisting material isolates spring working parts from water during relief
- Lead free
Standard/Approvals: ASME Specified, MIL-V-18634B, Type I, Class 3A, Style A
Application: For Pressure Protection of Hot Water Heating Boilers
