Pressure Relief Valve Assembly, 3"

Pressure Relief Valve Assembly, 3" for S61, S63, S631, S651, S653, S56, S69, S73, S15, SD6, SD69 (3" NPT)

Designed for low-pressure blowers, these valves will automatically protect blowers from over-pressurization by discharging air to the outside. The valve assembly is easy to install and calibrate. Pressure relief valves can be noisy when dumping air, so add a muffler assembly and steel coupler (not included) if you plan to use it as a normally open bleed valve. Both sides are FNTP. One-year warranty.