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Bulk Pneumatic Pressure Relief Valves

Three models are available, 15 lb pressure relief valve for the trailers, and 18 lb and 20 lb relief valves for the blower applications. All three models are available in either male or female 2” NPT thread. A unique three piece body that reduces ice build-up offers high air flow and reduces maintenance costs.

Highlights/Advantages

  • 2” female NPT mount.
  • 3” male NPT mount.
  • Tamper-proof seal.
  • Reinforced silicone rubber diaphragm, rated -60 ºF to +400 °F.
  • Non-galling zinc-aluminum base.
  • Unique three piece body reduces ice build-up, offers high air flow and ease of maintenance.

Product Information


MODEL UNIT 881-221-01 881-222-01 881-223-01 881-224-01 881-225-01 881-226-01
Weight (Pounds/Kilograms) 6.4/2.90 6.4/2.90 6.4/2.90 6.4/2.90 6.4/2.90 6.4/2.90

Ordering Information


PART NUMBER DESCRIPTION
881-224-01 2” Female Pressure Relief Valve - 15 lbs
881-225-01 2” Female Pressure Relief Valve - 18 lbs
881-225-01 2” Female Pressure Relief Valve - 20 lbs
881-221-01 2” Male Pressure Relief Valve - 15 lbs
881-222-01 2” Male Pressure Relief Valve - 18 lbs
881-223-01 2” Male Pressure Relief Valve - 20 lbs