Specification Brand : conrader BulletPoint : Foot Valve and weight BulletPoint1 : Factory Set at 140 psi Cut In & 175 psi Cut Out Pressure BulletPoint2 : 1/2" Male npt Pipe Thread Outlet to Tank BulletPoint3 : 3/4" Compression Thread Side Inlet for 3/4" Copper Tubing BulletPoint4 : 1/8" npt Female Pipe Thread Port for Throttle Control BulletPoint5 : Made in the United States Color : Black ConnectorType : Threaded ExteriorFinish : Brass ExternallyAssignedProductIdentifier1 : 0684659122322 ExternallyAssignedProductIdentifier2 : 684659122322 IncludedComponents : Valve ItemDisplayDimensions_Length : 2.6 inches ItemDisplayWeight : 1 pounds ItemName : 3/4 Compression x 1/2" NPT Gas Air Compressor Pilot Unloader Check Valve 145-175 ItemPackageDimensions_Height : 16 centimeters ItemPackageDimensions_Length : 2.9 centimeters ItemPackageDimensions_Width : 13.3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : industrial-check-valves Manufacturer : Conrader Material : Copper Material1 : Rubber Material2 : Silicone ModelName : Midline Valves XNGH002 ModelNumber : DD00398_01X NumberOfItems : 1 NumberOfPorts : 3 PackageLevel : unit PartNumber : NG-20M-P2-145-175 ProductDescription : This piloted discharge check valve is a combination of a pilot valve, a pressure discharge valve, and a check valve in one complete piece to make a constant run air compressor with gas engine or electric motor. This check valve combo is made by Conrader in the United States and is an ng series valve. This valve is equipped with an in-line check valve and attached to the side is a built-in piloted unloader valve set to 145-175 psi. There is a muffler on the exhaust air port to quiet down the unloaded air that is released once the compressor reaches 175 psi. On the back of the valve there is a 1/8" Female npt port that controls the throttle on a gas engine and/or unloader valves on some pumps. Specifications: Material: Machined Brass Made in the United States 1/2" Male npt Pipe Thread Outlet to Tank 3/4" Compression Thread Side Inlet for 3/4" od Copper Tubing 1/8" npt Female Pipe Thread Port for Throttle or Unloader Control Factory Set at 145 psi Cut In & 175 psi Cut Out Pressure Pressure Can Be Adjusted 30-40 psi Up or Down 30 cfm Max Rating Equipped with a Manual Unloader Flip Valve at the Top of the Unloader This valve is factory set at 145-175 psi. Once your compressor pumps up to 175 psi the unloader valve will kick in and your compressor will pump air through the muffler out to the atmosphere until your air tank pressure gets down to 145 psi. When your air pressure gets down to 145 psi the unloader will stop, and your compressor will start building pressure again. ProductSiteLaunchDate : 2019-07-18T14:18:41.095Z Size : DN15-1/2" Style : Single Pack SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40141600 ValveType : Piloted Discharge Check Valve with Unloader Functionality