{"product_id":"champion-3-4fpt-3-4mpt-1-8unloaderport-check-valve","title":"Champion 3\/4FPT-3\/4MPT-1\/8UnloaderPort Check Valve","description":"\u003cdiv\u003e\u003cp\u003eThe Champion brass in-tank check valve combines a 3\/4\" female pipe thread (FPT) inlet and a 3\/4\" male pipe thread (MPT) outlet with a 1\/8\" unloader port, engineered for direct installation at the tank interface of a reciprocating air compressor. Its brass body resists corrosion and wear, while the 1\/8\" port provides a dedicated path for an unloader line to vent when the unit stops, preventing backflow into the pump and helping stabilize pressure. This exact configuration is commonly sold as Champion P07538A or P05822A, described as 3\/4\" FPT x 3\/4\" MPT in-tank check valves with a tapped 1\/8\" unloader port, aligning with standard Champion tank plumbing. Retail listings note a nominal flow around 30 SCFM, though actual performance depends on system pressure, pump model, and how the unloader port is used within the pressure-switch circuit. This valve is suited for replacement in Champion-branded tank systems where a single-direction flow and reliable unloading are required to maintain efficient compressor operation.\u003c\/p\u003e\u003c\/div\u003e","brand":"CHAMPION","offers":[{"title":"New","offer_id":51677949788462,"sku":null,"price":72.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_1a07ec31-c203-435a-96d1-e43e52d59756.jpg?v=1769569908","url":"https:\/\/plgautomation.com\/products\/champion-3-4fpt-3-4mpt-1-8unloaderport-check-valve","provider":"PLG Automation ","version":"1.0","type":"link"}