{"product_id":"industrial-ac-0631-c6110-in-tank-check-valve-assembly","title":"Industrial AC-0631-C6110 In-Tank Check Valve Assembly","description":"\u003cdiv\u003e\u003cp\u003eIndustrial AC-0631-C6110 In-Tank Check Valve Assembly is a compact inline valve with a 3\/8 in compression inlet and a 1\/2 in MNPT outlet, designed for installation in the air line between a compressor and its tank. It belongs to the Super-Chek family of in-tank check valves, and its core function is to prevent reverse flow from the tank back into the compressor when the unloader valve opens, preserving tank pressure during unloading. The part has a documented history of interchangeability, with legacy numbers including AC-0631, 892351, CTD3812, and A19712; many catalogs list A19712 as the current replacement for AC-0631\/C6110. The 3\/8 in compression inlet mates to standard discharge fittings, while the 1\/2 in MNPT outlet threads into the tank or unloader port, enabling compatibility with a wide range of portable and stationary compressors that use in-tank check valves. Because this is a common 3\/8 in compression to 1\/2 in MNPT configuration, it can be swapped into many makes and models with minimal modification, making it a practical service part for routine maintenance or repair of air systems.\u003c\/p\u003e\u003c\/div\u003e","brand":"AIR","offers":[{"title":"New","offer_id":51657142042926,"sku":null,"price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_84a4c4f3-35e0-4a8d-b9ca-71b751ce5fb5.jpg?v=1769466352","url":"https:\/\/plgautomation.com\/products\/industrial-ac-0631-c6110-in-tank-check-valve-assembly","provider":"PLG Automation ","version":"1.0","type":"link"}