{"product_id":"industrial-st171400av-air-compressor-pilot-unloader-check-valve","title":"Industrial ST171400AV Air Compressor Pilot Unloader Check Valve","description":"\u003cdiv\u003e\u003cp\u003eST171400AV is a piloted unloader valve designed for RIDGID and Campbell Hausfeld air compressors, most notably the AD10 platform. The assembly integrates the pilot valve, head-unloader function, and a check valve in a single housing, coordinating the pump-down and restart sequence by venting the compressor head at shutdown and allowing a smooth restart when pressure falls to the pull-down setting. In supplier catalogs, the part is listed as ST171400AV and is also found under the GP90150A designation as a replacement for RIDGID\/Campbell Hausfeld units. This unloader\/check valve assembly manages air flow during the compressor’s start\/stop cycle, helping prevent pressure surges and reduce wear on the pump and motor through controlled unloading of head pressure prior to re-energizing the system.\u003c\/p\u003e\u003c\/div\u003e","brand":"Campbell","offers":[{"title":"New","offer_id":51677631938862,"sku":null,"price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_58dc3cb2-384e-4162-9b09-1d7ae42c4515.jpg?v=1769565689","url":"https:\/\/plgautomation.com\/products\/industrial-st171400av-air-compressor-pilot-unloader-check-valve","provider":"PLG Automation ","version":"1.0","type":"link"}