{"product_id":"campbell-1-1-2-in-d-x-1-1-2-in-d-plastic-spring-loaded-check-valve","title":"Campbell 1-1\/2 in. D X 1-1\/2 in. D Plastic Spring Loaded Check Valve","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eCampbell 1-1\/2 in. D X 1-1\/2 in. D Plastic Spring Loaded Check Valve\u003c\/strong\u003e delivers dependable backflow protection for water lines with a compact, lead-free plastic construction.\u003c\/p\u003e \u003cp\u003eDesigned for pressure-driven operation, this valve automatically opens as water flows in the intended direction and closes when flow stops, preventing reverse flow and protecting your system from contamination.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial and safety\u003c\/strong\u003e: plastic construction with lead-free composition, suitable for potable water applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSize and connections\u003c\/strong\u003e: 1-1\/2 in inlet and 1-1\/2 in outlet; fits standard 1-1\/2 in piping.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePerformance\u003c\/strong\u003e: rated for up to 175 psi maximum pressure and temperatures up to 180°F, making it suitable for typical domestic water supply and light-duty industrial runs.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOrientation\u003c\/strong\u003e: mounting orientation supports horizontal or vertical installation to fit your plumbing layout.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackaging\u003c\/strong\u003e: boxed packaging for easy handling and storage before installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this Campbell check valve stands out:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eReliable spring-loaded mechanism\u003c\/strong\u003e ensures fast response to changing flow, reducing backflow risk without manual intervention.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLead-free material\u003c\/strong\u003e aligns with modern plumbing codes and safety expectations, helping you protect drinking water quality.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e: ideal for residential water lines, irrigation, and other low-to-mid pressure piping where backflow prevention is essential.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSimple installation\u003c\/strong\u003e: designed for straightforward integration into existing 1-1\/2 in lines with no complex fittings required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips for best results:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eVerify that the inlet and outlet are connected to the correct flow direction; the valve’s activation is pressure-driven, so consistent flow is key to proper sealing.\u003c\/li\u003e \u003cli\u003eInstall in a accessible location to allow quick inspection or replacement if necessary.\u003c\/li\u003e \u003cli\u003eFor higher temperature or pressure conditions, confirm that your system remains within the 180°F \/ 175 psi limits to maintain reliable performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Campbell","offers":[{"title":"Default Title","offer_id":52171841700114,"sku":"49392","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/49392_A.eps_High.jpg?v=1775503140","url":"https:\/\/nationalhardwaregroup.com\/products\/campbell-1-1-2-in-d-x-1-1-2-in-d-plastic-spring-loaded-check-valve","provider":"National Hardware Group","version":"1.0","type":"link"}