{"product_id":"non-return-valve-for-50l-1s-020136","title":"Generic Valve Non Return For 50Lt","description":"\u003cp\u003eA generic 50mm non-return valve (often associated with 50mm or 2-inch plumbing, or contextually paired with 50-liter tanks or air compressors) is a one-way check valve that allows liquid or air to flow in a single direction while automatically closing to prevent backflow.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eKey Description \u0026amp; Specifications\u003c\/p\u003e\u003cp\u003e• Function: Permits flow in one direction only and immediately seals shut when flow stops or reverses, protecting pumps from reverse-spin damage or stopping air\/water from leaking back out.\u003c\/p\u003e\u003cp\u003e• Size: 50mm (2-inch) diameter, designed to fit standard 50mm PVC or pressure pipes.\u003c\/p\u003e\u003cp\u003e• Materials: Commonly built from durable PVC, dark grey or plastic body types, with internal springs, flaps, or ball mechanisms and EPDM rubber seals.\u003c\/p\u003e\u003cp\u003e• Common Applications:\u003c\/p\u003e\u003cp\u003e• Water supply and irrigation lines\u003c\/p\u003e\u003cp\u003e• Pool pump plumbing to maintain prime\u003c\/p\u003e\u003cp\u003e• Aquaponics, fish ponds, and aquaculture setups\u003c\/p\u003e\u003cp\u003e• Small pressure vessels or 50L compressor\/fluid systems where reverse pressure must be blocked\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":68063023857977,"sku":"189020136","price":138.09,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/0243\/7945\/files\/189020136__20261112143045_6ab4eb3b.png?v=1794486794","url":"https:\/\/shop.nwk.co.za\/products\/non-return-valve-for-50l-1s-020136","provider":"NWK Shop","version":"1.0","type":"link"}