{"product_id":"kingston-kng570-high-capacity-asme-safety-relief-valve","title":"Kingston KNG570 High-Capacity ASME Safety Relief Valve — Brass, Metal Seat, 300 PSI","description":"\u003cp\u003eThe Kingston KNG570 is a high-capacity, ASME code-certified safety relief valve engineered for heavy-duty industrial pressure protection. Built with rugged brass and bronze construction and a 17-7 stainless steel spring, it delivers high relief capacity with excellent re-seating performance — ideal for protecting air compressors, receiver tanks, boilers, pressure vessels, and compressed-air and gas piping systems.\u003c\/p\u003e\n\u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eASME Section VIII certified and National Board flow-rated for capacity\u003c\/li\u003e\n\u003cli\u003eBrass and bronze body with standard 17-7 stainless steel spring\u003c\/li\u003e\n\u003cli\u003eMetal seat with top-guided seating and discharge for tight, repeatable shutoff\u003c\/li\u003e\n\u003cli\u003eFull-nozzle, high-capacity design — 6 orifices across 12 inlet\/outlet piping configurations\u003c\/li\u003e\n\u003cli\u003ePivoting ball-post design for excellent re-seating characteristics\u003c\/li\u003e\n\u003cli\u003eShort, tuned blowdown, adjustable via double heavy ring\u003c\/li\u003e\n\u003cli\u003eHeavy-duty hood and lift-lever mechanism\u003c\/li\u003e\n\u003cli\u003eMaximum set pressure: 300 PSI (air\/gas); up to 250 PSI (steam)\u003c\/li\u003e\n\u003cli\u003eTemperature range: -20°F to 425°F\u003c\/li\u003e\n\u003cli\u003eConnections: 3\/4\" to 2-1\/2\" FNPT inlet × 1\/2\" to 2-1\/2\" MNPT outlet (NPT)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003eAir compressors, air receivers and storage tanks, refrigerated and desiccant dryers, steam boilers, pressure vessels, accumulators, reducing stations, inter\/after coolers, autoclaves and sterilizers — anywhere high-capacity overpressure protection is required.\u003c\/p\u003e\n\u003cp\u003eSelect your exact inlet × outlet configuration below. The Kingston KNG570 high-capacity ASME safety relief valve combines proven brass construction, a durable metal seat, and National Board-rated flow to keep compressed-air, gas, and steam systems protected and code-compliant.\u003c\/p\u003e","brand":"Kingston","offers":[{"title":"3\/4\" FNPT x 1\/2\" MNPT","offer_id":54270614470931,"sku":"DC1M1K1-PSI","price":356.17,"currency_code":"USD","in_stock":true},{"title":"3\/4\" FNPT x 3\/4\" MNPT","offer_id":54270614503699,"sku":"DD1M1K1-PSI","price":365.0,"currency_code":"USD","in_stock":true},{"title":"1\" FNPT x 3\/4\" MNPT","offer_id":54270614536467,"sku":"ED1M1K1-PSI","price":395.67,"currency_code":"USD","in_stock":true},{"title":"1\" FNPT x 1\" MNPT","offer_id":54270614569235,"sku":"EE1M1K1-PSI","price":440.5,"currency_code":"USD","in_stock":true},{"title":"1-1\/4\" FNPT x 1\" MNPT","offer_id":54270614602003,"sku":"FE1M1K1-PSI","price":456.33,"currency_code":"USD","in_stock":true},{"title":"1-1\/4\" FNPT x 1-1\/4\" MNPT","offer_id":54270614634771,"sku":"FF1M1K1-PSI","price":532.67,"currency_code":"USD","in_stock":true},{"title":"1-1\/2\" FNPT x 1-1\/4\" MNPT","offer_id":54270614667539,"sku":"GF1M1K1-PSI","price":572.67,"currency_code":"USD","in_stock":true},{"title":"1-1\/2\" FNPT x 1-1\/2\" MNPT","offer_id":54270614700307,"sku":"GG1M1K1-PSI","price":634.67,"currency_code":"USD","in_stock":true},{"title":"2\" FNPT x 1-1\/2\" MNPT","offer_id":54270614733075,"sku":"HG1M1K1-PSI","price":704.5,"currency_code":"USD","in_stock":true},{"title":"2\" FNPT x 2\" MNPT","offer_id":54270614765843,"sku":"HH1M1K1-PSI","price":838.83,"currency_code":"USD","in_stock":true},{"title":"2-1\/2\" FNPT x 2\" MNPT","offer_id":54270614798611,"sku":"JH1M1K1-PSI","price":965.33,"currency_code":"USD","in_stock":true},{"title":"2-1\/2\" FNPT x 2-1\/2\" MNPT","offer_id":54270614831379,"sku":"JJ1M1K1-PSI","price":1449.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/mFVUxfuxG5NM1gWYckkKNiwB6bHInAkPclDDwP1DFUMJDajZKuPgAvtFcHa6kSu2__09062.1758026901.jpg?v=1781115491","url":"https:\/\/aircompressorstore.com\/products\/kingston-kng570-high-capacity-asme-safety-relief-valve","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}