{"product_id":"1-2-inch-direct-operated-pressure-regulating-valve-455-12-n-51","title":"1\/2 Inch Direct Operated Pressure Regulating Valve 455-12-N-51","description":"\u003cp\u003e[pdf]\u003cembed src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0213\/7895\/7412\/files\/PMPC_PressureMotivePump_7274be13-8cd7-4a8a-ae77-bfce3f15e079.pdf?v=1746614352\" width=\"\" height=\"\" type=\"application\/pdf\"\u003e [\/pdf]\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 78.3929%; height: 166.75px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 51.2702%; text-align: center; height: 39.1875px;\"\u003e\u003cstrong\u003e\u003cspan\u003eType\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.2679%; text-align: center; height: 39.1875px;\"\u003e\u003cspan\u003eOperated Pressure Regulating Valve \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 51.2702%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cspan\u003eSize\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.2679%; text-align: center; height: 19.5938px;\"\u003e\u003cspan\u003e1\/2\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 51.2702%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cspan\u003eConnection\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.2679%; height: 19.5938px;\"\u003e\n\u003cdiv id=\"ctl00_ContentPlaceHolderContent_GvTechSpec\" class=\"RadGrid RadGrid_Default\" style=\"text-align: center;\" tabindex=\"0\"\u003e\u003cspan\u003eNPT\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 51.2702%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cspan\u003eReduced Pressure Range (psig)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.2679%; text-align: center; height: 19.5938px;\"\u003e\u003cspan\u003e60-125\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 51.2702%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cspan\u003eMax. Inlet Pressure (psig)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.2679%; height: 19.5938px;\"\u003e\n\u003cdiv id=\"ctl00_ContentPlaceHolderContent_GvTechSpec\" class=\"RadGrid RadGrid_Default\" style=\"text-align: center;\" tabindex=\"0\"\u003e\u003cspan\u003e250\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 51.2702%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cspan\u003eMin. Inlet Pressure (psig)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.2679%; height: 19.5938px;\"\u003e\n\u003cdiv id=\"ctl00_ContentPlaceHolderContent_GvTechSpec\" class=\"RadGrid RadGrid_Default\" style=\"text-align: center;\" tabindex=\"0\"\u003e\u003cspan\u003e5\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"width: 51.2702%; text-align: center; height: 10px;\"\u003e\u003cstrong\u003e\u003cspan\u003eMax. Differential Pressure (psig)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.2679%; text-align: center; height: 10px;\"\u003e\u003cspan\u003e125\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 51.2702%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003ePart No\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.2679%; text-align: center; height: 19.5938px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e455-12-N-51\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eAbout:\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003eDirect-operated pressure-regulating valves are designed for pressure reduction in steam, air, and various gas applications. Featuring a balanced seat and disc design, these valves can operate effectively even at low inlet pressures, down to 5 PSIG. Unlike pilot-operated valves, the 455 series eliminates small pilot orifices, making it less prone to clogging from dirt or pipe scale. Installation involves the use of an external sensing line, positioned several feet downstream of the valve. By locating the sensing point beyond the valve discharge turbulence, the valve achieves more accurate downstream pressure control.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAlso Known As:\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003eDirect-acting pressure regulator, direct-acting pressure-reducing valve, spring-loaded pressure regulator, direct spring-operated regulator, mechanical pressure regulator.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e• Excellent for use in steam systems that contain excessive amounts of pipe scale and other contaminants\u003cbr\u003e• Pressure-balanced valve \u0026amp;amp; seat for more precise control of downstream pressure\u003cbr\u003e\u003cspan\u003e• Operates with minimum inlet pressure of 5 PSIG\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e• Stainless steel internal\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Watson McDaniel","offers":[{"title":"Default Title","offer_id":55233678049649,"sku":"455-12-N-51","price":1594.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0213\/7895\/7412\/files\/Driver_46_1e9d1306-ea5c-4a95-b147-68ec75d99bc1.jpg?v=1763025133","url":"https:\/\/nassaunationalcable.com\/en-ca\/products\/1-2-inch-direct-operated-pressure-regulating-valve-455-12-n-51","provider":"NassauNationalCable","version":"1.0","type":"link"}