{"product_id":"1-1-2-watson-mcdaniel-455-16-n-62-direct-operated-pressure-regulating-valve-for-steam-stainless-steel-body-15-45-psig-viton-diaphragm-npt","title":"1-1\/2\" Watson McDaniel 455-16-N-62 Direct-Operated Pressure Regulating Valve (For Steam), Stainless Steel Body, 15 - 45 PSIG, Viton Diaphragm, NPT","description":"\u003ch2\u003eWatson McDaniel 455-16-N-62 Direct-Operated Pressure Regulator, 15 - 45 PSIG For Steam (1-1\/2\" NPT)\u003c\/h2\u003e\u003ch2\u003eFeatures:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOperates with minimum inlet pressure of 5 PSIG.\u003c\/li\u003e\n\u003cli\u003eStainless Steel Internals\u003c\/li\u003e\n\u003cli\u003eExcellent for use in steam systems that contain excessive amounts of pipe scale and other contaminants.\u003c\/li\u003e\n\u003cli\u003ePressure balanced valve \u0026amp; seat for more precise control of downstream pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOptions \u0026amp; Features (See Specification Sheet For Full List):\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e455 Direct-Operated Pressure Regulating Valves (For Steam)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e455-Series Direct-Operated Pressure Regulator\u003c\/strong\u003e is ideally suited for reducing pressure in steam applications and requires only 5 PSIG minimum inlet pressure. Recommended for use in steam systems that contain excessive amounts of pipe scale and other contaminants that may cause failure in pilot-operated regulators.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSteam:\u003c\/strong\u003e The 455-Series, available with Bronze and Cast Iron bodies, are ideally suited for reducing pressure in STEAM applications and requires only 5 PSIG minimum inlet pressure. Excellent for use in steam systems that contain large amounts of scale that may cause failure in pilot-operated regulators.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003e455 Series Direct-Operated Pressure Regulating Valves\u003c\/strong\u003e are used for pressure reduction applications on steam, air and other gases. Balanced seat and disc design allows these valves to be used in applications with low inlet pressure; down to 5 PSIG. Unlike pilot-operated valves, the 455 does not contain any small pilot orifices and are therefore less susceptible to issues caused by dirt and pipe scale. The 455-Series is installed using an external sensing line which is connected several feet downstream of the valve. Placing the pressure sensing location out of range of valve discharge turbulence makes it more accurate in controlling downstream pressure.\u003c\/p\u003e\u003ch2\u003eControlling Pressure\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e455-Series\u003c\/strong\u003e reduces downstream pressure of steam, air, or other gases. The 455-Series is installed using an external sensing line which is connected several feet downstream of the valve outlet. Downstream pressure is set by turning an adjustment screw that increases or decreases spring force on a diaphragm. The downstream pressure applies a force to the diaphragm to compress the adjustment spring. When the system pressure equals the set point, the diaphragm moves downward against the adjustment spring force closing the valve.\u003c\/p\u003e\u003ch2\u003eDesign Features\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e455-Series\u003c\/strong\u003e features a rugged stainless steel balanced seat and disc design allowing these valves to be used in applications with low inlet pressure; down to 5 PSIG. The 455-Series does not contain any small pilot orifices and are therefore less susceptible to issues caused by dirt and pipe scale, that may adversely effect pilot-operated regulators.\u003c\/p\u003e\u003ch2\u003eSelection \/ Sizing \/ Capacities\u003c\/h2\u003e\u003cdiv style=\"clear: both;\"\u003e\n\u003cp\u003eFrom the Capacity chart, find the inlet pressure and required regulator outlet pressure. Follow across chart to nearest capacity (steam) that meets or slightly exceeds demand requirements. Follow vertically up to determine appropriate size. When exact application values are not shown, interpolate between values. From the spring range chart, select the spring range that accommodates the required outlet set pressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExample:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApplication: 1000 lbs\/hr of 20 PSIG Steam reduced to 5 PSIG.\u003c\/li\u003e\n\u003cli\u003eModel Code: 455-16-N-65 (455-Series, 11\/2\" NPT, 1-6 PSIG Spring Range)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv style=\"clear: both;\"\u003e \u003c\/div\u003e\u003cdiv class=\"tech\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"specs\"\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eModel\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e455 Series\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eService\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eSteam, Water, Air \u0026amp; Other Gases\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e1\/2\" - 4\"\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eConnections\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eNPT, 125# FLG, 250# FLG\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eBody Material\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\n\u003cdiv\u003e1\/2\"- 2\" SS Body\/Brass Stuffing Box\u003c\/div\u003e\n\u003cdiv\u003e21\/2\"- 4\" Cast Iron\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eSeat \u0026amp; Disc\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eStainless Steel\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eDiaphragm\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eViton\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eMax Inlet Pressure\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e250 PSIG\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eMin Inlet Pressure\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e5 PSIG\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eMax Differential Pressure\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e125 PSI\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eMin Differential Pressure\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e20% of Inlet Pressure\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eDesign Pressure\/Temperature Rating – PMA\/TMA\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\n\u003cdiv\u003eNPT 250 PSIG @ 400°F\u003c\/div\u003e\n\u003cdiv\u003e125# FLG 125 PSIG @ 450°F\u003c\/div\u003e\n\u003cdiv\u003e250# FLG 250 PSIG @ 450°F\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003ePart Number\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e455-16-N-62\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv style=\"clear: both;\"\u003e \u003c\/div\u003e\u003ch2\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0721\/4576\/4430\/files\/Watson-McDaniel-455-Series-Direct-Operated-Pressure-Regulator-Spec-Sheet.pdf?v=1786495606\"\u003eView Technical Specification Sheet Here\u003c\/a\u003e\u003c\/h2\u003e","brand":"Watson McDaniel","offers":[{"title":"Default Title","offer_id":44166135382094,"sku":"455-16-N-62","price":2399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/4576\/4430\/files\/Watson-McDaniel-455-Series-Direct-Operated-Pressure-Regulator__81445.1784300216.1280.1280.jpg?v=1786667678","url":"https:\/\/valveman.com\/products\/1-1-2-watson-mcdaniel-455-16-n-62-direct-operated-pressure-regulating-valve-for-steam-stainless-steel-body-15-45-psig-viton-diaphragm-npt","provider":"ValveMan","version":"1.0","type":"link"}