{"product_id":"1-1-4-watson-mcdaniel-403-15-n-1409-i-piston-actuated-pressure-regulating-for-steam-gas-ductile-iron-body-double-spring-30-125-psig-internal-sensing-pilot-operated-npt","title":"1-1\/4\" Watson McDaniel 403-15-N-1409-I Piston-Actuated Pressure Regulating (For Steam \u0026 Gas), Ductile Iron Body, Double Spring, 30 - 125 PSIG Internal Sensing, Pilot-Operated, NPT","description":"\u003ch2\u003eWatson McDaniel 403-15-N-1409-I Piston-Actuated Pressure Regulating Valve, Double Spring, 30 - 125 PSIG Internal Sensing (1-1\/4\" NPT)\u003c\/h2\u003e \u003ch2\u003eFeatures:\u003c\/h2\u003e \u003cul\u003e \u003cli\u003ePilot-operated regulators minimize outlet pressure fluctuations even when load varies.\u003c\/li\u003e \u003cli\u003eInternal Sensing option (If requested, the regulator can be modified to internally sense pressure, eliminating the need for an external sensing line).\u003c\/li\u003e \u003cli\u003eDuctile Iron body to handle increased pressure and temperature.\u003c\/li\u003e \u003cli\u003eHardened stainless steel seat and disc (55 RC).\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eOptions \u0026amp; Features (See Specification Sheet For Full List):\u003c\/strong\u003e\u003c\/p\u003e \u003ch2\u003e403 Piston-Actuated Pilot-Operated (For Steam \u0026amp; Gas)\u003c\/h2\u003e \u003cp\u003eThe \u003cstrong\u003e403 Piston-Actuated Pressure Regulating\u003c\/strong\u003e are pilot-operated, piston-actuated, pressure regulators primarily used for reducing pressure in STEAM systems. These regulators can be equipped with an optional internal sensing line which simplifies installation (Suffix I). The 403 Series has all stainless steel internals for high-pressure applications up to 450 PSIG. Double Spring Option is available for wider range of reduced pressures.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSteam:\u003c\/strong\u003e The 403 Series pilot-operated (Piston-Actuated) pressure regulating valves are used for pressure reduction on steam mains and other process equipment. Piston-actuated regulators are more compact than Diaphragm-actuated regulators. The 403 Series has a Ductile Iron body but contains all stainless steel internals for high-pressure applications up to 450 PSIG.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eGas\/Air:\u003c\/strong\u003e The 403 Series pilot-operated (Piston-Actuated) pressure regulating valves are used for pressure reduction on steam mains and other process equipment. Piston-actuated regulators are more compact than Diaphragm-actuated regulators. The 403 Series has a Ductile Iron body but contains all stainless steel internals for high-pressure applications up to 450 PSIG.\u003c\/p\u003e \u003cp\u003eThe \u003cstrong\u003e403 Series Pilot-Operated\u003c\/strong\u003e (Piston-Actuated) pressure regulating valves are used for pressure reduction on steam mains and other process equipment. Pilot-operated regulators will maintain a constant and accurate downstream pressure regardless of fluctuations in supply pressure or usage. These regulators can be supplied with an optional internal sensing line which simplifies installation. Piston-actuated regulators are more compact than Diaphragm-actuated regulators. The 403 Series contains all stainless steel internals for high-pressure applications up to 450 PSIG. The Double-Spring option is available for a wider range of reduced pressures\u003c\/p\u003e \u003ch2\u003eSelection \/ Sizing \/ Capacities\u003c\/h2\u003e \u003cdiv style=\"clear: both;\"\u003e \u003cp\u003eFrom the Capacity chart, find the inlet pressure and required regulator outlet pressure. Follow across chart to nearest capacity (Steam, Air) 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. Specify Internal or External (Remote) Pressure sensing.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eExample:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eApplication: 12,500 lbs\/hr of 300 PSIG Steam reduced to 125 PSIG\u003c\/li\u003e \u003cli\u003eModel Code: 403-17-N-0010-R (2\" 403 Series Valve, 100-200 PSIG spring range, with external sensing.\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003cdiv style=\"clear: both;\"\u003e \u003c\/div\u003e \u003cdiv class=\"tech\"\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003cdiv class=\"specs\"\u003e \u003cdiv class=\"column\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eModel\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e403 Series\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eService\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eSteam \u0026amp; Air\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eSizes\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e1\/2\" - 4\"\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eConnections\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eNPT, 150# FLG, 300# FLG\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eBody Material\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eDuctile Iron\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eSeat \u0026amp; Disc\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003eHardened 420 Stainless Steel (55 Rc)\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"column\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eMax Inlet Pressure\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e450 PSIG\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eMin Inlet Pressure\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e20 PSIG\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eMax Differential Pressure\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e250 PSI\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003eMin Differential Pressure\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e15% of Inlet Pressure (10 PSI min)\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"left\"\u003ePart Number\u003c\/div\u003e \u003cdiv class=\"right\"\u003e \u003cdiv\u003e403-15-N-1409-I\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \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-403-Series-Pilot-Operated-Piston-Actuated-Pressure-Regulating-Valves-Spec-Sheet.pdf?v=1786495548\"\u003eView Technical Specification Sheet Here\u003c\/a\u003e\u003c\/h2\u003e","brand":"Watson McDaniel","offers":[{"title":"Default Title","offer_id":44166128402510,"sku":"403-15-N-1409-I","price":3207.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/4576\/4430\/files\/Watson-McDaniel-403-Series-Pilot-Operated-Piston-Actuated-Pressure-Regulating-Valves__34218.1784300368.1280.1280.jpg?v=1786667441","url":"https:\/\/valveman.com\/products\/1-1-4-watson-mcdaniel-403-15-n-1409-i-piston-actuated-pressure-regulating-for-steam-gas-ductile-iron-body-double-spring-30-125-psig-internal-sensing-pilot-operated-npt","provider":"ValveMan","version":"1.0","type":"link"}