{"product_id":"watson-mcdaniel-o-12-n-14-b-steam-pressure-regulator","title":"Watson Mcdaniel O-12-N-14-B Steam Pressure Regulator","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WATSON MCDANIEL O-12-N-14-B is a direct-operated pressure regulator designed for steam service. It automatically reduces and maintains downstream steam pressure without requiring an external pilot or power source, making it a reliable choice for mechanical rooms, process lines, and building heating systems. The body is constructed from cast iron, providing durability in demanding steam environments. The internal trim uses phosphor bronze components suited for steam compatibility. The regulator handles an outlet pressure range of 10 to 50 PSIG and connects via a 0.5 inch NPT port. Licensed plumbers, pipefitters, and steam system technicians are the typical installers.\u003c\/p\u003e\u003cp\u003eThis regulator is applied in residential and commercial steam heating systems as well as light industrial process steam lines. The direct-operated design suits applications where a compact, self-contained pressure-reducing station is needed. The 0.5 inch NPT connection accommodates smaller branch lines and service drops. The 10 to 50 PSIG control range covers low-pressure steam heating and many general-purpose process steam applications where a stable reduced pressure must be maintained downstream of a higher-pressure supply.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDirect-operated design requires no external pilot line or power source\u003c\/li\u003e\n\u003cli\u003eCast iron body rated for steam service conditions\u003c\/li\u003e\n\u003cli\u003ePhosphor bronze internal trim for steam-compatible construction\u003c\/li\u003e\n\u003cli\u003e0.5 inch NPT connection for straightforward inline installation\u003c\/li\u003e\n\u003cli\u003eOutlet pressure range of 10 to 50 PSIG for low-pressure steam control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style direct-operated pressure regulator for low-pressure steam piping systems using 0.5 inch NPT connections.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed pipefitter or steam system technician in accordance with applicable mechanical codes. Isolate and fully depressurize the steam line before installation and confirm the system is at ambient temperature before handling any fittings. Install the regulator in the correct flow direction as indicated by the arrow on the body, and use appropriate thread sealant rated for steam service on all NPT connections. After installation, bring system pressure up gradually and verify downstream pressure with a calibrated gauge before returning the system to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Size\u003c\/strong\u003e: 0.5 inches NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Pressure Range\u003c\/strong\u003e: 10 to 50 PSIG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim Material\u003c\/strong\u003e: Phosphor Bronze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation Type\u003c\/strong\u003e: Direct-Operated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia\u003c\/strong\u003e: Steam\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WATSON MCDANIEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: O-12-N-14-B\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WATSON MCDANIEL","offers":[{"title":"Default Title","offer_id":51523435561266,"sku":"O-12-N-14-B","price":433.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dc55f61a7a5d2ae105f7a2963eab50f8.jpg?v=1785442184","url":"https:\/\/voomisupply.com\/products\/watson-mcdaniel-o-12-n-14-b-steam-pressure-regulator","provider":"Voomi Supply","version":"1.0","type":"link"}