{"product_id":"watts-3p851-77si-1-inch-y-type-cast-iron-strainer","title":"WATTS 3P851 77SI 1 INCH Y-TYPE CAST IRON STRAINER","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"709\"\u003eThe Watts 3P851 77SI Y-Type Strainer is a 1 inch cast iron wye-pattern strainer designed to remove dirt, rust, scale, weld slag, and other pipeline debris from fluid and steam systems to protect downstream equipment from damage and premature wear. Commonly installed in steam distribution systems, boiler plants, process piping networks, HVAC systems, pressure regulator stations, water treatment equipment, and industrial fluid handling applications. Maintenance technicians, facility engineers, OEMs, and system integrators use this strainer for preventive maintenance, equipment protection, replacement projects, and new installations requiring reliable filtration and contaminant removal.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"711\" data-end=\"728\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"729\" data-end=\"1641\"\u003eThe Watts 77SI Y-Type Strainer is widely used in commercial plumbing systems, industrial process piping, steam distribution networks, boiler rooms, HVAC systems, manufacturing facilities, chemical processing plants, food and beverage processing equipment, water treatment skids, pump protection systems, pressure reducing valve installations, mechanical rooms, district heating systems, utility distribution networks, and OEM machinery. The strainer helps prevent contaminants from entering sensitive downstream equipment, reducing wear, minimizing maintenance costs, improving system reliability, and extending the service life of pumps, regulators, control valves, meters, heat exchangers, and instrumentation devices. It is commonly specified in steam, water, oil, and process fluid applications where clean flow and equipment protection are essential for efficient operation and long-term system performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1643\" data-end=\"1672\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1673\" data-end=\"2462\"\u003e• Manufacturer Part Number (MPN): 3P851\u003cbr data-start=\"1712\" data-end=\"1715\"\u003e• Brand: Watts\u003cbr data-start=\"1729\" data-end=\"1732\"\u003e• Model: 77SI\u003cbr data-start=\"1745\" data-end=\"1748\"\u003e• Product Type: Cast Iron Y-Type Strainer\u003cbr data-start=\"1789\" data-end=\"1792\"\u003e• Connection Size: 1 in.\u003cbr data-start=\"1816\" data-end=\"1819\"\u003e• Connection Type: Female NPT Threaded\u003cbr data-start=\"1857\" data-end=\"1860\"\u003e• Body Pattern: Wye (Y-Pattern)\u003cbr data-start=\"1891\" data-end=\"1894\"\u003e• Body Material: Cast Iron\u003cbr data-start=\"1920\" data-end=\"1923\"\u003e• Retainer Cap Material: Cast Iron\u003cbr data-start=\"1957\" data-end=\"1960\"\u003e• Screen Material: Stainless Steel\u003cbr data-start=\"1994\" data-end=\"1997\"\u003e• Strainer Type: Inline Y-Strainer\u003cbr data-start=\"2031\" data-end=\"2034\"\u003e• Service Media: Water, Steam, Air, Oil, and Compatible Fluids\u003cbr data-start=\"2096\" data-end=\"2099\"\u003e• Function: Removal of Dirt, Scale, Rust, and Pipeline Debris\u003cbr data-start=\"2160\" data-end=\"2163\"\u003e• Installation: Inline Piping Systems\u003cbr data-start=\"2200\" data-end=\"2203\"\u003e• Application: Commercial and Industrial Fluid Systems\u003cbr data-start=\"2257\" data-end=\"2260\"\u003e• Maintenance Type: Cleanable and Serviceable Design\u003cbr data-start=\"2312\" data-end=\"2315\"\u003e• Suitable For: Pumps, Valves, Regulators, Meters, and Process Equipment\u003cbr data-start=\"2387\" data-end=\"2390\"\u003e• Service Environment: Steam, Water, and Industrial Process Applications\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2464\" data-end=\"2488\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2489\" data-end=\"2615\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Watts LF777SI 1\" Lead-Free Y-Strainer\u003cbr data-start=\"2528\" data-end=\"2531\"\u003e• Apollo 61 Series 1\" Y-Strainer\u003cbr data-start=\"2563\" data-end=\"2566\"\u003e• Mueller Steam Specialty 1\" Cast Iron Y-Strainer\u003c\/p\u003e","brand":"WATTS","offers":[{"title":"New","offer_id":51731234357550,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_451c0727-2fbc-4ee7-89e6-13a13871c935.jpg?v=1770595757","url":"https:\/\/plgautomation.com\/products\/watts-3p851-77si-1-inch-y-type-cast-iron-strainer","provider":"PLG Automation ","version":"1.0","type":"link"}