Watts 0220099 Cast Iron Y-Type Strainer 1/4 Inch

Description:

The Watts 3P847 77SI Y-Type Strainer (MPN: 0220099) is a 1/4 inch cast iron wye-pattern strainer designed to remove dirt, rust, scale, and other debris from steam and liquid piping systems to protect downstream equipment. Commonly installed in steam distribution systems, process piping, pressure regulator assemblies, boiler plants, HVAC equipment, water treatment systems, and industrial fluid handling applications. Maintenance technicians, OEMs, facility operators, and system integrators use this strainer for preventive maintenance, equipment protection, replacement projects, and new installations requiring reliable filtration and contaminant removal.

Applications:

The Watts 77SI Y-Strainer is widely used in commercial plumbing systems, industrial process piping, steam distribution networks, boiler plants, HVAC systems, manufacturing facilities, chemical processing equipment, water treatment skids, pump protection systems, pressure reducing valve installations, mechanical rooms, food and beverage processing operations, utility distribution networks, and OEM machinery. The strainer helps prevent debris from entering sensitive downstream equipment, reducing wear, minimizing maintenance requirements, 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 and liquid service applications where clean process flow is essential for efficient operation and equipment protection.

Technical Specifications:

• Manufacturer Part Number (MPN): 0220099
• Brand: Watts
• Model: 77SI / 3P847
• Product Type: Cast Iron Y-Type Strainer
• Connection Size: 1/4 in.
• Connection Type: Female NPT Threaded
• Body Pattern: Wye (Y-Pattern)
• Body Material: Cast Iron
• Retainer Cap Material: Cast Iron
• Screen Material: 304 Stainless Steel
• Screen Size: #20 Mesh
• Gasket Material: PTFE / Graphite Series Design
• Blowdown Connection: Tapped Retainer Cap
• Service Media: Steam and Compatible Liquids
• Maximum Working Pressure: 400 PSI WOG at 150°F
• Maximum Steam Pressure: 250 PSI WSP at 406°F
• Function: Debris Removal and Equipment Protection
• Installation: Inline Piping Systems
• Application: Commercial and Industrial Fluid Systems
• Service Environment: Steam, Water, and Process Piping Applications

Common Replacements:

• Watts LF777SI 1/4" Lead-Free Y-Strainer
• Apollo 61 Series 1/4" Y-Strainer
• Mueller Steam Specialty 1/4" Cast Iron Y-Strainer