Mueller Steam Specialty 791FAH Duplex Basket Strainer

Description:

The Mueller Steam Specialty / Watts 791FAH Duplex Basket Strainer is a 3 inch Class 150 cast iron strainer with a 1/16 inch perforated stainless steel basket designed to remove debris from fluid handling systems without interrupting flow during basket cleaning. Commonly installed in cooling water systems, compressor stations, condenser systems, fire protection lines, fuel systems, lubrication networks, chemical processing equipment, and industrial utility piping. Maintenance technicians, plant operators, OEMs, and system integrators use this strainer for equipment protection, preventive maintenance, replacement projects, and new installations requiring continuous operation during basket servicing.

Applications:

The Mueller Steam Specialty 791FAH Duplex Basket Strainer is widely used in industrial process piping, cooling water circulation systems, compressor installations, condenser systems, fire protection networks, fuel transfer systems, lubrication systems, saltwater and freshwater service, chemical processing plants, manufacturing facilities, pump suction applications, utility distribution systems, water treatment equipment, power generation facilities, and OEM process equipment. The duplex design allows one basket to remain in service while the other is cleaned, minimizing downtime and maintaining continuous process flow. It is commonly specified in critical industrial applications where uninterrupted operation, equipment protection, reduced maintenance costs, and improved system reliability are essential.

Technical Specifications:

• Brand: Mueller Steam Specialty / Watts
• Model: 791FAH
• Product Type: Duplex Basket Strainer
• Connection Size: 3 in.
• Pressure Class: Class 150 / Class 125 Flanged Service
• Connection Type: Flanged
• Body Material: Cast Iron
• Basket Material: 304 Stainless Steel
• Screen Type: Perforated Basket
• Mesh / Perforation Size: 1/16 in. (0.062 in.)
• Strainer Configuration: Duplex (Dual Basket)
• Service Media: Water, Fuel, Lubricants, and Compatible Fluids
• Maximum Pressure: 200 PSI at 150°F
• Maximum Pressure: 175 PSI at 250°F
• Blow-Off Port Size: 1-1/2 in.
• Function: Debris Removal and Equipment Protection
• Application: Continuous Flow Industrial Systems
• Suitable For: Pumps, Compressors, Condensers, Heat Exchangers, and Process Equipment
• Maintenance Feature: Basket Cleaning Without System Shutdown

Common Replacements:

• Mueller Steam Specialty 791MFAH-SM Smart Duplex Strainer
• Mueller Steam Specialty 792SH Duplex Strainer
• Mueller Steam Specialty 791UFA Duplex Strainer