MenaMech Pump Manufacturing

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OS&Y Gate Valve

UL/FM-approved

Designed for large-diameter piping systems, offering reliable shut-off and long service life

These OS&Y Resilient Seated Gate Valves (14”-24”) are engineered to meet UL and FM requirements and built in accordance with AWWA C515 standards. They feature a heavy-duty design with graphite stem sealing, NPT body plug, and ANSI B16.1 Class 125 flanged ends. With working pressures up to 250 PSI, they are ideal for large-scale fire protection systems. Internal and external surfaces are fusion bonded epoxy coated to AWWA C550 standards for enhanced corrosion resistance. Installation orientation varies by piping direction to maintain optimal valve function.

Resilient Wedge OS&Y Gate Valve - Grooved End
Resilient Wedge OS & Y Gate Valve-Flanged End

Specifications:

  • Size Range: 14″ – 24″

  • Pressure Rating:

    • 250 PSI for 14″–16″–18″

    • 200 PSI for 20″–24″

  • Working Temperature: 42°F to 180°F

  • Flange Standard: ANSI B16.1 Class 125

  • Corrosion Protection: FBE coating per AWWA C550

  • Compliance: UL Listed, FM Approved (as noted)

  • Installation:

    • Horizontal pipe – stem vertical

    • Vertical pipe – stem horizontal

Product Catalogue
UL Listing
FM Approval

Features

  • UL Listed (14″–24″) and FM Approved (14″–16″)

  • Compliant with AWWA C515 standard

  • Heavy-duty handwheel with secure attachment nut

  • Graphite stem seal for durability

  • Fusion bonded epoxy coating per AWWA C550

  • ANSI B16.1 Class 125 flanged ends

  • Orientation guidelines for horizontal and vertical installations

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