4" Cast Iron Wafer Double Disc Check Valve MPN:4 71AHB3H

• This Mueller Steam Specialty 4 in cast iron wafer double disc check valve is a non-return valve for process piping. It is intended for single-direction flow and is configured to close when flow reverses. The valve features an inline wafer body design compatible with ANSI flanges, a double disc check mechanism, Buna-N seal and seat materials, and a 316 stainless steel spring. Mounting orientation: horizontal or vertical, including vertical up flow.

  Key Features:

  • 4 in nominal valve and pipe size
  • Cast iron body and cast iron check mechanism
  • Flanged wafer x flanged wafer connection
  • compatible with ANSI flanges
  • ANSI Flange Class: Class 125
  • Double disc check mechanism with single flow design
  • Maximum operating pressure: 200 psi
  • Maximum water pressure: 200 psi at 150 degrees F
  • Maximum pressure rating: 200 psi at -20 degrees F to 150 degrees F
  • 150 psi at 353 degrees F
  • Operating temperature range: -20 degrees F to 100 degrees F
  • Seal and seat material: Buna-N
  • Spring material: 316 stainless steel
  • Mounting orientation: horizontal, vertical, including vertical up flow
  • Overall dimensions: 6 7/8 in L x 2 1/2 in W x 6 7/8 in H
  • Standards: ANSI, API, FM, UL

Additional Information