DESCRIPTION

  • An internal spring closes valve just prior to an equalizing pressure on both sides providing a quiet and shock less valve closing
  • Designed for use with Class 125/150 flanges
  • Non-slam (spring actuated) check for water or clean fluids
  • Prevent water hammer in well pumps
  • Renewable disc
  • Replaceable drip tight resilient seat
  • Silent check valves were developed to eliminate water hammer due to water flow reversal in clear water pump applications
  • Use flat-faced metal flanges and full-face gaskets only
  • Valve opens when upstream pressure exceeds downstream pressure by 1/4 to 1/2 psi
  • Vertical or horizontal installation

FNW 125# Cast Iron Wafer Style Silent Check Valve

FNW681

Valve Size:

SPECIFICATIONS

ANSI Specifications
ANSI B16.1
API Specifications
API 598
Coating
Epoxy
End Connection 1
Wafer
End Connection 2
Wafer
End Connections
Wafer
Length
2-5/8 in
MSS Specifications
MSS SP-6
Material
Cast Iron
Maximum Pressure
200 psi
Maximum Temperature
176
NSF Certified
No
Pressure Class
125#
Recommended Valve Application
Water
Temperature Range
-4 to 176 Deg F (-20 to 80 Deg C)
UL Listed
No
Valve Body Style
Wafer
Valve Disc Material
Aluminum Bronze
Valve Seat Material
EPDM
Valve Size
2 in
Valve Type
Check Valves

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