FNW 125# Cast Iron Wafer Style Silent Check Valve
FNW681
Valve Size
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
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
DOCUMENTS
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