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VFD Check Valve

  • First Center Guided Silent Check Valve specifically designed for use with a VFD
  • Product is more Hydrodynamic due to reshaping the disk
  • Same face-to-face dimensions as traditional check valves
  • Improves the Cv 38% operating at 6 FPS
  • Available in sizes 2.5″ through 12″
  • 150 lb. Class and 300 lb. Class
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VFD Check Valve Submittal

Globe Style Silent Check Valve

  • Low pressure loss
  • Providing maximum efficiency
  • Eliminates water hammer
  • 2-1/2” through 30”
  • Activated at 1/4-1/2 psi
  • Compact face-to-face
  • 125# and 250# styles
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2.5" - 10" 125# GLOBE STYLE SILENT CHECK VALVE W/ SS TRIM

2.5" - 10" 250# GLOBE STYLE SILENT CHECK VALVE W/ SS TRIM

2.5" - 12" 125# GLOBE STYLE SILENT CHECK VALVE W/ NICKEL COATED DUCTILE IRON TRIM

12" - 42" 125# GLOBE STYLE SILENT CHECK VALVE W/ SS TRIM

12" - 42" 250# GLOBE STYLE SILENT CHECK VALVE W/ SS TRIM

Wafer Style Silent Check Valve

  • Low pressure loss
  • 2” through 10”
  • Activated at 1/4-1/2 psi
  • Cast iron body and stainless steel trim
  • Compact face-to-face
  • 125# and 250# styles
3D Drawings
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GROOVED-END WAFER STYLE SILENT CHECK VALVE W/ SS TRIM

WAFER STYLE SILENT CHECK VALVE W/ NICKEL COATED DUCTILE IRON TRIM

WAFER STYLE SILENT CHECK VALVE W/ SS TRIM

FM-Approved Globe Style

  • Low pressure loss
  • Providing Maximum efficiency
  • 2-1/2” through 12”
  • Activated at 1/4-1/2 psi
  • Cast iron body and stainless steel trim
  • Compact face-to-face
  • 125# and 250# styles
3D Drawings
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FM Approved Globe Style Submittal

FM-Approved Wafer Style

  • Low pressure loss
  • 2” through 10”
  • Activated at 1/4-1/2 psi
  • Cast iron body and stainless steel trim
  • Compact face-to-face
  • 125#
3D Drawings
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FM Approved Wafer Style Submittal

Foot Valve

  • Prevents seal damage
  • Full-flow area equal to pipe size
  • Stainless steel screen
  • Screen area equal to 3 to 4 times pipe area
3D Drawings
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Foot Valve Submittal

Grooved Wafer Silent Check Valve

  • Low pressure loss
  • 2” through 10”
  • Activated at 1/4-1/2 psi
  • Cast iron body, grooved ends, stainless steel trim
  • Compact face-to-face
  • 125# and 250# styles
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Grooved Wafer Submittal

Butterfly Valve

  • Available in 2” through 12”
  • Cast iron body, DINC disc, EPDM seat
  • For shut off and balancing of systems
3D Drawings
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Butterfly Valve Submittal

CVXXK Split-Disc Check Valve

  • For all water systems
  • 2” through 20”
  • Activated at 1/4-1/2 psi
  • Cast iron body and stainless steel discs
  • Shortest possible face-to-face
3D Drawings
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CVXXK Submittal

Model BSN Bronze Check Valve

  • Sizes .5” through 2”
  • Max pressure: 125 psi
  • Max temperature: 250ºF
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Standard BSN

BSNPW


 
 
Why is my check valve chattering?

The most common reason a check valve chatters is turbulence.  Very often the turbulence is caused because the check valve is installed too close to the discharge of a pump or is just downstream of an elbow or some other turbulence causing device. Valve manufacturers, including Metraflex recommend 5-10 straight diameters of pipe directly upstream of the check valves. This allows any turbulence in the system to settle out prior to reaching the check valve. Turbulent flow will cause the disc to be loaded in a random way causing the disc to flutter and bounce.

There are two possible solutions if your check valve is chattering:

1. Move the check valve further downstream from any turbulence causing equipment.

2. Install a Vane Flex, a flex connector with built in straightening vanes, upstream of the check valve.

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