Civacon | Knappco | Sure Seal

3” Aluminum Swing Check Valves

Swing Check Valves are designed for maximum flow of air or dry products with minimum pressure drop. The poppet assembly is self-aligning to assure even sealing on the raised vertical seat. The poppet assembly can be easily removed for replacement.

Check Valves
  • Features and Benefits
  • Model Numbers
  • Repair Parts
  • Downloads

Features and Benefits

 More Air Flow

    • A high flow valve means less pressure drop and faster unloading rates.
    • Less Heat Build Up
    • Due to the spherical design of the Knappco 3" Aluminum Swing Check less turbulence is created in the air stream, reduces back pressure, provides smoother air flow reducing heat build-up and wear and tear on the blower.

Through-Hole Bolts

    • Removal of Valve Cap bolts are made easier with bolt through-holes. Through-holes allow servicing of worn-out bolts without destroying the casting.

Easier to Rebuild and Service

    • Since the poppet and top lift out as a single unit all serviceable parts are easily and efficiently accessible. Field maintenance is possible without removing valve from air line.

Optional Seal Tabs-

    • To ensure load integrity.

Embossed Casting Area-

    • Provides an area to personalize each valve.

Light Weight

    • Light weight aluminum, heavy duty construction.

Reliable

    • Each valve is manufactured and tested within rigorous ISO 9001 standards and processes.

Part Numbers and Drawings

(click on the part number to view/download parts breakdown and drawing) 

Repair Parts

  • KIT-VC-311S        VC3021 Repair Kit
  • KIT-VC-312S        VC3022 Repair Kit 
  • 3-CV-A-GASKET  Cap Gasket
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Brochures • Parts Breakdown • Installation Manuals