Swing Check Valve
Aluminum Swing Check Valve
Swing Check Valves are designed for maximum flow of air or dry products with minimal 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.
Features & 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, and reduces heat build-up and wear and tear on the blower.
- Through-Hole Bolts – Removal of Valve Cap bolts is made easier with bolt through-holes. Through-holes allow servicing of worn-out bolts without destroying the casting.
- Easier to Rebuild and Service – The poppet and top lift out as a single unit, allowing serviceable parts to be easily and efficiently accessible. Field maintenance is possible without removing the valve from the air line.
- Optional Seal Tabs – To ensure load integrity.
- Embossed Casting Area – Provides an area to personalize each valve.
- Light Weight – Aluminum, heavy-duty construction.
Part Numbers
| Part Number | Description |
| VA0006 | 2" Alum. Check Valve, Buna-N Poppet w/ Spring |
| VC3011FG | 3" Alum. Check Valve, EPDM Poppet, White Neoprene Gasket w/o Spring |
| VC3012 | 3" Alum. Check Valve, Silicone Poppet, White Neoprene Gasket w/o Spring |
| VC3021 | 3" Alum. Check Valve, EPDM Poppet, White Neoprene Gasket w/ Spring |
| VC3022 | 3" Alum. Check Valve, Silicone Poppet, White Neoprene Gasket w/ Spring |
| KIT-VC-311S | 3" Check Valve Repair Kit - EPDM |
| KIT-VC-312S | 3" Check Valve Repair Kit - Silicone |
Repair Parts
| Part Number | Description |
| 3-CV-A-GASKET | Lid Gasket |
| 3-CV-BUSHING | Teflon Bushing |
| 3-CV-PIN-L | .245" x 1.195" SS Pin Left |
| 3-CV-PIN-R | .245" x 1.195" SS Pin Right |
| 3-CV-SPG-L | 17-7 Spring Left |
| 3-CV-SPG-R | 17-7 Spring Right |
| 12419 | 1/4-20 x 7/8" SS Screw |
| H20312M | 1/4" Washer |
| H50086M | 1/4" 18-8 Lock Washer |
-
3in Aluminum Swing Check Valve Data Sheet
Animation: Chemical Process
Features & 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, and reduces heat build-up and wear and tear on the blower.
- Through-Hole Bolts – Removal of Valve Cap bolts is made easier with bolt through-holes. Through-holes allow servicing of worn-out bolts without destroying the casting.
- Easier to Rebuild and Service – The poppet and top lift out as a single unit, allowing serviceable parts to be easily and efficiently accessible. Field maintenance is possible without removing the valve from the air line.
- Optional Seal Tabs – To ensure load integrity.
- Embossed Casting Area – Provides an area to personalize each valve.
- Light Weight – Aluminum, heavy-duty construction.
Part Numbers
| Part Number | Description |
| VA0006 | 2" Alum. Check Valve, Buna-N Poppet w/ Spring |
| VC3011FG | 3" Alum. Check Valve, EPDM Poppet, White Neoprene Gasket w/o Spring |
| VC3012 | 3" Alum. Check Valve, Silicone Poppet, White Neoprene Gasket w/o Spring |
| VC3021 | 3" Alum. Check Valve, EPDM Poppet, White Neoprene Gasket w/ Spring |
| VC3022 | 3" Alum. Check Valve, Silicone Poppet, White Neoprene Gasket w/ Spring |
| KIT-VC-311S | 3" Check Valve Repair Kit - EPDM |
| KIT-VC-312S | 3" Check Valve Repair Kit - Silicone |
Repair Parts
| Part Number | Description |
| 3-CV-A-GASKET | Lid Gasket |
| 3-CV-BUSHING | Teflon Bushing |
| 3-CV-PIN-L | .245" x 1.195" SS Pin Left |
| 3-CV-PIN-R | .245" x 1.195" SS Pin Right |
| 3-CV-SPG-L | 17-7 Spring Left |
| 3-CV-SPG-R | 17-7 Spring Right |
| 12419 | 1/4-20 x 7/8" SS Screw |
| H20312M | 1/4" Washer |
| H50086M | 1/4" 18-8 Lock Washer |
-
3in Aluminum Swing Check Valve Data Sheet
Animation: Chemical Process
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