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Condition:
Factory New
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Learn more:
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MFR:
RPI
Ships from Manufacturer
- MPN: VPV122
- Phone: (800) 221-9723
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Frequently asked questions
Is this compatible with Air Techniques CAS systems?
Yes, the RPI VPV122 is designed specifically for Air Techniques CAS 20-Gallon systems. It serves as a direct, reliable replacement for OEM part number 54139.
Is the seal material durable for long-term use?
Yes, the valve features a resilient Nitrile (Buna N) seal. This material is specifically chosen for its durability and reliability in vacuum system environments, providing effective backflow prevention.
Does it accommodate different pipe compression sizes?
Yes, it is highly versatile. It includes gaskets for both 1-1/2” and 1-1/4” pipe compression fittings, allowing it to adapt to your specific plumbing configuration seamlessly.
Is this a high-quality OEM-equivalent replacement?
It is a Factory New, OEM-equivalent replacement part. It is engineered to meet the exact specifications of the original equipment, ensuring it functions just as effectively as the part that originally came with your machine.
Why is PVC used for the valve body?
The main body is constructed from durable PVC. This material is ideal for dental vacuum environments because it offers excellent chemical resistance and structural integrity for the demands of a professional drain assembly.
Is this part critical for the drain assembly?
Yes, it is a vital component for system functionality. This valve is an essential piece of the larger Drain Assembly (RPI Part #VPA121), helping to ensure the proper drainage and vacuum suction performance of your unit.
Will I receive a brand new, unused valve?
Yes, you are guaranteed to receive a Factory New component. This ensures that the sealing mechanism and valve body are in pristine condition and ready for immediate, trouble-free installation.
What hardware is included for the installation?
The package comes complete with everything needed for a standard installation:
- Check Valve Body
- Gaskets for 1-1/2” fitting
- Gaskets for 1-1/4” fitting
You will have the correct hardware on hand without needing to source extra parts.
Is this recommended for routine system maintenance?
Yes, because it is an integral part of the drain assembly, replacing this valve is a standard maintenance step for the Air Techniques CAS 20-Gallon system. It is a proactive way to resolve or prevent issues with system suction efficiency and backflow.
Are the dimensions suitable for tight spaces?
The valve is designed with a compact profile to fit within standard vacuum drain systems:
- Diameter: 2.94 inches
- Length: 5.25 inches
These streamlined dimensions help ensure it fits properly within your system’s housing.

RPI VPV122 Check Valve (1-1/2")