Dixon
4" Aluminum Vapor Recovery Coupler w/Probe x 2" Hose Shank
- SKU:
- NLDIX4020CVRAL
- Availability:
- Limited quantity available.
- Weight:
- 2.50 LBS
Description
4" Aluminum Vapor Recovery Coupler w/Probe x 2" Hose Shank
4" Aluminum Vapor Recovery Coupler w/Probe x 2" Hose Shank provides a dedicated connection for compatible petroleum vapor recovery hose assemblies.
Constructed from 356T6 aluminum, the Dixon 4020-CVR-AL combines a 4" vapor recovery coupler with a 2" hose shank and integral probe. The assembly uses a nitrile rubber gasket with bronze cam arms and stainless steel arm pins.
Product Highlights
Aluminum vapor recovery coupler designed to connect compatible 4" equipment to a 2" vapor recovery hose.
The 4020-CVR-AL includes an integral probe, nitrile gasket, and bronze cam arms for vapor service.
Technical Specifications
Vapor Recovery Connection Configuration
The 4" female coupler connects to compatible vapor recovery equipment, with an integral probe provided as part of the vapor recovery configuration.
The opposite end provides a 2" hose shank for connection to properly selected vapor recovery hose and compatible attachment hardware.
Vapor Recovery Coupler Design
The Dixon 4020-CVR-AL combines a 4" vapor recovery coupler with a reduced 2" hose shank in one dedicated assembly. This configuration provides a direct transition between compatible vapor recovery equipment and a properly selected 2" vapor hose.
Confirm both nominal connection sizes before installation because the coupler and hose shank serve different portions of the recovery system. The 4" coupler should match the mating vapor connection, while the 2" shank should match the hose and attachment method.
The 4020-CVR-AL uses a 356T6 aluminum body combined with bronze cam arms, stainless steel arm pins, and plated carbon steel finger rings. This component combination is designed specifically for compatible petroleum vapor recovery assemblies.
Inspect the body, cam arms, pins, finger rings, and hose shank before installation for deformation, contamination, or visible damage. Worn or damaged components can interfere with proper engagement and should be addressed before placing the assembly into service.
A nitrile rubber gasket provides the sealing interface at the female vapor recovery connection, while the integral probe is included as part of the coupler assembly. Dixon identifies the 4020-CVR-AL as a probe-equipped configuration without a poppet valve.
Inspect the gasket for cuts, flattening, contamination, or deterioration before making the connection. The probe should also be checked for damage or obstruction so the coupler can properly interface with compatible vapor recovery equipment.
Dixon specifies the 4020-CVR-AL for vapor recovery service rather than liquid transfer. The coupler is compatible with gasoline and diesel vapor applications, including fuels up to E100 and B20 biofuel blends as specified by Dixon.
Verify the application, mating vapor equipment, hose size, gasket condition, and attachment method before installation. The fitting should remain dedicated to its intended vapor recovery function and should not be substituted for a liquid-service coupling.
Installation & Selection Considerations
Confirm the 4" coupler size.
Verify the 2" hose shank.
Inspect the nitrile gasket.
Check the integral probe.
Use for vapor recovery only.
Our product specialists can help review coupler size, hose shank size, probe configuration, gasket material, and vapor recovery system compatibility before you order.
Frequently Asked Questions
What is the Dixon 4020-CVR-AL?
The 4020-CVR-AL is a 4" aluminum vapor recovery coupler with a 2" hose shank and integral probe.
What material is the coupler made from?
Dixon specifies a 356T6 aluminum body with bronze cam arms and stainless steel arm pins.
What gasket is used in the coupler?
The 4020-CVR-AL uses a nitrile rubber gasket at the female vapor recovery connection.
Does the 4020-CVR-AL include a probe?
Yes. A probe is included as part of the Dixon 4020-CVR-AL vapor recovery coupler assembly.
Does this vapor recovery coupler have a poppet?
No. Dixon identifies the 4020-CVR-AL as a probe-equipped 4" x 2" vapor recovery coupler without a poppet valve.
Can the 4020-CVR-AL be used for liquid service?
No. Dixon specifies this coupler for vapor recovery only and states that it is not intended for liquid service.
Important Ordering & Installation Notes
- Verify Dixon part number 4020-CVR-AL.
- Confirm the 4" coupler size.
- Verify the 2" hose shank.
- Confirm nitrile rubber sealing.
- Verify the integral probe.
- Inspect the coupler before installation.
- Check the gasket and cam arms.
- Use compatible vapor recovery hose.
- Do not use for liquid transfer service.
- Verify the assembly before operation.
