4" Aluminum Vapor Recovery Coupler w/Probe x Hose Shank

The Dixon 400-CVR-AL combines a 4" vapor recovery coupler with a 4" hose shank in one dedicated assembly. This configuration provides a direct connection between compatible vapor recovery equipment and a properly selected 4" vapor recovery hose.

Confirm both connection sizes before installation because the coupler and hose shank serve different portions of the recovery system. The coupler should match the mating vapor connection while the shank should match the hose and attachment method.

The 400-CVR-AL uses a 356T6 aluminum body combined with bronze cam arms and stainless steel arm pins. This construction provides a durable vapor recovery assembly for compatible petroleum transfer equipment.

Inspect the body, cam arms, pins, probe, and hose shank before installation. Deformation, excessive wear, contamination, or damaged connection surfaces should be addressed before the coupling is placed into service.

The coupler uses a nitrile rubber gasket to provide the sealing interface at the vapor recovery connection. The integrated probe is part of the dedicated recovery configuration and distinguishes the assembly from a standard liquid-service cam and groove coupling.

Inspect the gasket for cuts, flattening, contamination, or deterioration before connecting the coupler. The probe should also be checked for damage or obstruction so the assembly can properly interface with compatible vapor recovery equipment.

The 400-CVR-AL is designed specifically for petroleum vapor recovery applications rather than general liquid transfer. The coupler should remain dedicated to compatible vapor recovery hose systems and properly matched equipment.

Verify the application, mating connection, hose size, gasket condition, and attachment method before installation. Correct component selection helps maintain the intended vapor recovery system configuration throughout service.