IFAN Customizable PEX-EVOH Pipes

Yes, with all standard PEX fitting types

PEX-EVOH pipes work with all common PEX fitting systems. The outer diameter is identical to standard PEX. The EVOH layer does not change the pipe’s dimensions. Example: crimp, clamp, push-fit, and compression all work.

Crimp fittings are compatible

Crimp fittings use a ring that compresses onto the pipe. The EVOH layer is inside the pipe wall. The crimp ring grips the outer PEX layer. PEX-EVOH pipes accept standard crimp connections perfectly.

Clamp (cinch) fittings also work

Clamp fittings use a stainless steel ring with a tool. The ring cinches around the pipe outer surface. The EVOH layer is not affected by the clamping force. Cross-linked Polyethylene – Ethylene Vinyl Alcohol Copolymer pipes are fully compatible with clamp fittings.

Push-fit fittings work well

Push-fit fittings have internal teeth that grip the pipe. The O-ring seals on the outer surface. The EVOH layer does not interfere with either mechanism. Cross-linked Polyethylene – Ethylene Vinyl Alcohol Copolymer pipes connect to push-fit fittings without issues.

Compression fittings are compatible

Compression fittings use a nut and ferrule to seal. The ferrule compresses onto the pipe’s outer layer. The EVOH layer is protected inside the pipe wall. Cross-linked Polyethylene – Ethylene Vinyl Alcohol Copolymer pipes work with standard compression fittings.

Example: mixed fitting types in one system

A heating system has crimp fittings at the manifold. The same pipe uses push-fit at the radiator. Cross-linked Polyethylene – Ethylene Vinyl Alcohol Copolymer pipes connect seamlessly with both types. Example: no special fittings are needed.

Example: repair with different fittings

A PEX-EVOH pipe needs repair in a tight space. The plumber uses a compression fitting for the fix. Cross-linked Polyethylene – Ethylene Vinyl Alcohol Copolymer pipes accept the compression repair easily. Example: flexibility in choosing repair methods.

The EVOH layer is protected

The EVOH barrier is between outer and inner PEX layers. It is not exposed during fitting installation. Crimping and clamping do not damage the barrier. PEX-EVOH pipes retain their oxygen barrier after connections.

Installation tools are identical

The same crimp, clamp, and compression tools work. No special tools are required for PEX-EVOH pipes. PEX-EVOH pipes use standard PEX installation tooling.

What to avoid: PEX-AL-PEX fittings

PEX-AL-PEX pipes have different outer diameters. Their fittings are not compatible with PEX-EVOH. PEX-EVOH pipes must use standard PEX fittings only.

Example: commercial building installation

A commercial building uses PEX-EVOH pipes for heating. The contractor uses both crimp and compression fittings. Cross-linked Polyethylene – Ethylene Vinyl Alcohol Copolymer pipes accept all fitting types without issues.

Final compatibility summary

Cross-linked Polyethylene – Ethylene Vinyl Alcohol Copolymer pipes are compatible with all standard PEX fittings. Crimp, clamp, push-fit, and compression all work. The EVOH layer does not affect fitting compatibility. The same tools are used as for standard PEX. Do not use PEX-AL-PEX fittings. Example: the most versatile pipe for any fitting system.

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