Compression fitting Uponor S-Press with internal thread 32 Rp1 1/4FT (DWZ) (PWE)

Uponor S-Press compression fitting with internal thread 32 Rp1 1/4FT (DWZ) (PWE) is a pressed plumbing connector designed for joining plastic piping in heating and sanitary systems. The fitting combines a mechanical pressed connection for plastic pipe with an integrated internal Rp1 1/4 thread, allowing secure attachment of valves, adapters or other threaded accessories. It is intended for installations where a reliable, leak-resistant transition between press connections and threaded components is required.

Advantages

The S-Press compression fitting provides a durable pressed seal that reduces the need for additional sealants when connecting plastic pipes. Integration of an internal thread simplifies installation of valves and accessories without additional fittings. The design supports consistent, repeatable joints when installed with compatible press tools and rings, and the fitting materials are selected for compatibility with common heating and sanitary plastics.

Suitable for

• Joining plastic supply lines in heating systems.
• Connecting sanitary piping to threaded valves and fixtures.
• Professional plumbing installations in residential and commercial buildings.
• Retrofit projects where a press-to-thread transition is required.

Key specifications

• Connection type: press (compression) joint to plastic pipe with integrated internal thread.
• Internal thread size: Rp 1 1/4 (female).
• Pipe compatibility: plastic piping systems used in heating and sanitary applications.
• Material compatibility: components suitable for contact with common heating and sanitary plastics; designed for press installation.
• Application area: heating and sanitary installations where press connections are used.

How to use

Prepare the plastic pipe by cutting square and deburring the end according to the pipe manufacturer's recommendations. Slide the press sleeve or ring as required, insert the pipe fully into the fitting until the correct stop is reached, then apply a compatible pressing tool to form the permanent pressed joint. After pressing, attach the required valve or accessory to the internal Rp1 1/4 thread, using appropriate thread sealing methods if recommended for the specific accessory. Follow the installation instructions of both the pipe system and the press tool manufacturer for correct press profiles and procedures.

Usage recommendations

Use only compatible press tools, jaws and rings specified for Uponor S-Press fittings and the specific pipe material. Verify the pipe type, wall thickness and press profile before installation. Ensure thread sealing methods (such as shared thread tape or approved sealants) are appropriate for the connected valve or accessory and for potable water or heating systems as required by local codes.