ALFA RK plumbing elbow PE female-thread 50×2 mm A-U

ALFA RK plumbing elbow PE female-thread 50×2 mm A-U is a 90° polyethylene (PE) elbow with an integrated female thread designed to connect PE piping to threaded components. The fitting provides a secure right-angle transition between PE pipework and metal or plastic threaded valves, fittings or appliances. It is intended for water supply and other low-pressure fluid systems where a threaded connection and a change of direction are required.

Advantages

The elbow combines a corrosion-resistant PE body with a precision-molded female thread to ensure reliable mechanical and hydraulic performance. Its compact 90° design simplifies installation in confined spaces and reduces the need for additional adapters. The smooth internal surface minimizes pressure loss and sediment build-up, while the durable construction supports typical service conditions for potable water and low-pressure fluids.

Suitable for

• Connecting PE pipes to threaded valves and fittings
• Domestic and commercial water distribution at low pressure
• Repair or replacement of existing PE piping systems
• Installations requiring a 90° change of direction with a threaded outlet

Key specifications

• Material: polyethylene (PE) body with female threaded interface
• Connection type: PE pipe insertion to female threaded outlet
• Nominal pipe size: 50×2 mm
• Angle: 90 degrees
• Intended pressure range: suitable for low-pressure water and fluid systems (follow applicable standards and local regulations)
• Application environment: indoor and protected outdoor plumbing installations

How to use

Prepare the PE pipe by cutting it square and deburring the end. Ensure the pipe outer diameter and wall thickness match the stated nominal size. Slide the pipe fully into the insertion end of the elbow and secure according to the system’s joining method (for example, using a mechanical compression saddle or heat-fusion technique compatible with PE fittings). Threaded components should be sealed with an appropriate thread sealant or tape and tightened to the torque recommended by the threaded component manufacturer. After assembly, inspect joints for alignment and perform a pressure test in line with local codes.

Usage recommendations

Use this elbow in systems within the manufacturer’s recommended pressure and temperature limits for PE piping. Avoid exposure to direct UV for extended periods unless protected, and do not use the fitting where high temperatures or aggressive chemicals exceed polyethylene compatibility. For reliable long-term performance, follow standard installation practices for PE systems and check threaded connections periodically for leaks.