Compression Elbow 90° AKA QK220/15 – PE 20 mm to G¾" Male Thread

AKA QK220/15 Compression Elbow 90° provides a compact right-angle transition that connects PE (polyethylene) pipe with an outer diameter of 20 mm to a G¾" male threaded fitting. Designed for plumbing and heating systems, this elbow enables a secure compression connection between plastic pipework and metal or threaded components while maintaining a low-profile installation at corners and tight spaces. The fitting is suitable for potable water installations and general building services where a reliable, tool-assisted seal is required.

Advantages

The compression elbow offers a simple, tool-friendly installation method that eliminates the need for soldering or solvent welding. Its 90° design reduces the footprint of pipe runs at corners and makes it easier to align threaded components without additional adapters. The compression connection forms a pressure-resistant joint around the PE pipe, providing leak-tight performance when installed according to recommended procedures. Materials and dimensions are chosen to be compatible with common plumbing applications, supporting potable water use and typical heating circuits.

Suitable for

• Connecting 20 mm PE pipes to G¾" threaded valves, taps or fittings
• Plumbing systems carrying potable water
• Heating and radiator connections where a compact angle fitting is required
• Retrofit or repair work where a compression-to-thread transition is needed

Key specifications

• Connection type: 90° compression to male thread
• Pipe compatibility: PE (polyethylene) with 20 mm outer diameter
• Thread size: G¾" male
• Application: potable water and general plumbing/heating systems
• Installation orientation: right-angle (90°)

How to use

Prepare the PE pipe by cutting it squarely and ensuring the end is free of burrs and debris. Slide the compression nut and ferrule (olive) onto the pipe, insert the pipe into the elbow body until it seats firmly, then hand-tighten the nut. Complete the seal by tightening the compression nut with an appropriate wrench to the torque recommended for compression fittings of this diameter, taking care not to over-tighten. Thread the male G¾" connection into the mating component using suitable thread sealant or tape on the male thread if required by the installation practice. After assembly, pressurize the system slowly and inspect the joint for leaks.

Usage recommendations

Installers should verify pipe compatibility and follow local plumbing codes. Use proper cutting and deburring tools to prepare the PE pipe and replace the ferrule if it shows wear during maintenance. Avoid excessive tightening to prevent deformation of the pipe or fitting; if sealing tape or liquid sealant is used, ensure it is compatible with potable water systems. Regularly inspect connections in heating installations to detect early signs of leakage or loosening.