Wall-mounted press-fit elbow SiGMA-Li 1/2 x 20, H-40, model MKNW2012

Wall-mounted press-fit elbow SiGMA-Li 1/2 x 20, H-40, model MKNW2012 is a compact angled connector designed for plumbing and heating installations that require a precise offset. The fitting provides a sealed, solder-free joint between press-fit compatible pipes and wall fixtures, enabling a tidy transition where a 40 mm offset (H-40) is needed. Constructed for use with 1/2 inch x 20 mm press piping, the elbow suits installations that demand reliable mechanical and hydraulic performance while minimizing assembly time.

Advantages

The press-fit design ensures a consistent, leak-resistant connection without the need for flame or solder, reducing installation risk and time. Its wall-mounted configuration with defined H-40 offset simplifies alignment with fixtures and concealed pipe routing. The compact elbow profile saves space in tight cavities and behind wall panels. Materials and manufacturing meet typical industry requirements for durability and compatibility with standard press tools and rings.

Suitable for

• Plumbing installations behind wall fixtures where a 40 mm offset is required
• Domestic and commercial heating systems using press-fit piping
• Retrofitting or new builds that require solder-free, mechanical joints
• Tight installation spaces where a compact angled connector is needed

Key specifications

• Connection type: press-fit elbow for press-compatible pipes
• Size: 1/2 inch x 20 mm
• Offset (H): 40 mm
• Mounting style: wall-mounted configuration
• Angle: 90-degree elbow
• Application: plumbing and heating systems

How to use

Confirm pipe compatibility and prepare the pipe end by cutting square and deburring to the recommended dimensions for press connections. Insert the pipe fully into the press-fit socket until it reaches the stop, ensuring the H-40 offset aligns with the fixture or wall outlet position. Use a compatible press tool and the correct jaw or ring for the pipe diameter to execute the press operation according to the tool manufacturer’s instructions. After pressing, verify the joint visually and perform a pressure test in line with applicable installation standards.

Usage recommendations

Use certified press tools and matching press jaws for 1/2 x 20 mm fittings; follow local plumbing codes and pressure testing procedures. Avoid applying heat or solder to press-fit joints. Inspect the seating and press marks after installation and protect the fitting from corrosive environments or mechanical damage during construction.