Angle shut-off valve Varioterm GW1/2 x GZ1/2 straight — 1/2" connections

Straight shut-off valve Varioterm GW1/2 x GZ1/2 is a 1/2" plumbing valve designed to isolate fluid flow in heating and water systems. The valve has a straight body with one female (GW) and one male (GZ) 1/2" threaded connection, compatible with standard 1/2" fittings used in radiators, boilers and supply lines. The device provides a compact and accessible means to stop flow for maintenance, repair or system modification while maintaining a simple inline connection geometry.

Advantages

The Varioterm straight shut-off valve offers a compact footprint and straightforward installation thanks to its standard 1/2" threaded connections. Its straight design permits direct inline placement in piping runs where space and alignment favor a non-angled valve. The construction ensures reliable isolation of water or heating medium during maintenance and reduces the need to drain entire circuits. Materials and thread compatibility support use with common plumbing fittings and accessories.

Suitable for

• Isolation of radiators and convectors for maintenance or replacement
• Sectioning off supply lines to boilers and hot-water circuits
• Repair and replacement work on domestic water installations
• Integration into new or retrofitted heating and plumbing systems

Key specifications

• Connection type: one female 1/2" and one male 1/2" threaded connection
• Orientation: straight inline valve body
• Application: water and heating systems (isolation shut-off)
• Compatibility: standard 1/2" plumbing fittings
• Use environment: indoor plumbing and heating installations

How to use

Before installation, ensure the system is depressurized and water supply is shut off. Apply appropriate sealing material to the male threads if required by the installation practice, then hand-start the valve into the mating female fitting and tighten with an appropriate wrench without over-torquing. Place the valve in the closed position to isolate the downstream section while performing maintenance, then reopen gradually and check for leaks after returning the system to service. Follow local plumbing codes and safety procedures during all work.

Usage recommendations

Install the valve in accessible locations to allow future operation and inspection. Use thread sealant suitable for potable water if the valve is used in drinking-water systems, and avoid excessive torque to prevent thread or body damage. Periodically operate the valve to confirm mobility and check connections for tightness and leaks as part of regular system maintenance.