Drain and Air Vent Valve KAN-therm 1/2" model 10612

The KAN-therm Drain and Air Vent Valve 1/2" model 10612 is a compact valve for manual draining and venting of plumbing and heating installations. Designed to be fitted into residential and light commercial HVAC and water systems, it enables controlled removal of trapped air and emptying of pipe sections during maintenance, repairs or seasonal winterization. The valve is intended to simplify service operations and reduce the risk of damage caused by airlocks or residual water in the piping.

Advantages

This KAN-therm valve offers a straightforward, mechanical solution for bleeding air and draining sections of a system without requiring power. Its 1/2" connection size matches common piping and fittings used in domestic and small commercial installations, allowing easy integration. The valve is built for reliable manual operation and gives visible, tactile control when releasing air or water, which supports safer and faster maintenance procedures.

Suitable for

• Draining radiator loops and small heating circuits
• Removing trapped air from domestic hot water and heating systems
• Winterization of seasonal systems and frost protection
• Isolating and emptying sections during repair or replacement of components

Key specifications

• Connection size: 1/2" compatible with standard fittings
• Function: manual drain and air vent
• Application: plumbing and heating installations in residential and light commercial buildings
• Operation: manual actuation for controlled release of air and water
• Installation orientation: suitable for inline mounting where access for manual operation is available

How to use

Install the valve into the piping at a high point for air venting or at a low point for draining depending on the intended use. Ensure the system is isolated and pressure is relieved before starting work. To vent air, open the valve slowly until air is expelled and a steady flow of water appears, then close. To drain a section, open the valve fully and direct discharged water to an appropriate drain or container. After maintenance, close the valve and restore the system to operating pressure, checking for leaks around the connection.

Usage recommendations

Use the valve with compatible fittings and ensure proper sealing at the connection. Perform periodic checks during seasonal changes and after repairs to confirm the valve operates freely and does not leak. If installed in exposed locations, protect from freezing and mechanical damage.