Angle Valve Set ARCO Teide Plus KCM18 — 1/2"F (Supply and Return, Metal Nut)

ARCO Teide Plus KCM18 angle valve set includes a supply (feeding) valve and a return valve with metal nut, designed for 1/2"F connections. The set is intended for installation on heating and plumbing circuits to control flow to radiators, convectors or other fixtures. Each valve provides shut-off function and balancing capability to isolate components for maintenance or to adjust system flow rates in residential and light commercial heating systems.

Advantages

The pair features a compact angled body that simplifies connection to existing pipework and reduces stress on fittings. A metal union nut ensures a secure mechanical connection and long service life. The valves allow independent shut-off of supply and return lines and offer precise adjustment for balancing heating circuits. Materials and construction are suitable for typical domestic heating media and maintain stable operation under normal system pressures and temperatures.

Suitable for

• Radiator and convector connections in central heating systems
• Domestic hot water circulation branches in apartments and houses
• Replacement of existing 1/2"F angled shut-off valves
• Installation where compact angled connection and metal nut are required

Key specifications

• Connection type: 1/2" female angled inlet and outlet
• Set composition: supply (feeding) valve and return valve with metal nut
• Body material: corrosion-resistant metal (brass-based construction)
• Valve function: shut-off and flow balancing
• Finish: nickel-plated or chrome-plated surface for corrosion resistance
• Operating media: hot water and typical heating fluids compatible with metal valves

How to use

Locate the supply and return pipe connections on the radiator or fixture and confirm 1/2"F thread compatibility. Shut down the heating system and drain the circuit to below the installation point before removing any existing valves. Fit the supply valve on the inlet side and the return valve on the outlet side, hand-tightening the metal union nut first, then secure with appropriate tools without over-torquing. After installation, refill the system and bleed air from the radiator. Use the valve handles to shut off flow for maintenance or to adjust the balancing by partially closing or opening the return valve until desired flow and temperature distribution are achieved.

Usage recommendations

For reliable long-term operation, perform periodic visual inspections for leaks and corrosion, and retighten connections if minor seepage occurs. Ensure system water treatment and corrosion inhibitors are used where recommended. When balancing, adjust gradually and verify room temperatures after each change. Avoid using excessive force on the metal nut and valve stems to prevent damage to threads and seals.