The RLV union fitting serves as a regulating valve on the radiator return. It allows the maximum flow of heating water through the radiator to be set (presetting), the circuit to be shut off during radiator removal or replacement, and, when used in combination with a drain valve, also enables the radiator to be drained and refilled without affecting the rest of the system. Thanks to its straight pattern, it is suitable for the standard side connection of a radiator.

The self-sealing push-fit connection ensures reliable and quick connection to the radiator tailpiece without the use of hemp, jointing compound or PTFE tape. The connection on the pipework side is provided by a standard thread for connection to the piping system.

Features

• Valve type: radiator return union fitting
• Pattern: straight (inline)
• Nominal size: DN 15
• Radiator connection: self-sealing push-fit – no sealing required
• Flow presetting option
• Shut-off function for safe radiator removal
• Radiator draining/filling function (with the appropriate valve)
• Compatible with Danfoss RA series thermostatic valves and most other valves with a standardised M30×1.5 connection
• Maximum working pressure: 10 bar
• Maximum test pressure: 16 bar
• Maximum medium temperature: 120 °C
• Material/finish: brass, nickel-plated finish