Comisa 191C double angle radiator valve 3/4″ Eurocone × 3/4″ – 8821025

The Comisa 191C 8821025 is an angled twin radiator connection block, also known as an H-block, designed for radiators with bottom flow and return connections.

It is intended for two-pipe central-heating systems and radiators with the standard 50 mm connection spacing. The angled configuration is suitable for installations where the supply pipes enter from the wall.

Two ball shut-off valves are integrated into the body. They can be operated with a flat-blade screwdriver, allowing the flow and return connections to be closed independently and the radiator to be completely isolated for servicing or replacement.

The valve body is manufactured from nickel-plated brass. Its tapered seal provides a reliable radiator connection, while the 3/4″ Eurocone pipe connections accept suitable compression fittings selected according to the pipe type and size.

Main benefits

• angled configuration for pipes entering from the wall;
• suitable for two-pipe heating systems;
• designed for bottom-connected radiators;
• standard 50 mm connection spacing;
• two integrated ball shut-off valves;
• independent isolation of flow and return;
• operated using a flat-blade screwdriver;
• tapered sealing;
• 3/4-inch Eurocone connections;
• nickel-plated brass body.

Technical specifications

Manufacturer: Comisa
Series: 191C
Manufacturer description: Double angle ball valve – tapered seal
Technical code: MT0191C0707N
Catalogue code: 8821025 / 88.21.025
Product type: double angle radiator connection valve
Alternative name: angled two-pipe H-block
Heating system: two-pipe
Radiator connection: bottom connection
Connection spacing: 50 mm
Connections: 3/4″ Eurocone × 3/4″
Seal type: tapered seal
Shut-off elements: 2 integrated ball valves
Operation: flat-blade screwdriver
Body material: CW617N nickel-plated brass
Maximum operating pressure: 10 bar
Maximum operating temperature: 95 °C
Listed Kvs flow coefficient: approximately 2.6 m³/h