Comisa 190 straight two-pipe H-block 3/4″ Eurocone × 3/4″ – 8821010

Comisa 190 8821010 is a straight two-pipe radiator connection valve, also known as an H-block, designed to connect a bottom-connected radiator to the flow and return pipework.

The straight design is suitable for installations where the pipes enter the radiator from the floor. An angled connection valve is normally used where the pipes enter from the wall.

Two ball shut-off valves are integrated into the body. They can be operated separately using a flat-blade screwdriver, allowing the flow and return connections to be closed and the radiator to be completely isolated from the heating system. This makes servicing, replacement and maintenance possible without draining the entire system.

The radiator side has 3/4″ flat-seal connections, while the pipe side has 3/4″ Eurocone connections. Suitable compression fittings must be selected according to the pipe material and dimensions.

The valve body is made of nickel-plated brass. The product is designed for two-pipe heating systems and radiators with bottom connections.

Main benefits

• straight design for pipes entering from the floor;
• designed for two-pipe heating systems;
• suitable for bottom-connected radiators;
• two integrated ball shut-off valves;
• independent isolation of the flow and return connections;
• ball valves operated with a flat-blade screwdriver;
• flat sealing on the radiator side;
• 3/4″ Eurocone pipe connections;
• nickel-plated brass body;
• radiator servicing without draining the entire system.

Technical specifications

Manufacturer: Comisa
Model: 190
Official product name: Double straight ball valve – flat seal
Technical code: MT019000707N
Catalogue code: 8821010 / 88.21.010
Product type: straight twin radiator connection valve
Alternative name: straight two-pipe H-block
Heating system: two-pipe
Radiator connection: bottom connection
Design: straight
Connection size: 3/4″ Eurocone × 3/4″
Pipe connections: 2 × 3/4″ Eurocone
Radiator connections: 2 × 3/4″
Radiator sealing type: flat seal
Shut-off elements: 2 integrated ball valves
Operation: flat-blade screwdriver
Body material: nickel-plated brass
Maximum operating pressure: 10 bar
Maximum operating temperature: 100 °C
Kvs value: approximately 5.4 m³/h
Sales unit: 1 piece