The NABIC Fig 503 Three Way Vent Cock has been designed for use on vented hot water systems, to ensure there is a permanent connection from the boiler or calorifier to atmosphere.

This valve allows the use of a single common vent pipe and permits continued operation of the system whilst maintenance is carried out on an individual unit.

• Boiler connection permanently open
• Minimum water loss on changeover
• Cassette construction for ease of Inspection and in-line servicing

Medium

• Hot water

Size Range

• DN20 - DN65

Pressure

• 7 bar

Material

• Gunmetal

Temperature

• -20 to 93°C

Connection

• Female