A combined breathing valve with increased throughput regulates pressure and vacuum in the gas space of large—volume tanks.
The KDS combines pressure and vacuum valves in one housing and is designed for high flow rates of the steam-air mixture during intensive filling/draining operations. When the pressure increases, the pressure valve opens, and when the pressure decreases, the vacuum valve opens; the fire safety cartridge protects the tank from flame penetration. The valves are covered with housings — a roof and a flap.
It is mounted on the roof mounting pipe through a mounting flange with an adapter, equipped with a transport bracket. The standard sizes according to DN, pressure and vacuum settings, and throughput are adjusted to the volume of the tank. The material is steel and aluminum alloy.
| Type | Combined breathing valve |
|---|---|
| Purpose | Pressure/vacuum control at high flow rates, flame protection |
| Standard sizes, DN | 100, 150, 200, 250, 350 |
| Actuation pressure | up to 2000 Pa (by setting) |
| Actuation vacuum | up to 400 Pa (by setting) |
| Throughput capacity | increased in standard size (DN) |
| Operating temperature | −60…+60 °C |
| Flame arrester | Cassette |
| Material | Steel, Aluminum alloy |
| Installation | On the mounting pipe of the tank roof |
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