Aquabrake Double Orifice Air Valve
Aquabrake® double orifice air valve is an innovative combination of small and large orifice air valve within one compact cylindrical housing. The function of the large orifice is to admit bulk air during the pipeline draining phase and expel bulk air during system filling. Under operating conditions, any small accumulations of air are bleed through the small orifice. The novel design features corrosion restraint components acting through a central axis and reduced weight when compared to comparative units.
Used to prevent pressure build-up, vacuum in the pipe system and to control bleed of gas to maintain stability. Suitable for potable and filtered water applications. Please see below our Working with Air Valves document and the Aquabrake Double Orifice datasheets under the Technical Features tab.
Product Information
Aquabrake Double Orifice Air Valve
Double orifice air valve, having three functions:
- Efficient release of gas to prevent pressure build up
- Ingress of gas to prevent vacuum in the pipe system
- Controlled bleed of gas to maintain stability
Suitable for potable and filtered water applications
Technical Specifications
- Standard: BS EN 1074-4
- Inlet: 1" BSP to DN200
- Maximum working pressure: 16 Bar (25 and 40 Bar on request)
- Temperature range: -10°C to 60°C, insulate at 0°C and below
- Hydrostatic pressure tests:
Seat: 1.1 x PN
Body: 1.5 x PN - Coating: Fusion bonded epoxy (WRAS listed)
Options
- Isolating valve
- Tapped cowl
- Insect mesh
- Surge alleviation mechanism
Features
- Directly acting solid cylindrical float
- Lightweight compact single chamber design
- Patented small orifice configuration
- Excellent flow capacity
- Drain valve
- Crrosion resistant construction
- WRAS approved
* Please note models 2" BSP and DN200 are not available to buy online. Please contact our sales team for further information.
Applications
Clean Water Treatment Works Datasheets
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Lugged butterfly valve, DN50-DN1200, PN16, Concentric, EN558-2-S20Starting from Contact Sales
