Saferise - Double Oriffice Air Valve
From Valves- Air Valves
Saferise is a double-oriffice air valve with integral engineered surge anticipation and alleviation mechanism. Please see below our Working with Air Valves document and the Saferise datasheets under the Option Comparison tab. Saferise is a double-orifice air valve with integral engineered surge anticipation and alleviation mechanism. Designed to overcome potentially damaging effects of hydraulic surges associated with water boosting systems in high-rise buildings, vacuum prevention on pump failure and column separation. Saferise allows the efficient intake of bulk air during the draining cycle while accurately controlling the discharge speed during the charging cycle.
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Technical Specification
Technical Specification
- Standard: BS EN 1074-4:2000
- Inlet: 1'BSP to DN200
- Flanges and drillings: BS EN 1092-2:1987 Table 9 (PN16)
- Alternatives: BS EN 1092-2:1987 Table 10 (PN25), BS EN 1092-2:1987 Table 11 (PN40)
- Maximum working pressure: 16 bar ( 25 and 40 bar on request)
- Minimum working pressure: 0.3 bar
- Temperature range: -10ºC to 60ºC, insulate at 0ºC and below
- Hydrostatic pressure tests: Seat: 1.1 x PN, Body: 1.5 x PN
- Coating: fusion bonded epoxy (WRAS listed)
Features
- Patented proven engineered design
- Metallic integral surge alleviation mechanism
- Directly-acting precision-machined solid floats
- Robust lightweight ductile iron body
- Corrosion resistant construction
- Excellent flow capacity
- WRAS approved
Options
- Tapped outlet cowl
- Higher pressure version (PN25, PN40 & PN64)
- Insect mesh
- Associated components (isolation valve and filter)
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