Sureseal Water Hammer Control Devices
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Sureseal Water Hammer Control Devices
SURESEAL Zero Velocity Valves and Vacuum Breaker Air Cushion Valves very effectively prevent the water hammer or pressure surge in long distance large diameter cross country rising mains. The two valves complement each other to provide a complete solution for controlling both upsurges and down surges or vacuum. The Zero Velocity Valve prevents oscillation of water column after tripping of all pumps due to conditions such as power failure. And the Vacuum Breaker Air Cushion Valve, by instantaneous vacuum breaking, controls the down surges or vacuum and by controlled release of air reduces the effect of secondary surges arising due to oscillation of water column.
Zero Velocity Valve
SERIES : F-131/F-141
- Size range: 100 mm to 3300 mm diameter
- Head Range: 10 kg/cm2 to 25 kg/cm2 (Higher pressure can be offered on request)
- Mounting: Flange End (upto ZVV size 300 mm)/ Barrel End (ZVV size 400 mm and above)
- MOC: MS IS 2062 E250 BR fabricated Other MOCs SS, Duplex etc. on request
Energy Dissipating Valve
SERIES: F-231, F-241
- Size range: 100 mm to 3300 mm diameter
- Hydrostatic Body Test Feature:10 kg/cm2 to 25 kg/cm2 (Higher pressure can be offered on request)
- Mounting: Flange End
- MOC: MS IS 2062 E250 BR fabricated Other MOCs SS, Duplex etc. on request
Vacuum Breaker Air Cushion Valve
STEALTH HIGH ENERGY DISSIPATING VALVE (SERIES: F-401, F-411)
- Application: At discharge of the gravity pipeline for prevention of erosion of the reservoir wall concrete, flow control in distribution network, inline of a gravity pipeline for breaking the pressure energy, Discharge of Dams and Turbine Bypass.
- Mounting: Flange mounted (Wafer Construction).
- Sizes: 80 mm to 2000 mm (higher sizes offered on request.)
- Actuation: Manual, Electric, Hydraulic, Pneumatic
- Sealing: Class 150 – Class 600
- Leakage Performance: Metal – Metal.
- Material Of Construction: Not a leak tight Valve.
- Technical Details: DI, Cast Steel, SS.
Air Vessels / Surge Vessels Compressor Type And Bladder Type
Air Vessels are one of the most effective methods of controlling pressure surge in the cross-country rising mains and lift irrigation projects. Jash offer these vessels upto volume of 150 m3 capacity. The Air Vessel system is offered along with the Air Compressor, Air Receiver, Connecting Pipe (optinal), pneumatic piping, Davit arm assembly, Ladders and bridges (optional) and control panel and other accessories required for vessel.
AIR VESSEL (SERIES: F-641)
- Size Range: 5 m3 to 150 m3 (Higher can be offered on request)
- Design Pressure: up to 25 kg/cm2 (Higher pressure can be offered on request)
- Mounting: Horizontal / Vertical
- Applicable Standards: ASME Section VIII Div 1 / IS 2825
- MOC: ASTM SA 516 Grade 70
- IS 2002 Grade 2
- Other MOCs on request.