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2" Hi-Flow Anti Syphon Valve

Valves & Hardware

Stock Code: RIS-ASV

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The Risbridger Anti-Syphon Valve meets the requirements of standard and high-flow fuel dispensers connected to above ground storage tanks with 50mm (2 inch) pipework.

Providing anti-syphon protection, the valve is capable of flow rates of up to 180 litres per minute. The diaphragm servo assisted operating method allows high flow and low vacuum pressure loading of the dispenser pump – unlike spring resistance type designs.

Hydraulic valve damper and progressive flow opening minimise ‘hunting’ flow modulation problems over a wide flow and head pressure range.

  • High flow rate – up to 180 litres/minute
  • Suitable for petrol and diesel (including bio-fuel blends) and head pressures of 6.5m (0.6 bar)
  • Can be adapted to 1.5 inch pipework
  • 2 inch 4 bolt square flange with 2" BSPT threads for versatility
  • Includes stainless steel inlet screen
  • Installed at base of tank or dispenser in place of elbow fittings (Must be installed below the level of any air separator on the dispenser).
  • Hydraulic valve damper and progressive flow opening minimise ‘hunting’

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