700 series   sa surge anticipating valve

700 Series  SA Surge Anticipating Valve

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Armaş “SA” model surge anticipating control valve is the safety control valve designed to protect system in relatively longer water supply network elevating line by damping energy waves formed by energy interruptions in pumping systems and by releasing water- hammers which are caused from sudden changes in water flow rate to atmosphere automatically and quickly. Valve is opened quickly by sensing diminished pressure wave previously by means of pressure signal tube it owned. When line pressure reached normal level, it is closed slowly and automatically as wholly sealed.

Surge Anticipating valve is mounted on network in TE configuration.
Since valve's function is to release pressure, valve diameter may be selected as equal to or in closest smaller size than main pipe diameter. Valve diameter should be selected as smaller than main pipe diameter. Following empirical formula may be used in determining diameter of quick pressure relief control valve. Where;

D = Diameter of surge anticipating valve (mm)
Q = System Flow Rate (m3/h)
Hm = System Operating Pressure (meter → 1 bar ≈ 10 meter)
Valve closing time is proportional with pipe length. As system pipe length increases, valve closing time should be increased.

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