Diaphragm valve WW-790-M
hydraulically-operatedregulatingfor water

diaphragm valve
diaphragm valve
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Characteristics

Type
diaphragm
Operation
hydraulically-operated
Function
regulating
Media
for water
Body
Y
Other characteristics
actuated
DN

Max.: 500 mm
(19.685 in)

Min.: 40 mm
(1.575 in)

Pressure

16 bar, 25 bar
(232.1 psi, 362.6 psi)

Temperature

80 °C
(176 °F)

Description

The Model 790-M Burst Control Valve is a hydraulically operated, diaphragm actuated control valve that upon sensing flow in excess of setting shuts off and locks drip tight, until it is manually reset. As long as flow is lower than the setting, the valve remains fully open, minimizing head loss. Product features & benefits •Line pressure driven – Independent operation •Mechanical flow stem oField adjustable oNo moving parts oNo electronic components •Highly sensitive hydraulic pilot oRequires minimal valve-?P oTight setting window •In-line serviceable – Easy maintenance oDouble chamber oModerated valve reaction oProtected diaphragm •No spring – Full opening •Flexible design – Easy addition of features •“Y” or angle, wide body – Minimized pressure loss •Obstacle free, full bore – Uncompromising reliability TYPICAL PRODUCT APPLICATIONS Typical Applications Burst Control Valves in a Network Every water system is vulnerable to bursts, whether due to system problems or external mechanical damage. This illustration shows a reservoir feeding a downhill line with lower elevation consumers. In case of burst, each Model 790-M protects against flooding lower elevation consumers. The Model 790-M, installed at the reservoir outlet, also protects against reservoir emptying.

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WATERWORKS

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.