Automatic Control Valves

Pressure Reducing Valves

Pressure Reducing Valve

Pressure Reducing Valves are normally globe valves design with direct sealing diaphragm, automatically reduces a higher or unstable inlet pressure to a lower, desired outlet pressure. The outlet pressure remains constant, regardless of fluctuations in flow rate or pressure in the inlet side.

How Pilot-Operated Pressure Reducing Valves- Diaphragm Actuated Type work?

The pilot valve detect the outlet pressure through a connection to the valve downstream side. In normal operating conditions, the pilot reacts to the changes in outlet pressure to regulate the valve position by modulating the pressure above the diaphragm.

The outlet pressure is maintained steady at the pilot set point.

Or it can be provided with 3-way relay valve, activated by pneumatic pressure command to open or close the main valve so it becomes a pneumatically operated control valve.

Description

Pn	10, 16, 25
DN	40-600
Medium	Water \| Effluent water
Application	Transmission pipeline \| Distribution network \| Pumping stations \| Treatment plants \| High-rise buildings \| Pressure management \| Shipbuilding
Specifications	Diaphragm-operated control valve with its own-medium control for the regulation of pressure and flow rates in pipeline systems without external power supply Independent from variations of the inlet side pressure and flow rate, the valve reduces a higher inlet pressure to a predetermined outlet pressure. With flange ends on both sides according to EN 1092-2 Separate connections of pilot control circuit and pressure gauges Designed to reduce cavitation by using slotted cylinder Body and bonnet of Ductile Iron Diaphragm of WRAS-approved EPDM Control circuit and pilot valves body of stainless steel or brass Hydraulic test according to EN 1074 and EN 12266; Seat: 1.1 x PN. Body: 1.5 x PN Can be modified to be electrically or pneumatically operated