Safeguarding Pump Minimum Flow The Model 730 relieves over pressure caused by excessive pump discharge during low demand. To keep a constant discharge pressure, the difference between pumped flow and consumer demand can be circulated back to pump suction.   Circulation valves are often exposed to severe cavitation because valve ∆P and velocity are usually high while downstream pressure is very low. On the other hand, the valves operate under these conditions for relatively short periods. Increased valve durability for applications requiring long operating periods will be achieved by using cavitation resistant materials, adding a downstream orifice, installing an upstream pressure reducing valve, increasing valve size, or any combination of these choices.

The Pressure Flow Control Metering Device (PFCMD) from Bermad, integrates a vertical turbine Woltman-Type water meter with a diaphragm actuated hydraulic control valve equipped with one, two or more pilots. The PFCMD automatically performs one, two or more independent functions, such as sustaining a preset minimal upstream pressure, maintaining the level in elevated reservoirs or sustaining maximum set flow. All functions are performed irrespective of change in upstream pressure and / or demand. Functions can easily be added or removed in a modular way. The meter accuracy is independent and not affected by the action of the valve. An adjusting screw on each pilot allows setting of the desired set-point for Pressure, Level & Flow. The valve is compatible with SCADA.

Total command area is of 6978 hectares and it is divided into 57 zones of approximately 100 to 150 hectares and each zone is further divided into 16 sub-sections.After detailed designing Saisanket was able to optimize the cost of Distribution Network with the use of Air Management System, Outlet Management System, Electric Energy less and Wireless Automation etc and enable client to use these system for better efficiency, Project can operate as per the variable schedule depends on varying crop water requirement , rainfall, Maintenance, No Water Requirement.Remote Metering, Controlling, monitoring & synchronization of 912 nos Outlets Chaks (Discharge at every outlet is from 50 lps to 110 lps) with zonal pumping stations , intake & 2nd stage pumping station.

The Model 740 Booster Pump Control Valve is a hydraulically operated, diaphragm actuated active check valve that opens fully or shuts off in response to electric signals. It isolates the pump from the system during pump starting and stopping, to prevent pipeline surges, Battery of single speed pumps (add & switch).

The D-070 Combination Dynamic Air Valve is a unique valve operating without a float, utilizing the rolling diaphragm principle. This unique structure allows the dynamic valves to discharge air from the water system in a controlled and gradual manner, preventing slam and local up-surges. When vacuum occurs , the valves fast reaction will draw in large volumes of air into the water system, impeding down-surges and, consequently, all pressure surges in the line. The valves are normally closed when the line is not operating, thus preventing the infiltration of foreign particles and insects into the water system. Applications Pumping stations, deep wells, and distribution lines. Systems that suffer from slam and local and system surges. Sites that require a combination of means to reduce water hammer or surges. Sites that require an air valve with a low profile due to lack of space.

The D-43 series Combination Air Valve has the features of both an air release valve and an air & vacuum valve. The air release component is designed to automatically release small pockets of air to the atmosphere as they accumulate along a pipeline or piping system when it is full and operating under pressure. The air & vacuum component is designed to automatically discharge or admit large volumes of air during the filling or draining of a pipeline or piping system. This valve will open to relieve negative pressures whenever water column separation occurs. Applications Pump stations: after the pump and after the check valve. Downstream (after) and upstream (before) of shut-off valves. After deep-well pumps. On long constant-sloped pipeline segments. At peaks along the pipeline and at peaks relative to hydraulic gradient. At end lines. Before water meters. On strainers and filters.

Safeguarding Pump Minimum Flow The Model 730 relieves over pressure caused by excessive pump discharge during low demand. To keep a constant discharge pressure, the difference between pumped flow and consumer demand can be circulated back to pump suction.   Circulation valves are often exposed to severe cavitation because valve ∆P and velocity are usually high while downstream pressure is very low. On the other hand, the valves operate under these conditions for relatively short periods. Increased valve durability for applications requiring long operating periods will be achieved by using cavitation resistant materials, adding a downstream orifice, installing an upstream pressure reducing valve, increasing valve size, or any combination of these choices.

The Pressure Flow Control Metering Device (PFCMD) from Bermad, integrates a vertical turbine Woltman-Type water meter with a diaphragm actuated hydraulic control valve equipped with one, two or more pilots. The PFCMD automatically performs one, two or more independent functions, such as sustaining a preset minimal upstream pressure, maintaining the level in elevated reservoirs or sustaining maximum set flow. All functions are performed irrespective of change in upstream pressure and / or demand. Functions can easily be added or removed in a modular way. The meter accuracy is independent and not affected by the action of the valve. An adjusting screw on each pilot allows setting of the desired set-point for Pressure, Level & Flow. The valve is compatible with SCADA.

Total command area is of 6978 hectares and it is divided into 57 zones of approximately 100 to 150 hectares and each zone is further divided into 16 sub-sections.After detailed designing Saisanket was able to optimize the cost of Distribution Network with the use of Air Management System, Outlet Management System, Electric Energy less and Wireless Automation etc and enable client to use these system for better efficiency, Project can operate as per the variable schedule depends on varying crop water requirement , rainfall, Maintenance, No Water Requirement.Remote Metering, Controlling, monitoring & synchronization of 912 nos Outlets Chaks (Discharge at every outlet is from 50 lps to 110 lps) with zonal pumping stations , intake & 2nd stage pumping station.

The Model 740 Booster Pump Control Valve is a hydraulically operated, diaphragm actuated active check valve that opens fully or shuts off in response to electric signals. It isolates the pump from the system during pump starting and stopping, to prevent pipeline surges, Battery of single speed pumps (add & switch).

The D-070 Combination Dynamic Air Valve is a unique valve operating without a float, utilizing the rolling diaphragm principle. This unique structure allows the dynamic valves to discharge air from the water system in a controlled and gradual manner, preventing slam and local up-surges. When vacuum occurs , the valves fast reaction will draw in large volumes of air into the water system, impeding down-surges and, consequently, all pressure surges in the line. The valves are normally closed when the line is not operating, thus preventing the infiltration of foreign particles and insects into the water system. Applications Pumping stations, deep wells, and distribution lines. Systems that suffer from slam and local and system surges. Sites that require a combination of means to reduce water hammer or surges. Sites that require an air valve with a low profile due to lack of space.

The D-43 series Combination Air Valve has the features of both an air release valve and an air & vacuum valve. The air release component is designed to automatically release small pockets of air to the atmosphere as they accumulate along a pipeline or piping system when it is full and operating under pressure. The air & vacuum component is designed to automatically discharge or admit large volumes of air during the filling or draining of a pipeline or piping system. This valve will open to relieve negative pressures whenever water column separation occurs. Applications Pump stations: after the pump and after the check valve. Downstream (after) and upstream (before) of shut-off valves. After deep-well pumps. On long constant-sloped pipeline segments. At peaks along the pipeline and at peaks relative to hydraulic gradient. At end lines. Before water meters. On strainers and filters.