Pressure sustaining hydraulic valve DN125 cast iron, 5" flange outlet, with 3-way plastic pilot holder, 3-way valve, intake filter, pressure gauge, plastic connections and microtube. PN6.
The pressure sustaining hydraulic valve is designed to maintain a minimum upstream pressure, regardless of changes in the downstream flow or pressure.
The valve is regulated by a 2 or 3-way pilot, allowing a total opening of the valve when the upstream pressure is higher than the preset pressure.
If the pressure is lower, the valve will remain closed.
The pressure sustaining valve is activated by line pressure and regulated by the pilot valve. This includes a diaphragm that controls the opening or closing of the main valve by upstream pressure, sending more or less pressure to the main valve control chamber.
If the upstream pressure falls below that set on the pilot, the valve tends to throttle the flow of water or close by increasing the pressure to that set on the pilot. When the upstream pressure rises above that set on the pilot, the valve will open, decreasing the pressure set on the pilot.
The pressure sustaining hydraulic valve is used when a minimum downstream pressure is required, or when upstream pressure surges are to be reduced.
Hydraulic valve materials:
-Body and cover in cast iron GG-50, with epoxy-polyester paint coating.
-Stainless steel spring.
-Natural rubber diaphragm reinforced with nylon fabric.
Recommended flow 12-220m3 / h
Minimum working pressure 0,8-1,0 Kg / cm2
Dimensions 330x250mm
25 Weight Kg.
