DOROT S90 PS/M (3W), is a Weir-type diaphragm, 3-way, automatic, pilot-controlled back-pressure sustaining/relief globe valve, with a selector valve for manual override. The valve maintains a steady, preset pressure in the network, upstream of its location. Should upstream pressure exceed preset values, the valve opens to increase network flow, reducing upstream pressure. Should upstream pressure fall below preset values, the valve closes drip-tight.
Size Unit
Size range
Pressure rating
Working temperature
End connection type
Threaded, Solvent-welded
Standard construction materials
Body and Cover
PVC + Reinforced Nylon
Internal Parts
Stainless Steel and Polymer
Seals + Diaphragm
Natural rubber
* Other optional materials available upon request
DOROT S90 PS/M (3W)
DOROT S90 PS/M (3W)
