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DOROT S300L NS, is a Diaphragm-actuated, Rigid Seal, Two-stage Cushioned-closure, Globe-type Check Valve, activated by the pressure of the pipeline. The valve eliminates check valve pressure slam, frequently found in high-rise roof-tank filling pumps. The valve opens when the pump is activated, and closes slowly at a controlled pace when the pump stops.
Size Unit
Size range
Pressure rating
Working temperature
End connection type
Threaded, Flanged, Grooved
Standard construction materials
Body and Cover
Ductile Iron
Internal Parts
Up to DN150, 6″ – Stainless Steel
DN200, 8″ – Stainless Steel and Coated Steel
Seals + Diaphragm
EPDM
* Other optional materials available upon request