Valves for the Effluent Treatment Plant (ETP)
Treats process wastewater before discharge or reuse. Solids-laden, variable-pH streams put abrasion and corrosion resistance ahead of pressure rating in the valve selection logic.
What are the critical valves in a Effluent Treatment Plant?
Sludge / slurry transfer (Pinch Valves) — Abrasion-tolerant isolation for solids-laden effluent streams. Equalisation basin isolation (Butterfly Valves) — Large-bore, variable-pH-tolerant isolation across basins. Chemical dosing (pH correction) (Diaphragm Valves) — Corrosion-resistant metering of acid/caustic dosing chemicals.
Critical Valve Points
Sludge / slurry transfer
Pinch Valves →Abrasion-tolerant isolation for solids-laden effluent streams.
Equalisation basin isolation
Butterfly Valves →Large-bore, variable-pH-tolerant isolation across basins.
Chemical dosing (pH correction)
Diaphragm Valves →Corrosion-resistant metering of acid/caustic dosing chemicals.
Unit-Level Valve Strategy
- Solids-bearing sludge and slurry lines favour knife-gate or pinch valves over standard gate/ball designs
- Variable and often unpredictable pH across equalisation basins pushes toward lined or duplex trim rather than a single carbon-steel default
- Low-pressure, high-reliability requirement - the ETP rarely has redundancy, so valve availability drives selection more than performance headroom
Equipment in this Unit
Fluids in this Unit
Governing Standards
Related process units
Sealing systems specified in this unit
Connected Engineering
Sourcing valves for a Effluent Treatment Plant?
Send your unit valve list — we supply the full set (Pinch Valves, Butterfly Valves, Diaphragm Valves) with certification matched to ASME B31.3, in one PO.