

Water Treatment Butterfly Valve – Certified, Long-Life Flow Control by Flowtorq
In-Depth Performance in Municipal & Industrial Water Treatment Processes
Water treatment butterfly valves provide dependable isolation, flow regulation, and throttling in raw water intake, coagulation/flocculation, filtration, sedimentation, disinfection, distribution, wastewater collection, sludge handling, and desalination plants.
Flowtorq manufactures and supplies robust water treatment butterfly valves certified for potable use and engineered for buried, submerged, or aggressive environments.
Expanded Features & Considerations for Water Treatment Butterfly Valves
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Material Durability — Ductile iron bodies with fusion-bonded epoxy (FBE) coating (250–300 microns) and 316 stainless steel shafts/discs resist corrosion, tuberculation, and biological growth.
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Sealing Integrity — 360° full-circle EPDM seats ensure zero leakage even after years of inactivity; field-replaceable without special tools.
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Compliance — NSF/ANSI 61 & 372 certified for drinking water; AWWA C504-compliant options available.
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Pressure & Size Range — Class 150B/250B ratings; sizes up to 72" for transmission mains.
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Actuation — Manual gear with position indicator for buried service; electric/pneumatic for automated SCADA integration.
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Nuances: Select chloramine-resistant EPDM for treated water; use double-eccentric designs to minimize seat wear in high-velocity raw intake lines and reduce cavitation risk.
Applications & System Implications
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Potable water pumping stations, filter backwash, and clearwell outlet control.
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Wastewater aeration basins, clarifiers, and effluent discharge.
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Desalination brine/outfall lines requiring high corrosion resistance.
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Implications: Reliable shutoff prevents contamination/backflow; low torque extends actuator life and reduces energy use in automated plants.
Flowtorq's Commitment to Water Treatment Excellence
Flowtorq provides proof-of-design testing, traceability, and options for vault/buried service.
Partner with Flowtorq – expert manufacturer and supplier – for water treatment butterfly valves built for decades of service.
4. Technical Specifications Table
Feature | Industrial Standard | Our Specification |
|---|---|---|
Size Range | 2" to 48" (DN50 - DN1200) | Full range available in stock |
Pressure Class | ASME Class 150 / PN10 / PN16 | Rated up to 232 PSI (16 Bar) |
Body Materials | CI, DI, WCB, CF8M | Ductile Iron GGG40/50 (Standard) |
Seat Material | EPDM / NBR / PTFE | High-Density EPDM (Standard) |
Face-to-Face | API 609 / ISO 5752 | Short & Long pattern available |
Top Flange | ISO 5211 | Universal mounting for easy actuation |
5. Applications and Industry Use-Cases
Our valves are rigorously tested to meet global standards (API, CE, ISO), making them suitable for:
6. Maintenance and Longevity
The modular design of our water treatment butterfly valves allows for field-replaceable seats. This means that instead of replacing an entire valve assembly, you can simply swap the elastomer seat during scheduled outages, significantly reducing your Total Cost of Ownership (TCO).
Ready to optimize your flow? Contact our engineering team today for a CAD drawing or a bulk quote for your next project.
Flowtorq Engineering India Pvt. Ltd.
60 Ft Road, Fatima nagar - Naigaon, Bhiwandi 421302, MH, India
Phone
+91-7028405198
+91-9028305198
+91-8007405198







