Kolkata · Water Treatment & Desalination
Valves for Water Treatment & Desalination — Kolkata
West Bengal's industrial belt spans Durgapur-Asansol with steel plants, coal mines, and Haldia Petrochem.
Butterfly, gate, check, and diaphragm valves for water treatment, RO desalination, and municipal water distribution — DI, CS, SS 316 materials.
EN 593 (Butterfly valves)AWWA C504 / C509 / C515ISO 9001:2015IS 780 / IS 14846BS EN 1171 (Cast iron gate valves)
API 6D Certified
ASME B16.34
ISO 9001:2015
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Water Treatment & Desalination Valves — Available in Kolkata
Concentric Butterfly Valve
PN 6 / PN 10 / PN 16Most common isolation and throttling valve for water treatment — low cost, large bore availability, EPDM seat
Materials: Ductile iron (GGG-50/GJS-500-7), SS 316 for saline/high-chlorine service · Standards: EN 593, AWWA C504, IS 13095
View Concentric Butterfly Valve options for Kolkata →Resilient-Seated Gate Valve
PN 10 / PN 16 (AWWA 150 psi)Full-bore isolation in buried service, pumping stations, and distribution networks
Materials: Ductile iron with rubber-encapsulated wedge, fusion-bonded epoxy coating · Standards: AWWA C509 / C515, IS 14846, EN 1171
View Resilient-Seated Gate Valve options for Kolkata →Swing Check Valve
PN 10 / PN 16Pump discharge anti-backflow protection in pumping stations and rising mains
Materials: Ductile iron or DI with SS 316 disc, EPDM seat · Standards: EN 12334, AWWA, IS 5312
View Swing Check Valve options for Kolkata →Diaphragm Valve (Rubber-Lined)
PN 10 / PN 16Chemical dosing and slurry handling in WTP filter backwash and sludge lines
Materials: DI body with natural rubber or EPDM lining; PP or PVDF for chemical service · Standards: ISO 16138, EN 13397
View Diaphragm Valve (Rubber-Lined) options for Kolkata →Water Treatment & Desalination Industry in Kolkata
West Bengal's industrial belt spans Durgapur-Asansol with steel plants, coal mines, and Haldia Petrochem.
Mining & MetalsPower GenerationJute & TextileShipbuilding
Critical Valve Requirements
Drinking water contact compliance: WRAS / NSF 61 / IS potable water certification for epoxy coatings and elastomers
Corrosion protection: fusion-bonded epoxy (FBE) or Rilsan (polyamide) coating for buried ductile iron valves
EPDM elastomers — chlorine and ozone resistant for treated water service
Large bore availability — DN 200–DN 1200 butterfly valves for major distribution mains
Actuator compatibility for remote operation in WTP control systems
Extended service life (20–40 years expected) — heavy-duty ductile iron construction
Delivery to Kolkata
Vajra Industrial Solutions offers delivery to Kolkata in 3–7 business days. Emergency dispatch available for plant shutdowns and critical site requirements.
Also serving: Durgapur Steel Plant, Haldia Port, Salt Lake, Asansol
FAQ — Water Treatment & Desalination Valves in Kolkata
Do you supply water treatment & desalination valves in Kolkata?
Yes. Vajra Industrial Solutions supplies Concentric Butterfly Valve, Resilient-Seated Gate Valve, Swing Check Valve, Diaphragm Valve (Rubber-Lined) for water treatment & desalination applications in Kolkata, West Bengal. West Bengal's industrial belt spans Durgapur-Asansol with steel plants, coal mines, and Haldia Petrochem. We offer delivery to Kolkata in 3–7 business days with full documentation and third-party inspection.
What certifications are required for water treatment & desalination valves in Kolkata?
For water treatment & desalination in Kolkata, the applicable standards are: EN 593 (Butterfly valves), AWWA C504 / C509 / C515, ISO 9001:2015, IS 780 / IS 14846, BS EN 1171 (Cast iron gate valves), WRAS / NSF 61 (Drinking water contact). All valves are supplied with full documentation including material test reports (EN 10204 3.1/3.2), pressure test certificates, and dimensional inspection reports. Third-party inspection (TPI) by EIL, Bureau Veritas, Lloyd's Register, or the client's nominated inspector can be arranged.
What is the delivery time for water treatment & desalination valves to Kolkata?
Standard stock sizes: delivery to Kolkata in 3–7 business days. Custom sizes and special materials (Duplex, Hastelloy, P91): 4–8 weeks manufacturing lead time. Express dispatch available for urgent site requirements. Contact us at +91-9979774557 or sales@vajravyuh.com with your specification and required delivery date.
What butterfly valve standard applies to water treatment in India?
For water treatment in India, butterfly valves are specified per IS 13095 (Indian Standard for butterfly valves for water supply and sewerage), EN 593 (European standard), or AWWA C504. IS 13095 is the most common for domestic municipal projects. The valve body is typically ductile iron (GGG-50 per ISO 1083 or IS 1865) with EPDM seat. For export-oriented projects or international standards (World Bank, JICA-funded), EN 593 or AWWA C504 is specified.
What valves are used in RO desalination plants?
RO desalination plants use several valve types: High-pressure butterfly valves or ball valves (in SS 316 or Duplex) for RO membrane train isolation; energy recovery devices (ERD) require high-cycle valves with precise control; brine reject lines use SS 316 due to high chloride concentration; pre-treatment (clarification, filtration) uses ductile iron butterfly valves. All valves in contact with potable water must comply with NSF 61 or equivalent.
Other Application Guides for Kolkata
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Water Treatment & Desalination Valves — Kolkata
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Standards
EN 593 (Butterfly valves)
AWWA C504 / C509 / C515
ISO 9001:2015
IS 780 / IS 14846
BS EN 1171 (Cast iron gate valves)
WRAS / NSF 61 (Drinking water contact)
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