
Diaphragm Valves Supplier in Kolkata
West Bengal's industrial belt spans Durgapur-Asansol with steel plants, coal mines, and Haldia Petrochem.
Diaphragm valves are the standard for Kolkata's Mining & Metals applications. We supply sanitary SS316L diaphragm valves with EPDM, PTFE, and natural rubber diaphragms for West Bengal clients.
API 6D Certified
Ball, Gate, Globe, Check
ASME B16.34
Pressure-Temperature Rated
ISO 9001:2015
Quality Management
Fast Delivery
to Kolkata
Diaphragm Valves — Available in Kolkata
All diaphragm valves below are available for delivery to Kolkata, West Bengal. Each type is available in multiple materials, pressure classes, and end connection standards. Standard delivery to Kolkata takes 3–7 business days. Express dispatch options are available for urgent project timelines and plant shutdowns.

Weir Type Diaphragm Valve
Raised weir design for precise flow control and tight shut-off in chemical applications.
Pressure Rating: PN10 / PN16
Standards: BS 5156, ISO 5208

Straight-Through Diaphragm Valve
Full-bore design for slurry and viscous media with minimal flow restriction.
Pressure Rating: PN6 / PN10
Standards: BS 5156
Delivery of Diaphragm Valves to Kolkata
Standard delivery to Kolkata takes 3–7 business days. Express dispatch options are available for urgent project timelines and plant shutdowns.
Stock Items
Same/next day dispatch from Vadodara
Custom Orders
2–6 weeks depending on specification
Emergency Supply
Priority handling for plant shutdowns
We also supply to nearby areas: Durgapur Steel Plant, Haldia Port, Salt Lake, Asansol.
Frequently Asked Questions
Diaphragm Valves supply in Kolkata — ordering, delivery & compliance
Do you supply diaphragm valves in Kolkata?+
Yes. Vajra Industrial Solutions is a leading supplier of diaphragm valves in Kolkata, West Bengal. We supply to Mining & Metals, Power Generation, Jute & Textile plants and projects across West Bengal. West Bengal's industrial belt spans Durgapur-Asansol with steel plants, coal mines, and Haldia Petrochem.
What types of diaphragm valves are available in Kolkata?+
We supply Weir Type Diaphragm Valve, Straight-Through Diaphragm Valve — all available for delivery to Kolkata. Each type is available in multiple materials (CS, SS304, SS316, Duplex, Alloy Steel) and pressure classes from PN10 to Class 2500.
What certifications do your diaphragm valves carry?+
All our diaphragm valves comply with API 6D, ASME B16.34, ISO 9001:2015, and relevant standards. We provide full documentation including material test reports, hydrostatic test certificates, and dimensional inspection reports. Key standards: BS 5156, ISO 5208.
How fast can you deliver diaphragm valves to Kolkata?+
Standard delivery to Kolkata takes 3–7 business days. Express dispatch options are available for urgent project timelines and plant shutdowns.
What is the minimum order quantity for diaphragm valves to Kolkata?+
There is no minimum order quantity. We supply single valves for maintenance requirements as well as bulk orders for large EPC and plant projects in Kolkata. Emergency orders for plant shutdowns are handled on priority.
How do I get a quote for diaphragm valves in Kolkata?+
Submit your specifications via our RFQ form, email sales@vajravyuh.com, or WhatsApp +91-9979774557. Please include: valve type, size (NPS/DN), pressure class (ANSI/PN), material, end connections, and quantity. We respond within 24 hours with competitive pricing.
Need Diaphragm Valves in Kolkata?
Share your specifications and get a competitive quote within 24 hours. We supply to Mining & Metals and all industrial sectors in West Bengal.