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Valves for Coke Oven & Steel Plants — Kolkata

West Bengal's industrial belt spans Durgapur-Asansol with steel plants, coal mines, and Haldia Petrochem.

Knife gate valves for blast furnace gas and tar service, large-bore butterfly valves for BFG distribution mains, and IBR-certified steam valves for integrated steel plant cogeneration.

IS 6157 (BFG Gate Valves)ASME B16.34IBR 1950 (Steam)API 600API 609
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Coke Oven & Steel Plants Valves — Available in Kolkata

Knife Gate Valve

PN 10 / PN 16 (very low pressure BFG)

BFG and COG isolation with sticky tar deposits; full-bore for tar-laden gas; pneumatic actuated for remote operation

Materials: SS316 blade with WCB body; PTFE or NBR seat; easy blade replacement in-situ  ·  Standards: IS 6157, BS 7671, ASME B16.34
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Butterfly Valve (Large Bore)

PN 6 / PN 10

BFG main distribution headers (DN600–DN2400); low pressure, large flow; double-offset for tight shutoff

Materials: WCB body; A351 CF8M disc; EPDM or FKM seat; SS316 shaft  ·  Standards: API 609, EN 593, AWWA C504
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Gate Valve (IBR Steam)

Class 300 / 600

Cogeneration boiler steam headers; TRT (Top Gas Recovery Turbine) steam; IBR Form III mandatory

Materials: A216 WCB (to 425°C), A217 WC6 (to 540°C), A217 WC9 (to 595°C)  ·  Standards: IBR 1950, API 600, ASME B16.34
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Globe Valve (Control)

Class 150 / 300

Cooling water and process control; coke quenching, BF cooling stave circuits

Materials: A216 WCB with SS316 trim; SS316L for demineralised water service  ·  Standards: API 623, BS 1873, ASME B16.34
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Coke Oven & Steel Plants 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

BFG valves must accommodate sticky tar deposits — knife gate or through-conduit design; no wedge gate (tar packs the body cavity)
Large-bore butterfly valves for BFG (DN600–DN2400) — double-offset design for bubble-tight shutoff required at change of wind direction
IBR certification mandatory for all steam valves above 3.5 kg/cm² in Indian steel plants — Form III-C material and Form III-E hydrostatic test
Blast furnace water cooling valves — continuous service, no shutoff allowed; use dual parallel valves for maintenance
Coke oven gas (COG) — naphthalene deposition blocks small ports; use full-bore valves only; minimum DN50
IS 6157 compliance for BFG gate valves manufactured in India

Why Kolkata's Mining & Metals Sector Needs Coke Oven & Steel Plants Valves

West Bengal's industrial belt spans Durgapur-Asansol with steel plants, coal mines, and Haldia Petrochem. Key facilities in the Kolkata area — including Durgapur Steel Plant, Haldia Port, Salt Lake — rely on Knife Gate Valve for their mining & metals operations. Vajra Industrial Solutions supplies Knife Gate Valve, Butterfly Valve (Large Bore), Gate Valve (IBR Steam), Globe Valve (Control) for coke oven & steel plants projects across West Bengal, with full IS 6157 (BFG Gate Valves) and ASME B16.34 compliance documentation — EN 10204 3.1 material test certificates, API 598 pressure test reports, and third-party inspection co-ordination available for every order.

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 — Coke Oven & Steel Plants Valves in Kolkata

Do you supply coke oven & steel plants valves in Kolkata?
Yes. Vajra Industrial Solutions supplies Knife Gate Valve, Butterfly Valve (Large Bore), Gate Valve (IBR Steam), Globe Valve (Control) for coke oven & steel plants 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 coke oven & steel plants valves in Kolkata?
For coke oven & steel plants in Kolkata, the applicable standards are: IS 6157 (BFG Gate Valves), ASME B16.34, IBR 1950 (Steam), API 600, API 609, IS 2825, ASME B16.10. 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 coke oven & steel plants 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.
Why are knife gate valves preferred for blast furnace gas?
Conventional wedge gate valves trap BFG tar and dust in the body cavity, causing the gate to seize. Knife gate valves have no body cavity — the blade cuts through the medium with a shear action, shedding deposits on actuation. The flat-face gate also allows easy replacement in-situ when the knife edge wears, without removing the body from the pipeline. For large BFG mains (DN600–DN2400), double-offset butterfly valves are preferred over knife gates for better shutoff and lower actuator torque.
What IBR documentation is required for steel plant steam valves?
All steam valves above 3.5 kg/cm² must carry IBR Form III-C (Certified Material Test Report from the steel mill, showing heat number, chemical analysis, and mechanical test results) and IBR Form III-E (Hydraulic Test Certificate from the valve manufacturer, showing test pressure = 1.5 × rated working pressure held for ≥ 30 minutes). Vajra supplies both certificates as part of the standard documentation package for all IBR-certified valves.

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Coke Oven & Steel Plants Valves — Kolkata

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Request a Quote sales@vajravyuh.com +91 9979774557

Standards

IS 6157 (BFG Gate Valves)
ASME B16.34
IBR 1950 (Steam)
API 600
API 609
IS 2825
ASME B16.10

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