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Ratnagiri · Nuclear Power Plants

Valves for Nuclear Power PlantsRatnagiri

Ratnagiri's Dabhol complex — operated by Ratnagiri Gas & Power Private Limited (RGPPL, a NTPC–GAIL joint venture) — is one of India's largest LNG regasification and combined-cycle power generation facilities, with 5 Mtpa LNG import capacity and 1,967 MW CCGT capacity; the Dabhol LNG terminal requires cryogenic ASTM A182 F316L extended-stem ball valves, cryogenic butterfly valves, and safety relief valves for LNG storage and regasification; Vajra Industrial Solutions supplies IBR-certified steam valves, cryogenic LNG ball valves, and ASME B16.34 Class 300–900 gate valves for RGPPL Dabhol, with 3–5 day delivery from Vadodara.

ASME Section III Class 2/3 gate, globe, and check valves with N-stamp traceability for nuclear power plant balance-of-plant, auxiliary, and spent-fuel cooling systems.

ASME Section III (Class 2/3)ASME B16.34IEEE 382 (MOV)IEEE 344 (Seismic)10 CFR 50 Appendix B
API 6D Certified
ASME B16.34
ISO 9001:2015
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Nuclear Power Plants Valves — Available in Ratnagiri

Gate Valve (ASME Sec. III Cl.2)

Class 150 / 300 / 600 (ASME B16.34 ratings)

Main isolation on auxiliary cooling, emergency core cooling (ECCS) suction, and spent fuel pool cooling

Materials: A351 CF8M (SS316 cast), A182 F316 forged (Class 2); WCB with SS316 trim (Class 3)  ·  Standards: ASME Section III NB/NC/ND, ASME B16.34, ASME B16.10
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Globe Valve

Class 150 / 300

Throttling and control on reactor auxiliary cooling, chemical dosing, and letdown systems

Materials: A351 CF8M SS316, A182 F316L for radioactive waste service  ·  Standards: ASME Section III Class 2/3, IEEE 382 for motor-operated versions
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Check Valve

Class 150 / 300 / 600

Back-flow prevention on ECCS injection lines, charging pump outlets, and feedwater systems

Materials: A351 CF8M (SS316), A182 F316 lift or swing check  ·  Standards: ASME Section III Class 2/3, API 594
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Butterfly Valve

Class 150

Large-bore isolation on service water, component cooling water, and turbine building HVAC

Materials: A216 WCB with SS316 disc and EPDM seat; rubber-lined for raw water service  ·  Standards: ASME Section III Class 3, AWWA C504, IEEE 382
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Nuclear Power Plants Industry in Ratnagiri

Ratnagiri's Dabhol complex — operated by Ratnagiri Gas & Power Private Limited (RGPPL, a NTPC–GAIL joint venture) — is one of India's largest LNG regasification and combined-cycle power generation facilities, with 5 Mtpa LNG import capacity and 1,967 MW CCGT capacity; the Dabhol LNG terminal requires cryogenic ASTM A182 F316L extended-stem ball valves, cryogenic butterfly valves, and safety relief valves for LNG storage and regasification; Vajra Industrial Solutions supplies IBR-certified steam valves, cryogenic LNG ball valves, and ASME B16.34 Class 300–900 gate valves for RGPPL Dabhol, with 3–5 day delivery from Vadodara.

Power Generation (Dabhol / Ratnagiri Gas & Power)LNG RegasificationChemical & PharmaceuticalPort & LogisticsFisheries & Food

Critical Valve Requirements

ASME Section III Class 2/3 design: complete material traceability (Certified Material Test Reports — CMTRs) for all pressure-boundary components
N-stamp or NA-stamp: third-party ASME Nuclear Inspector oversight for Class 2 and above
Seismic qualification per IEEE 344 — valves on safety-related systems must withstand Operating Basis Earthquake (OBE) and Safe Shutdown Earthquake (SSE)
Motor-operated valves (MOVs) qualified per IEEE 382 — torque, voltage variation, and harsh-environment performance testing
QA programme per 10 CFR 50 Appendix B (USA) or AERB Safety Guide (India) — design control, procurement document control, inspection, and test records
No substitution of materials without NCR (Non-Conformance Report) and AERB/NRC approval — traceability is mandatory

Why Ratnagiri's Power Generation (Dabhol / Ratnagiri Gas & Power) Sector Needs Nuclear Power Plants Valves

Ratnagiri's Dabhol complex — operated by Ratnagiri Gas & Power Private Limited (RGPPL, a NTPC–GAIL joint venture) — is one of India's largest LNG regasification and combined-cycle power generation facilities, with 5 Mtpa LNG import capacity and 1,967 MW CCGT capacity; the Dabhol LNG terminal requires cryogenic ASTM A182 F316L extended-stem ball valves, cryogenic butterfly valves, and safety relief valves for LNG storage and regasification; Vajra Industrial Solutions supplies IBR-certified steam valves, cryogenic LNG ball valves, and ASME B16.34 Class 300–900 gate valves for RGPPL Dabhol, with 3–5 day delivery from Vadodara. Key facilities in the Ratnagiri area — including RGPPL (Ratnagiri Gas & Power Pvt Ltd) Dabhol LNG Terminal, RGPPL 1,967 MW Combined Cycle Power Plant, Jaigad Port (proposed LNG expansion) — rely on Gate Valve (ASME Sec. III Cl.2) for their power generation (dabhol / ratnagiri gas & power) operations. Vajra Industrial Solutions supplies Gate Valve (ASME Sec. III Cl.2), Globe Valve, Check Valve, Butterfly Valve for nuclear power plants projects across Maharashtra, with full ASME Section III (Class 2/3) 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 Ratnagiri

Vajra Industrial Solutions offers delivery to Ratnagiri in 3–7 business days. Emergency dispatch available for plant shutdowns and critical site requirements.

Also serving: RGPPL (Ratnagiri Gas & Power Pvt Ltd) Dabhol LNG Terminal, RGPPL 1,967 MW Combined Cycle Power Plant, Jaigad Port (proposed LNG expansion), GAIL Dabhol LNG import pipeline, Maharashtra chemical cluster (Lote Parshuram MIDC)

FAQ — Nuclear Power Plants Valves in Ratnagiri

Do you supply nuclear power plants valves in Ratnagiri?
Yes. Vajra Industrial Solutions supplies Gate Valve (ASME Sec. III Cl.2), Globe Valve, Check Valve, Butterfly Valve for nuclear power plants applications in Ratnagiri, Maharashtra. Ratnagiri's Dabhol complex — operated by Ratnagiri Gas & Power Private Limited (RGPPL, a NTPC–GAIL joint venture) — is one of India's largest LNG regasification and combined-cycle power generation facilities, with 5 Mtpa LNG import capacity and 1,967 MW CCGT capacity; the Dabhol LNG terminal requires cryogenic ASTM A182 F316L extended-stem ball valves, cryogenic butterfly valves, and safety relief valves for LNG storage and regasification; Vajra Industrial Solutions supplies IBR-certified steam valves, cryogenic LNG ball valves, and ASME B16.34 Class 300–900 gate valves for RGPPL Dabhol, with 3–5 day delivery from Vadodara. We offer delivery to Ratnagiri in 3–7 business days with full documentation and third-party inspection.
What certifications are required for nuclear power plants valves in Ratnagiri?
For nuclear power plants in Ratnagiri, the applicable standards are: ASME Section III (Class 2/3), ASME B16.34, IEEE 382 (MOV), IEEE 344 (Seismic), 10 CFR 50 Appendix B, AERB (India), NRC Regulatory Guides. 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 nuclear power plants valves to Ratnagiri?
Standard stock sizes: delivery to Ratnagiri 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 is ASME Section III and why does nuclear require it?
ASME Section III is the Boiler and Pressure Vessel Code for Nuclear Facility Components. Unlike ASME B16.34 (industrial valves), Section III imposes full design analysis, material traceability to mill certificates (CMTRs), N-stamp third-party oversight during manufacturing, and complete quality records. Class 1 covers the primary pressure boundary (reactor coolant), Class 2 covers safety-related secondary systems (ECCS, spent fuel cooling), and Class 3 covers other safety-related systems (service water). Vajra supplies Class 2 and 3 components for balance-of-plant applications.
What is the difference between nuclear Class 2 and Class 3 valves?
ASME Section III Class 2 applies to systems that could affect the safety function of the reactor coolant boundary — e.g., emergency core cooling, spent fuel pool cooling. Class 3 applies to systems important to safety but with a lower direct interface — service water, fire protection, component cooling water. Class 2 requires more rigorous design documentation, full material traceability, and N-stamp inspection. Class 3 has slightly relaxed requirements but still demands CMTRs and a documented QA programme.

Other Application Guides for Ratnagiri

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Nuclear Power Plants Valves — Ratnagiri

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Standards

ASME Section III (Class 2/3)
ASME B16.34
IEEE 382 (MOV)
IEEE 344 (Seismic)
10 CFR 50 Appendix B
AERB (India)
NRC Regulatory Guides