IBR Valve Approval Checklist for Buyers in India

Technical guide · Supreme Valves India · September 2026

What IBR covers for valve buyers

The Indian Boilers Act and Indian Boiler Regulations (IBR) govern design, manufacture, inspection, and certification of boilers and certain steam piping components in India. Valves on regulated boiler steam and feedwater circuits often must be IBR-approved — meaning the manufacturer holds relevant approvals and the valves are documented for inspection by the boiler directorate or authorized inspector.

Buyers and EPCs who treat IBR as a last-minute stamp request cause delivery delays. This checklist is written for procurement officers and project engineers so the enquiry already contains what inspectors and manufacturers need. Supreme Valves India supplies IBR-scope valves for boiler plants; use the interactive tool to generate RFQ text.

Step 1 — Confirm circuit applicability

Not every valve in a boiler house is automatically IBR. Clarify with the boiler consultant or inspector whether the line is under IBR (main steam, feedwater, blowdown, certain auxiliaries) or only plant utility steam outside the regulated boundary. Document the boiler rating (pressure and capacity) on the purchase requisition.

State media clearly: steam, boiler feedwater, or condensate. Material and testing expectations differ. Mark design pressure and temperature from the approved piping class.

Step 2 — Valve types and ends

Common IBR boiler valves include gate (isolation), globe (regulation/blowdown auxiliaries), check/NRV (feed and steam non-return), and safety valves (separate sizing rules). Specify flanged or screwed ends per the approved drawing. Class or rating must match the boiler and piping design — do not assume Class 150 for all boiler auxiliaries.

Link product scope: IBR valves hub, companion WCB gate, globe, and swing check pages for non-IBR export duplicates when applicable.

Step 3 — Documentation pack

Request EN 10204 3.1 material certificates with heat numbers. For IBR, Form III / IIIc (as applicable to the component and approval route) and inspection stages must be planned in the ITP. Hydrostatic shell and seat tests should be recorded against serial numbers. GA drawings and nameplate data (IBR mark where required) should be approved before manufacture freezes.

Third-party or boiler inspector witness points should be listed in the PO. Late addition of witness requirements is a frequent cause of schedule slip.

Step 4 — Enquiry data that prevents rejection

Minimum RFQ fields: boiler working pressure and design pressure, temperature, media, valve type and size, quantity, end connection, material (often bronze/gunmetal for small IBR valves or WCB/steel for larger steam valves — follow the approved spec), required forms, delivery site, and inspection agency. Generate a structured text block with the interactive IBR checklist.

Also run a class sanity check with the pressure class selector for steel valves on high-pressure steam.

Step 5 — Installation and companion equipment

IBR valves must be installed per approved drawings. Support steam lines, provide drains, and protect seats from construction debris with strainers. Moisture carryover issues are mitigated with moisture separators and working traps — see the separator guide.

After installation, retain certificates with the boiler folder for renewals and audits. Missing Form III paperwork is harder to reconstruct years later than to file correctly at commissioning.

How Supreme Valves supports IBR enquiries

Send the completed checklist output to info@supremevalves.in or use quote builder. We do not publish public price lists; quotations reflect size, rating, documentation, and inspection scope. Explore tools on the tools hub including sizing and torque calculators for related steel valve packages.

Frequently asked questions