IBR Approved Valves for Indian Boiler Circuits — Documentation Guide

Technical guide · Supreme Valves India · Updated 2026-09-19

On Indian registered boilers, valve procurement is as much a documentation exercise as a metallurgy exercise. This article focuses on IBR approval workflow: scope identification, forms, material traceability, inspection sequencing, and the RFQ data that keeps plant, EPC, and boiler inspector aligned. For steam metallurgy, trim, and valve-type selection under IBR scope, use the companion article IBR certified valves for Indian boiler circuits.

What “IBR approved” means in procurement language

Buyers often write “IBR approved valve” or “IBR certified valve” on enquiries. In practice they need valves manufactured and documented so that the boiler inspector can accept them on a registered boiler or defined steam circuit. Acceptance rests on correct design ratings, material certificates tied to heat numbers, hydrostatic test evidence, and the forms prescribed under the Indian Boiler Regulations for that installation. A valve that is mechanically correct but undocumented will not clear inspection.

Supreme Valves India supplies API/ASME valves with IBR documentation support, EN 10204 3.1 material traceability, and export packs from Ahmedabad when projects also ship overseas.

Selection criteria that affect documentation

Before forms are raised, lock the engineering data that the inspector and manufacturer will both use:

• Line number, service (saturated steam, superheated steam, feedwater, blowdown, condensate)
• Design pressure and design temperature
• Valve type: gate, globe, check, ball, safety/relief (separate rules often apply to safety valves)
• Body material (commonly ASTM A216 WCB on carbon-steel steam — see WCB material guide)
• Pressure class per ASME B16.34 at design temperature — screen with the pressure class selector
• End connection and face-to-face standard
• Quantity, tagging, and which items are inside IBR scope versus non-IBR utility

Mis-matched pressure class (for example Class 150 valve on Class 300 flanges) is a common procurement error that delays FAT and site installation. Resolve class and facing before drawing submittals.

Standards referenced alongside IBR

IBR defines the regulatory framework for boilers in India. Product design and testing still reference industry standards:

• Gate valves: API 600 — see WCB gate valve and steam isolation guide
• Globe valves: API 623 / common ASME practice — WCB globe valve
• Ball valves: API 608 — WCB ball valve
• Check / NRV: API 594 / API 6D as applicable — NRV hub, WCB swing check
• Shell and seat tests: API 598 or EN 12266
• Material certificates: EN 10204 3.1 (or 3.2 when third-party endorsement is specified)

State both the product standard and “IBR documentation required” on the purchase order so manufacturing planning includes form lead time.

Documentation package — what inspectors look for

A typical IBR-ready package for isolation valves includes:

• GA drawing with materials of construction, pressure class, and end details
• Material test certificates with heat numbers matching body, bonnet, and trim heats where required
• Hydrostatic shell and seat test reports tied to serial numbers
• IBR forms as directed by the inspecting authority for the boiler owner
• Nameplate data consistent with drawings and certificates
• Packing list and serial cross-reference for multi-valve consignments

Incomplete heat-to-serial traceability is a frequent rejection reason. Do not split heats across valves without updating certificates. Third-party witness, when specified in the ITP, should be booked before hydro tests are completed offline.

Inspection sequence (practical workflow)

1. Confirm IBR scope on the line list with the owner and boiler inspector.
2. Issue RFQ with IBR flag, class, MOC, and document list — use the IBR valve checklist.
3. Review manufacturer GA and MOC against piping class.
4. Casting / forging and machining with heat tracking.
5. Hydro test and documentation compilation.
6. Inspector review / stamping steps as applicable to the circuit.
7. Dispatch with document set in the shipping pack (not only emailed PDFs).

Skipping step 1 and discovering IBR after casting starts is the most expensive failure mode in this workflow.

Failure modes in the approval process

• Scope ambiguity — Mixing IBR and non-IBR items on one PO without tags.
• Late document request — Asking for IBR forms after test benches are cleared.
• Certificate mismatch — Heat numbers on MTC do not match nameplates or test reports.
• Wrong class or temperature — Drawings show a rating that fails ASME B16.34 at design T.
• Missing companion equipment notes — Wet steam systems need drainage and often a moisture separator; inspectors and process engineers both query incomplete P&IDs.

RFQ checklist (documentation-focused)

• Boiler registration / project reference and inspector contact if available
• Valve type, NPS/DN, class, quantity, tag numbers
• Body / trim / bolting materials
• Design P, T, media
• Ends and facing
• Explicit “IBR documentation required” and form list if known
• Test standard, MTC type (3.1 / 3.2), TPI agency if any
• Delivery location and whether documents ship with goods

Generate a structured enquiry with the IBR checklist tool. Product entry point: IBR valves. Engineering aids: pressure class selector, calculators.

Related valve types on boiler circuits

Isolation: WCB gate, WCB globe, WCB ball. Non-return: WCB swing check, NRV types. Steam quality: moisture separator.

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