IBR
7 in-depth engineering guides on IBR — specification, selection, testing and procurement.
Everything on IBR
Vajra's engineering team has published 7 technical guides covering IBR for industrial valve selection, specification, testing and procurement. Browse the full set below.
Parallel Slide Gate Valves: Design, Thermal Advantages and Steam Applications
Parallel slide gate valves solve a problem that defeats wedge gate valves in high-temperature steam service: thermal binding. This guide explains their spring-loaded disc design and where they outperform wedge gates.
Boiler Blowdown Valves: Continuous and Intermittent Blowdown Selection
Boiler blowdown removes accumulated dissolved solids and sludge to keep steam quality high and prevent scale and carryover. The valves that do it face flashing, high pressure, and abrasive service. This guide covers continuous and intermittent blowdown valves, tandem arrangements, and IBR requirements.
Valve Selection for Steam Service - Pressure Classes, Materials & IBR Certification
Steam service spans from 1 bar utility steam to 300 bar supercritical steam. Material selection, pressure class, and IBR certification requirements differ dramatically across this range.
Globe Valves for Steam Service: T-Pattern vs Y-Pattern, Pressure Seal vs Bolted Bonnet
Globe valves are the primary throttling and control isolation valve in steam systems. Selecting the wrong pattern or bonnet type for the steam pressure class results in wire-drawing damage, stem leakage, or premature failure. This guide covers T-pattern vs Y-pattern design, bonnet selection, and stem packing for Class 150 to Class 2500 steam service.
Valve Selection for Power Plants: Steam, Feedwater & Turbine Service
Thermal power plants operate at steam temperatures up to 620°C and pressures exceeding 250 bar. Valve failures in steam service are catastrophic - this guide covers IBR compliance, high-temperature alloy steels, steam trap selection, and turbine bypass specifications for coal, gas, and combined-cycle power stations.
Valve Procurement and Export from India: Documentation, Duties & Lead Times
India is a major global supplier of industrial valves - WCB, SS 316, and alloy steel valves manufactured in Gujarat (Vadodara, Ahmedabad) and Maharashtra (Mumbai, Pune) are exported to over 60 countries. This guide covers the complete export process: DGFT procedures, HS codes, Certificate of Origin, IBR certification for steam service, FTA benefits, and realistic lead times for different valve categories.
IBR Valve Certification in India - Who Needs It and How to Get Compliant
The Indian Boilers Regulation (IBR) Act 1950 is India's statutory framework for the safe use of steam boilers and associated pressure equipment. Any valve installed in IBR-applicable steam or hot water systems must carry IBR approval - this includes gate valves, globe valves, check valves, safety valves, and ball valves on steam lines above 0.5 kg/cm². This guide explains the complete IBR framework for valves.
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