steam valves
4 in-depth engineering guides on steam valves — specification, selection, testing and procurement.
Everything on steam valves
Vajra's engineering team has published 4 technical guides covering steam valves 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.
High-Temperature Valve Selection Guide - Above 300°C to 600°C
Selecting valves above 300°C requires Cr-Mo alloy steel bodies, Stellite trim, graphite packing, and verification against API 941 Nelson curves - this guide explains every decision point.
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.
Gate Valve Wedge Types: Solid, Flexible, Split, Parallel Slide - Selection Guide
The gate valve family encompasses several distinct wedge and disc designs - each optimised for specific operating conditions. Selecting the wrong wedge type leads to galling, thermal binding, difficulty operating, or poor sealing. This guide covers solid wedge, flexible wedge, split wedge, and parallel slide designs with selection criteria for each.
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