API 600
7 in-depth engineering guides on API 600 — specification, selection, testing and procurement.
Everything on API 600
Vajra's engineering team has published 7 technical guides covering API 600 for industrial valve selection, specification, testing and procurement. Browse the full set below.
Cast vs Forged Valve Bodies - Engineering Comparison, Applications and When to Specify Each
The choice between a cast valve body (shaped by pouring molten metal into a mould) and a forged valve body (shaped by pressing or hammering heated metal billet under high pressure) affects mechanical strength, size range, lead time, cost, and the applicable design standard.
API 6D vs API 600 vs API 602 Gate Valve - Key Differences Explained
API 6D, API 600, and API 602 all cover steel gate valves but for very different applications - pipeline, process plant, and compact forged respectively. This guide explains which to specify.
Gate Valve vs Ball Valve - How to Choose the Right Isolation Valve
Gate valves and ball valves both provide on/off isolation, but each excels in specific size ranges, pressure classes, and service conditions. Here's a definitive selection guide.
Pressure Seal Bonnet Gate Valves: Class 900–2500 Selection Guide | API 600 | Vajra
Pressure seal bonnet gate valves use internal pressure to increase sealing force - making them the preferred design for Class 900–2500 high-pressure steam, feedwater, and hydrogen service where bolted bonnets become impractical.
Gate Valve Types: Wedge, Slab, Knife Gate, OS&Y and More
Gate valves come in dozens of configurations - solid wedge, flexible wedge, slab gate, through-conduit, knife gate, rising stem, non-rising stem. Choosing the wrong type for your service leads to premature wear, seat leakage, or operational problems. This guide covers every gate valve type with applications and selection criteria.
Forged vs Cast Valve Body: Which Should You Specify?
Forged and cast valve bodies have different mechanical properties, pressure ratings, and cost structures. Understanding when to specify each - and what the relevant standards require - is fundamental to good valve specification.
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.
Related topics
Need valves engineered for API 600?
Our engineering team writes these guides and supplies the valves. Send your requirement for a specification review and a 24-hour quote.