Pre-selection for industrial process valves

Which valve for your duty? Get a spec-ready answer in 60 seconds.

Tell us what the valve has to do, your medium, pressure, temperature and size. Our rule base screens all five valve types against their published envelopes — function, compatibility, ASME B16.34 pressure-temperature ratings, body and seat gates — then generates an RFQ-ready specification sheet you can send to any manufacturer.

Pre-selection reports are engineering aids, not final specifications — valve selection, materials, pressure class and testing scope must be confirmed with the manufacturer's engineering team.
Scope: industrial process valves — ball, gate, globe, check and butterfly. Control valves and safety/relief valves are deliberately out of scope — when your duty points there, this tool tells you so rather than guessing.
This is a free tool supported by Chinese manufacturing partners: on request, we can forward your inquiry to valve manufacturers we work with — that is how this tool stays free. We do not endorse, warrant, or act as agent for any manufacturer; supplier evaluation and due diligence remain your sole responsibility.

Your duty conditions

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°Bé goes to our team first — no safe automatic conversion (same rule as our sister tools).
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Industry News
Pilot-Operated Safety Valves: A Chinese Maker's ASME UV and NB Certification, Witnessed in the US 2026-10-29
A Chinese maker's pilot-operated safety valves pass ASME/NBBI-witnessed capacity tests — UV and NB certification earned, the US market-access layer for relief valves.
Valve Terminology Goes to ISO: A China-Led International Standard Passes Its New-Project Ballot 2026-10-26
ISO/NP 26798 — a China-led terminology standard for industrial valve types and components — passes the ISO/TC 153 new-project ballot after four years of work.
Polyolefin-Elastomer Plant Valves: A Wenzhou Maker Leads the Package at Shaanxi Coal's New Materials Project 2026-10-22
A Wenzhou maker is first-ranked candidate for a five-family valve package at a Shaanxi polyolefin-elastomer demonstration plant — RMB 9.89 million, candidate stage.
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Technical Insights
The UV Stamp: What an ASME-Certified Pressure Relief Valve Actually Went Through 2026-10-29
The UV stamp is the visible end of a certification chain — Section XIII consolidated the rules in 2021; witnessed capacity tests and production sampling sit behind it.
Valves for Caustic Service: The 60 °C Line, the Nickel Answer, and the Freeze You Forget 2026-10-26
Caustic service has two temperature boundaries — the 60 °C SCC line and the 12 °C freeze — and a public material map that is older than most of the failures.
IOGP S-562 Version 4.0: The Owner Overlay Reaches the Pipeline's Commonest Valve 2026-10-22
IOGP S-562 hits version 4.0 — the owner overlay for the pipeline's commonest valve, keeping pace with API 6D's new legal weight.
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