Choose the right valve, with the rationale behind it.
A guided workflow for process, mechanical and piping engineers. Capture service conditions, valve duty and special service flags — get a defensible recommendation with references, alternatives, and engineering cautions.
Start Selection
Project & line data
Review Inputs
Service conditions
Generate Recommendation
Run the engine
Export Report
PDF / printable
HP Steam Header — Block Valve
P-2041 · Saturated Steam
Amine Regen Bottoms
P-2039 · Lean Amine, sour
LNG Loading Line ESDV
P-2034 · LNG, cryogenic
Cooling Water Isolation
P-2027 · Treated water
Fire-safe required
Hydrocarbon service above 0.5 barg should default to API 607 / 6FA fire-tested designs.
Cryogenic temperature
Below −46 °C use extended bonnet, ASTM A352 LCC body, and qualified low-temp trim.
Sour service
Confirm NACE MR0175 / ISO 15156 hardness limits on all wetted parts and bolting.
API 600
Bolted-bonnet steel gate valves for petroleum / NG industries.
API 602
Compact steel gate, globe and check valves for sizes ≤ NPS 4.
API 6D
Pipeline ball, plug, gate and check valve specification.
API 607 / 6FA
Fire test for quarter-turn / soft-seated valves.
ASME B16.34
Pressure-temperature ratings for flanged, threaded, welded valves.
NACE MR0175
Materials for use in H₂S-containing environments (sour service).
Engineering Decision Support Tool - Screening / Internal Review Use unless independently validated.
Outputs are generated for engineering screening and decision support only. Final responsibility for standards compliance, engineering judgment, specification verification, and approved project use remains with the user organization and qualified reviewing engineer.