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Engineering Tool · Process Equipment

Pneumatic Actuator Torque Comparator

Compare opening and closing valve torque requirements with entered air and spring torque curves across the full stroke; generic inputs do not select a final actuator.

Pipeline hydraulicsStage 05 — Equipment Selection Review
Status
Live Engineering Tool
Modes
Rack & Pinion / Scotch Yoke
Conditions
Double-acting / Spring-return
Units
Metric / Imperial
ATLAS WTS · Process Engineering

Pneumatic Actuator Torque Comparator

Preliminary comparison of opening and closing valve torque requirements against air and spring torque curves across the full 0–90° stroke. Generic inputs do not produce a final actuator selection.

Valve & Media

Traceability input only. Re-enter torque points from the manufacturer curve at this pressure; no generic pressure scaling is inferred.

Actuator Torque Rating

Enter traceable manufacturer-published air and, for spring-return mode, spring torque at each rated stroke position. Opening/closing fail direction and process safe position are not mapped here.

PRELIMINARY COMPARATOR ONLY — a screening margin is not a selection PASS. Confirm the valve data sheet, actuator model/catalog curve, supply-pressure condition, opening/closing requirements, and fail-safe direction before procurement.
Torque Curve
Torque Table

Powered by ATLAS WTS

01

Engineering Basis

Methodology

Rack & pinion curves use manufacturer-published torque at each rated stroke position, held constant (double-acting) or linearly interpolated (spring-return) across the 0–90° stroke.

Scotch yoke curves follow the non-linear torque profile characteristic of the mechanism, checked at every tabulated angle — not just the stroke endpoints — to catch mid-stroke margin failures other tools miss.

Assumptions

  • The comparison uses torque curves only.
  • Supply-pressure traceability is required.
  • Opening and closing torque requirements are checked across the full stroke.

Scope / Limitations

  • This is a preliminary torque comparator, not a final actuator selection or PASS.
  • Fail position and process safe position are not mapped. Confirm manufacturer data, supply pressure, valve-specific data, and physical fit before final selection.
02

Engineering Path

Workflow

  • Pipeline hydraulics An engineering-system workflow from source and pipe-network definition through friction/pressure evaluation, air management, and equipment selection.
    Stage 05 — Equipment Selection ReviewReturn to Stage 05
03

Related Resources

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