Pneumatic Actuator Stroke Time
Analysis of 90° rotation performance factors
1. Core Performance Metrics
Rack-and-pinion
0.5–2 seconds (industrial standard)
Vane-type
0.3–1.5 seconds (simpler mechanics)
Scotch yoke
1–5 seconds (high-torque applications)
2. Key Influencing Factors
Air Pressure
1 bar increase reduces stroke time by ~20%
Flow Rate
Undersized tubing causes pressure drops
| Valve Type | Typical Stroke Time |
|---|---|
| Ball valves | 0.5-1.5s (low torque) |
| Butterfly valves | 1-3s (higher torque) |
3. Industry Standards
Emergency shutdown valves: <0.5s (10-15 bar)
Process control valves: 1-3s (balanced motion)
ISO 5211: Specifies mounting interfaces
4. Optimization Strategies
Performance Enhancements
Larger diameter tubing (25% flow increase)
20% torque oversizing (reduces load stress)
5/2-way valves (faster exhaust)
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