Differences Between Manual and Pneumatic Valves
1. Control Method
Manual Valves:
Operated manually via handles or handwheels to regulate fluid flow and pressure. Simple, cost-effective, and requires no external power source.
Pneumatic Valves:
Controlled by air pressure to open/close the valve, often using pneumatic actuators for remote operation. Reliable, fast response, and high precision, ideal for high-flow, high-precision applications.
2. Control Accuracy
Manual Valves:
Lower precision due to human operation variability, sufficient for low-accuracy requirements.
Pneumatic Valves:
Higher precision with rapid response, enabling precise flow/pressure control for critical applications.
3. Application Scenarios
Manual Valves:
Best for low-flow, low-pressure systems where manual operation is feasible and control demands are minimal.
Pneumatic Valves:
Suited for high-flow, high-pressure systems requiring automation and precise control (e.g., chemical plants, power generation).
