Define the duty before selecting components
Begin with working pressure, required flow, actuator speed, cycle frequency, load and environmental conditions. Oversized components waste air and increase cost; undersized valves and tubes create pressure drop and unstable motion.
Air preparation
Clean, dry and correctly regulated air is fundamental to reliability. Select filters for the required particle and moisture removal, size the regulator for peak flow, and use lubrication only when the downstream components require it. Provide a safe isolation and pressure-release method for maintenance.
Valves and actuators
Match valve function, port size, flow coefficient, voltage and manual override to the control design. For cylinders, calculate force using the effective piston area and realistic system pressure, then include a suitable safety margin. Check stroke, mounting, cushioning and sensor requirements.
Tubing and fittings
Polyurethane tubing is flexible and convenient for moving equipment, while other materials may be preferable for high temperature or aggressive chemicals. Match tube outside diameter to push-in fittings, cut tube ends squarely and avoid tight bends. Use O-ring face-seal fittings where their thread and port geometry are compatible.
Procurement checklist
- Working and maximum pressure
- Required flow and acceptable pressure drop
- Port thread and tube outside diameter
- Temperature, chemicals and outdoor exposure
- Electrical voltage and connector type
- Availability of seals and replacement parts
KFG Power can review your pneumatic diagram and bill of materials to help identify compatible components.
