AD
The AD600 series auto drain valve automatically discharges drainage. It is highly resistant to dust and corrosion. This series operates in a reliable manner, without requiring human operators. A case guard is provided as standard equipment.

AD402-A, Auto Drain Valve
The AD402-A is the improved version of SMC's proven AD402 auto drain design. These enhancements include an improved resistance to foreign matter, increased discharge rate and reduced weight.
- Improved environmental resistance with transparent bowl guard
- 360° visibility of bowl contents
- Reduced maintenance space and easier maintenance
- Now with three bowl material choices: polycarbonate, nylon (new), aluminum
- Top and side entry types available
Product & CAD Models
- Actuators
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Electric Actuators
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