1. The external force required for commutation of CM3B, CM3L, CM3V and CM3R series is provided by an external mechanism and can be used for position detection or travel switch;2. CM3PF, CM3PM, CM3PMS, CM3PMX, CM3PL, CM3PP, CM3HS, CM3HD, and CM3Y series are manually operated and have various structural shapes of control heads to facilitate use under different conditions: 3. Cut-off structure, good sealing, flexible reversal, no need for lubrication: 4. Multi-position installation, easy to install and use;5. The CM3L, CM3V, CM3R, and CM3Y series control heads are made of metal, which has a long life and is more reliable and stable;6. CM3PMS and CM3PMX series are equipped with a metal protective cover, which can effectively protect the button cap and prevent external force from hitting the button cap and causing malfunction, making it safer and more reliable to use. Category: Mechanical Valve, Brand: Airtac, Series: CM3PMS