SMC Pneumatic Check Valve AK/AKH/AKB series

SMC AK Series Pneumatic Check Valve

Series AK/AKH/AKB check valves offer various configurations to provide design solutions based on operating conditions. The series is compact and lightweight with low cracking pressure. The AKH with one-touch fitting, straight type, is easily installed in pipelines, while the male connector type can be mounted directly onto equipment. The bushing type AKB can be used in applications with splashing coolant and spatter, etc.

  • Male connector type
  • Easily mounted onto equipment
  • One-touch fittings
  • Compact and light weight
  • Low cracking pressure (0.005MPa) .73PSI
  • Can be used for vacuum (-100kPa) -14.5PSI


Proof pressure1.5 MPa
Maximum operating pressure1 MPa–100 kPa to 1 MPa
Minimum operating pressure0.02 MPa0.005 MPa
Ambient and fluid temperature–5 to 60°C (No freezing)

Download Datasheet: SMC Pneumatic AK Check Valve