Product Description
- The SMC AKH check valve is used to prevent backflow in compressed air systems, particularly in applications involving tanks or storage modules.
- It is suitable for maintaining a vacuum for short periods and for protection against sudden pressure drops.
- Thanks to its compact design, it is ideal for installation in confined spaces or mobile systems.
- The non-return valve can be used with nylon, soft nylon or polyurethane hoses.
- The SMC AKH non-return valve consists of a nickel-plated brass body with an integrated valve made of NBR and aluminium alloy.
- A stainless steel spring ensures precise check valve function at a very low response pressure of 0.005 MPa.
- The valve body has a compact design and, thanks to large equivalent cross-sections ranging from 2.8 to 34 mm², allows for a high flow rate.
- The NBR O-ring ensures a reliable seal in a wide range of applications.
- The AKH non-return valve is fitted with a push-fit connection and an external thread. The versions with an R thread are also fitted with Teflon tape.
- Medium – Compressed air, oiled (recommended oil grade ISO VG32) or un-oiled
- Hose outer diameter – 4 to 12 mm
- Connection thread - M5 or R(PT) 1/8" to 1/2"
- Test pressure - 1.5 MPa
- Operating pressure range: -100 kPa to 1 MPa
- Actuation pressure - 0.005 MPa
- Ambient and fluid temperature - -5 to 60 °C
- Suitable hose materials – nylon, soft nylon, polyurethane
- Spanner size – 8 to 22 mm
- Length – 24.3 to 54.5 mm
- Weight – 5 to 80 g
- Price per item