SMC Coupling for KKA

The SMC Coupling for KKA, model KKA4S-04F, is a stainless steel socket-type quick coupler engineered to provide reliable, grease-free connections in air and water preparation systems. Constructed from SUS304 stainless steel with a fluororubber (FKM) seal, this coupling delivers exceptional corrosion resistance and durability, making it a favourite option for demanding industrial environments. Designed as part of the KKA series, the KKA4S-04F features integral check valves on both plug and socket to minimize liquid dripping and prevent unwanted aeration when disconnected. With a compact, slimline body that optimizes flow capacity and reduces installation space, this coupling meets the rigorous standards of modern pneumatic systems, ensuring consistent performance under fluctuating pressures and temperatures.

Why Buy KKA4S-04F Stainless Steel Coupling?

Investing in the KKA4S-04F means choosing a coupling that combines robust construction with precision engineering. Its non-greased design reduces maintenance needs and contamination risks, while the built-in check valves safeguard against leaks and protect downstream components. Backed by SMC’s reputation for quality and supported by comprehensive technical documentation, the KKA4S-04F ensures seamless integration into existing KKA series setups and delivers long-term reliability in both pneumatic and water applications.

Product Special Features:

• Body material: SUS304 stainless steel
• Seal material: Fluororubber (Special FKM)
• Non-greased specification for clean operation
• Integral check valves on both plug and socket to reduce drip and aeration
• Operating pressure range: 0 to 1 MPa with proof pressure up to 10 MPa
• Temperature range: –5 °C to 150 °C
• 1/2 in BSPT female threaded socket ensuring secure connection
• Slim, compact design for space-saving installation and high flow efficiency.

For more information please check the datasheets.