The 77KB series is a double shut-off hydraulic coupling used for liquid media. The plug profile is manufactured in accordance with ISO-7241-1, series B. All versions mentioned below are manufactured from non-rusting stainless steel or POM. This coupling requires two handed operation (the sleeve must be manually pulled back when connecting).

Simple, yet rugged construction guarantees the highest safety.

PB = 10 bar (at 50°C)
maximum static working pressure with safety factor of 4 to 1.

-20°C up to +90°C (NBR)
-40°C up to +90°C (EPDM)
-15°C up to +90°C (FKM)
0°C up to +90°C (FFKM)
depending on the medium.

*At a temperature below -40°C and above +90°C special seals are available on request.

Material Coupling	Standard
Valve Body Sleeve Valve Spring and Locking Ring Locking Balls Seals Spring Plate, Locking Ring	POM, white POM, white AISI 303 AISI 301 AISI 316 NBR AISI 301
Plug
Plug Profile Valve Spring Seal Spring Plate	POM, white AISI 303 AISI 316 Ti NBR AISI 301