DONT DROP YOUR LOAD IF YOUR HOSE BURSTS!
SAFEX (TM) valves are designed to be mounted directly to the boom and/or the stick (arm) cylinders of hydraulic excavators. With the correct installation and adjustment these valves prevent uncontrolled lowering of the boom/stick cylinders in the event of a hose burst, thereby becoming part of the load holding and lowering system designed to comply with AS 1418.8 / ISO 8643.
Contact Hyspecs / Hydraulic Specialties for more information.
Download the brochure here: http://www.hyspecs.co.nz/DataSheets/HyspecsSafexValve.pdf