BoomLoc Valves – Explained

Robin Daughtry | December 6th, 2013

Designed & Tested to ISO8643

Our Supplier Partner Eaton Describes in Depth how BoomLoc Valves can be Applied to Numerous Different Machines

Eaton Article: The requirement for hose rupture protection on mobile plant is enshrined in law in many territories and likely to become so in many others. ISO8643 requires that, in the event of a hose failure while lowering a boom it should not accelerate to more than twice its original speed with the control lever held in the same position. Additionally the valves introduced to achieve this should not unduly effect the operation of the machine to which they are fitted. (The current 100% maximum increase may be reduced to 75% in the future). If a hose were to fail while a boom is lifting or static the load should be held in position.  Eaton has developed a range of hose rupture valves, designated “BoomLoc”, that are designed to meet the stipulations of ISO8643 and can be applied to numerous different machines.

Latest Cross Company Updates

Learn how Bodine AC synchronous gearmotors eliminate the need for bulky chains and sprockets.
July 30, 2026
Cross Company is pleased to announce our partnership with Hamilton Company to provide analytical process instrumentation.
July 30, 2026
In the rapidly evolving off-highway sector, achieving the perfect balance between heavy-duty lifting capacity and precise control is critical.
July 14, 2026
This application note from our partner Clippard, explores the use of their valves to achieve optimal cell culture growth in bioreactors.
July 14, 2026
In critical medical applications like respiratory support, precision and reliability aren’t just goals, they are life-saving necessities. See how Clippard EV valves and Cordis series regulate life-saving gases.
July 13, 2026

Contact our Team

Hang Tight! We're Searching... Searching... Searching...

We’re looking through thousands of pages to find the most relevant information.

In the meantime, enjoy these fun facts…

Did you know… Cross Company is an ESOP (Employee Stock Ownership Plan). Our ESOP started in 1979 and as of 2006, we are 100% employee-owned! Learn more about our ESOP and how that benefits both team members and our customers.
Did you know... the precision measurement group at Cross was founded in 1939 by our current CEO's grandfather, Jim King. That's a whole lot of calibration!
Did you know... A fingerprint weighs about 50 micrograms. We know, we weighed it! The residue left from a finger can actually make a difference in weight results which is why we wear gloves when we calibrate weights. For reference, a sheet of paper is about 4.5 grams, that’s 4.5 million micrograms.
Did you know… Cross Company has grown significantly since our start in 1954. Over the years we've acquired 26 companies! Today, our five groups have expertise in everything from industrial automation to precision measurement, and industry knowledge going all the way back to 1939.