The ESV pipe-rupture valve for excavators

Excavator pipe-rupture valves prevent uncontrolled cylinder movement in the event that a pipe or hose bursts. The ESV valve fulfills all of the requirements of the ISO 8643  and EN 474-5 standards for excavators.

Advantages

• Standard construction, direct operated 
• Pressure relief valve is unaffected by back pressure
• Only a drain line is needed; no large tank line necessary
• Various configurations available

Technical data

Unit

Value

Nominal flow rate

Operating pressure

l/min

bar

250/350/500*

420

Models

Tandem arrangement (simplified)

Applications

• Excavators
• Excavator-loaders 
• Front loaders 
• Rear loaders