Hydraulic limit valves

Shut-off and check valves , these types of valves are installed on trailers - they are used to limit the actuator extension ( protect against excessive actuator extension ) The most popular valves of this type are valves with M22x1,5 threads. The valve lock is activated by a steel cable attached to the valve handle. A power hydraulics element used in trailers and cargo semi-trailers. 

Technical parameters : 

• construction : galvanized free-cutting steel 
• production : PISTER  ( Europe ) 
• purpose : protecting the actuator from extension 
• max pressure: 350bar

What are limit valves ?

Limit valves, also known as hydraulic limit valves, are precision control elements used in hydraulic systems. Their main function is to control the flow of hydraulic fluid, which allows for achieving specific operating states in devices, such as stopping the movement of components, protecting the system against excessive pressure, or maintaining a designated position of working elements. Thanks to their versatility, limit valves play a key role in ensuring the reliability and safety of machinery operation.

Construction and principle of operation of limit valves

Limit valves are constructed from durable materials, such as steel or cast iron, which ensures their resistance to high pressures and extreme working conditions. Their operation is based on a mechanism that responds to reaching a specific position of a working element or pressure in the hydraulic system. In accordance with the model, limit valves can be equipped with additional functions, such as pressure regulation or flow blocking in both directions.

Application of limit valves

Limit valves find wide application in many industrial sectors, especially where precise control over the movement of working elements is key. Typical areas of their use include: Construction and agricultural machinery – in controlling the movement of booms, actuators, or hydraulic arms. Heavy industry – in production systems requiring precise synchronization of machine movements. Transport equipment – in the automation of loading and unloading processes. 

Order now and improve your work !

Hydron offers a wide selection of limit valves tailored to various types of hydraulic systems. Products in this category are characterized by high quality of workmanship, compliance with international standards, and excellent durability. The valves we offer are compatible with various systems, so you will find the perfect solution for your project. Additionally, our team of experts provides professional assistance in choosing the right model.