The Ultimate Guide to Your Special Purpose Valves and Actuators
Lily Mckeown | 26/01/2026
Special Purpose Valves & Actuators Built for Harsh Environments
When hydraulic systems are pushed to their limits, standard components often aren’t enough. In demanding industries where downtime is expensive and safety is critical, performance has to be reliable, repeatable and built to last.
With more than six decades of experience in hydraulic design and engineering DHX supplies special purpose valves and actuators engineered to perform in extreme operating conditions. These bespoke units are regularly specified for tough applications in sectors such as mining, petrochemical processing and other environments where heat, pressure, corrosion and heavy duty cycles are part of daily operation.
To understand why these systems make a difference, it helps to look at how they’re designed, tested and tailored to real world demands.
More Than Hydraulics: Multi Technology Design Capabilities
Although hydraulics are at the core of what we do, many modern systems require more flexible control solutions. That’s why DHX also designs valves and cylinders that can integrate:
- Hydraulic Power
- Pneumatic control
- Electrical actuation
The right solution depends on the operating environment, the system layout and the level of control required. By working across multiple technologies, we’re able to produce specialist systems that fit seamlessly into existing equipment while improving operational efficiency and consistency.
Bespoke Valve and Actuator Where Accuracy Matters
Industries today demand more than just “good enough”. Accuracy, endurance and reliability are essential, especially when equipment is operating in remote, hazardous or high risk environments.
In sectors such as offshore installations, subsea operations or energy extraction projects, a minor failure can quickly turn into major downtime, costly repairs and operational disruption. That’s why our special purpose valves and actuators are built around one goal: long-term performance under pressure.
Every system is designed to match the customers specification and expected conditions, using robust materials and proven engineering techniques that support repeatable, dependable operation even in extreme environments.
A Build Process Designed Around Your Application
Our team works closely with clients to establish key requirements such as:
- Valve or actuator size and physical constraints
- Operating pressure and duty cycle
- Exposure to corrosive or abrasive substances
- Integration requirements within the wider system
- Delivery timescales and project deadlines
Hydraulic Power Unit for disconnecting ERC couplings | Valves
Tested and Certified Before It Reaches Site
We know reliability isn’t something you can simply assume, it has to be proven.
To ensure that every one of our valves and actuators perform exactly as expected, we use an in house test rig to measure performance, validate operation and confirm that the finished unit is ready for real working conditions.
This testing stage helps reduce long-term risk, ensures confidence in the final build and gives you the customer reassurance that the system will perform as intended once installed.
Choosing the Right Special Purpose Valve: What Matters Most
Before development begins, it helps to have a clear view of what the system will face in the field. The most important considerations usually include operating pressures, environmental exposure and performance expectations over time.
Even factors such as friction reduction, sealing performance and lubrication requirements can become critical depending on the application. DHX engineers work through these details with you during consultation, ensuring nothing is missed and the final design is built around real operational demands.
If you’re looking for special purpose valves, custom hydraulic actuators, or engineered solutions designed around demanding working environments, our team is ready to help.
To discuss a project or request further information, contact DHX today below and speak with one of our qualified representatives.
