Signs to Look For in Troubleshooting a Hydraulic Pressure Control Valve

pressure control valve

Two of the highly efficient power-producing machines invented in the history of engineering are the hydraulics and pneumatic systems. And most of the manufacturing and engineering industries, even with the most advanced technology in this century, still rely on the competence of hydraulics. A hydraulic system has several parts that allow the whole mechanism to operate smoothly. One of the major components of the unit is the pressure control valve. It helps regulate the amount of pressure released into the system. Having the same functions as other valves, the pressure control valve acts as the regulator when it comes to controlling the force that passes through the system.

A hydraulic system mainly runs through water resources. Water is physically described as an incompressible matter, and according to Pascal’s Law, any fluid placed in an enclosed container, when pressed, can create a sustainable force on the opposite side, which makes liquid the perfect element to operate the machine.

Pascal’s law assists the concept of hydraulics, wherein the mechanism is described as taking advantage of the incompressibility and the density of any liquid form to create a force. The said force is achieved through using a narrow container with liquid in it to produce a pressurised energy.

Types of Pressure Control Valve

Pressure Relief Valve – is the part of the pressure control valve that serves as a device that limits the amount of pressure according to the settings of the machine and assists the flow of excess water from the pipes back to the tank.

Pressure Reducing Valve – while the pressure relief valve is in charge of the input of force, the pressure reducing valve is in charge of the output of pressure. As most pressure control valves have no enclosure, the pressure reducing valve helps regulate the flow passed into the subsystem.

Signs to Troubleshoot Hydraulic Pressure Control Valves:

Relief Valve

  • pipes are misaligned
  • valve fitting is loose
  • springs on valves are worn out

Reducing Valves

  • orifices are blocked
  • the valve is not adjusted appropriately
  • visible impurities in oil

Sequence Valve

  • untimely flow delivers inappropriate loads
  • valves are damaged
  • gasket is leaking

Unloading Valve

  • Valve fails to unload the pump
  • coil fastens the pipeline
  • valve setting is above the standard limit

Where to Get Reliable Hydraulic Spares

Master Mac 2000 is one of the leading providers of hydraulic parts and units in Australia. We offer durable spare parts like pressure control valve and more. Being in the industry for three decades, our goal is to produce credible and efficient tools for your business. Should you want to seek professional advice regarding the issues of your unit, visit our website at today.

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About MasterMac2000: Your Trusted Pneumatic & Process Automation Partner.

LEADING THE INDUSTRY: Established in 1989, MasterMac2000 has grown to become one of Australia's largest privately owned pneumatic and process automation companies. We stock top-quality brands like Univer, Mack, Tolomatic, Mac, Piab, American, and Rotoflux in Brisbane.

SERVING QLD & NORTHERN NSW: We proudly service Queensland and Northern New South Wales for all your pneumatic and process equipment needs. Our mission is to provide the best pre and post-sales support while actively expanding our client base.

SOURCING HARD-TO-FIND PARTS: Not only do we stock quality components, but we also excel at sourcing those elusive, hard-to-find parts. With our extensive database and global network of contacts, getting the parts you require is as easy as a call to our highly skilled, professional sales team.


  • Decades of expertise in pneumatics & process automation
  • Carefully curated selection of world-class brands
  • Exceptional sourcing capabilities for speciality parts
  • Knowledgeable sales staff dedicated to finding solutions
  • Unwavering commitment to customer service excellence

About The Author

Stuart Havill

Stuart Havill is the owner and manager of MasterMac2000, Queensland's largest privately owned pneumatic and process valve company.

With his early working career as a maintenance fitter for Boral in 1992, Stuart has spent his life in the field of pneumatics and process equipment. He gained extensive experience in plant design, maintenance, repairs, fabrication, and site management.

In 1996, he transitioned to a pneumatic sales technician role at MasterMac2000, where he excelled in key account management, providing cost-effective solutions, and managing a sales team of 9 employees.

Since 2002, Stuart has been the manager at MasterMac2000, overseeing the company's growth and establishing it as a leader in pneumatic automation and process valve engineering. His expertise spans customer training, CRM setup, industrial compressor sizing and installation, and turn-key project management.

Under Stuart's leadership, MasterMac2000 has been servicing the industry since 1988, with 5 full-time sales representatives covering northern rivers NSW, Queensland, Northern Territory, and PNG. The company prides itself on providing the best-priced solutions to all customers in the marketplace.

View Stuart’s LinkedIn profile to learn more about his expertise in pneumatics and process equipment.

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