Fluid Controls Ltd is one of the UK’s leading distributors for pressure control
Difference between relieving and non relieving pressure regulators

What is the difference between a relieving and a non-relieving regulator?

In this blog, Fluid Controls discusses the difference between relieving and non-relieving pressure regulators and the advantages of both options.

The difference between a relieving and non-relieving regulator

When the pressure in a system becomes too high, a relieving regulator stops the flow of the pressure and opens a vent, which allows the pressure to escape. The vent stays open until the levels of pressure within the system return back to normal, then the regulator resets. It allows the excess downstream pressure to be released.

Whilst a relieving regulator allows the excess pressure to escape, a non-relieving regulator restricts the flow once the pressure increases but doesn’t release it, instead trapping it. This means that another mechanism is required to relieve the pressure elsewhere.

The difference between a relieving and non-relieving regulator is extremely important when considering the application the regulator will be used for.

Relieving vs non-relieving regulator

A positive of a relieving regulator is that it not only regulates the pressure, it also lets the excess escape. Because of this function, it means that instead of adding in a relief valve to your system to do this job, the self-relieving regulator will release the pressure by itself.

A non-relieving regulator is more suited to hazardous applications because it doesn’t release the excess pressure. When it traps the extra gases or air, it ensures that flammable, expensive or dangerous gases aren’t just released into the atmosphere, their release is instead controlled.

Fluid Controls’ relieving and non-relieving regulators

When it comes to understanding relieving vs non relieving regulators, in accordance to your particular application, our team are on hand to help. An example of non-relieving would be our Porter range of regulators whilst some of our products, like the J46 Spring Loaded Regulator from Thompson Valves, come with the option of relieving or non-relieving.

For more information regarding which one of our products would be best suited to you, talk to one of our technical experts today by calling 0118 970 2060, or email us with any questions at fluid@fluidcontrols.co.uk.

Latest News

Maxseal's IFR Range of Filter Regulators At Fluid Controls, we are proud suppliers of Maxseal filter regulators. Coming under the umbrella of IMI Norgren, Maxseal is a respected brand within the industry. With over 50 years’ experience producing efficient and durable filter regulators, Maxseal products stand the test of time. In this article,... Read More
How does a solenoid valve work? Solenoid valves are electromechanically operated valves that convert electric energy into mechanical energy. Their main purpose is to regulate the movement of gas or liquid and eradicate the need for an engineer to manually control the valve, saving time and money. But how does a solenoid valve work?... Read More
Discover Fluid Controls’ range of Maxseal products Norgren Maxseal produces high-quality solenoid valves that have been created with dependability and hardiness in mind. Our high specification range of Maxseal solenoid valves includes the ICO4S and ICO3S. Here at Fluid Controls, we also provide the Maxseal IFR range of filter regulators, which provide... Read More
Why control pressure with a pressure regulator? Pressure regulators are extremely important to the safe running of applications that use gases and liquids under pressure. Pressure regulators are valves that work by cutting off the flow of a gas or liquid when it hits a certain pressure. They are found in many common home and industrial applications,... Read More
All you need to know about electronic pressure regulators In recent years, electronic pressure regulators have really come into their own. They offer higher pressure, more flexibility and extra robustness compared to previous technologies. That’s why here at Fluid Controls we supply a wide variety of electronic pressure regulators from brands such as Proportion... Read More