What is a pressure reducing regulator?
Pressure reducing regulators are used to maintain a set downstream pressure point by reducing the supply, also known as inlet pressure, of a fluid or gas to a lower outlet pressure.
Pressure Reducing Regulators
The sliding gate pressure reducing valves are ideal for steam, liquid and gas media. A variety of regulators are available including self-operated, high flow, differential, vacuum, air loaded and pilot operated.
Pressure reducing regulators from Jordan Valve are designed to meet a wide range of specifications and applications, including self-operated and pilot-operated configurations.
Pressure reducing valves with a sliding gate achieve levels of performance, reliability and accuracy that are not found in other valve designs.
We have a variety of pressure regulating valves available, including self-operated, high flow, differential, vacuum, air-loaded and pilot-operated. Many of our pressure regulating valves have the sliding gate technology which offers precise control in a variety of applications.
Mark 60 Series ⟶
Self-Operated Sliding Gate Pressure Reducing Regulator; Quick Ship Available
Mark 601/602 Series ⟶
Self-Operated, High Flows
Mark 60HP Series ⟶
High Pressure Regulator
Mark 61 Series ⟶
High Sensitivity
Mark 62 Series ⟶
Internally Piloted Regulator
Mark 63/64 Series ⟶
Differential Pressure Regulators; Sliding Gate Seat; 1/4″ – 2″ (DN8 – DN50);
Mark 65 Series ⟶
Downstream Vacuum Regulator, Sliding Gate Seat; 1/2″ – 2″ (DN15 – DN50)
Mark 66/660 Series ⟶
Air Loaded Pressure Reducing Regulator, Sliding Gate Seat, High Accuracy
Mark 67/69 Series ⟶
Pilot-Operated, High Flow
Mark 675 Series ⟶
Wafer Style, Jorlon Diaphragm
Mark 68G Series ⟶
Pressure Reducing Globe Valve, High Capacity, Accurate; Sizes: 1/4″ – 2″ (DN8 – DN50)
Mark 68HP Series ⟶
High Pressure Regulator
Mark 686G Series ⟶
Air-Loaded, Globe Trim, ANSI IV or VI
Mark 608 Series ⟶
Direct Operated Tank Padding Regulator or
Gas Pressure Reducing Regulator for Low Pressures
1-1/2" - 2" (DN40 - DN50)
Mark 608BP Series ⟶
Direct Operated Tank Padding Regulator or
Gas Pressure Reducing Regulator for Low Pressures
3/4" - 1" (DN20 - DN25); Balanced Plug - Good for High Inlet Pressures
Mark 608IS Series ⟶
Direct Operated Tank Padding Regulator or
Gas Pressure Reducing Regulator for Low Pressure
3/4" - 1-1/4" (DN20 - DN32); Internal Sensing - Good for Low Inlet Pressure
Mark 627 Series ⟶
Self-Operated Pressure Reducing Gas Regulator, High Inlet Pressure; 3/4″ - 2″ (DN20 - DN50)
Mark 630 Series ⟶
Gas Regulator, Self-Operated, High Inlet Pressure
Mark 687 Series ⟶
Piloted Pressure Reducing Regulator for
Critical Low Pressure, High Flow Applications
1-1/2" - 2" (DN40 - DN50); Balanced Plug
Mark 688 Series ⟶
Piloted Tank Padding Regulator or
Gas Pressure Reducing Regulator for Low Pressures
1" - 2" (DN25 - DN50)
Mark 695 Series (3/4″ – 1″) ⟶
Piloted Tank Padding Regulator
3/4", 1" (DN20, DN25); External Pilot
Mark 695 Series – 2″ ⟶
Piloted Tank Padding Regulator
2" (DN50); Internal Pilot
Mark 695X Series ⟶
Direct Operated Tank Padding Regulator
1/2" - 3/4" (DN15 - DN20)
Mark 608BPM Series ⟶
Pressure Regulators
Mark 608MM Series ⟶
Pressure Regulators
Mark 608UBAN Series ⟶
Pressure Regulators
Mark 6127 Series ⟶
Piloted, Liquid Pressure Regulating Valves
Y-Type Strainers ⟶
Line Strainers
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For assistance choosing the right pressure reducing regulator for your application, use our sizing software program or contact your local representative.
How Do Pressure Reducing Regulators Work?
Pressure reducing regulators monitor the downstream pressure and do not need any external power or air source to operate. Instead, they work by force balance. There are 4 main parts to a pressure regulator:
- Set screw
- Spring
- Diaphragm
- Plug
The compressed spring and diaphragm are the two opposing forces and the plug acts as the balance between the two. The set screw is used to show the regulator how much pressure we want by turning it to compress the spring. A compressed spring generates a force causing it to push down. This opens the plug and results in more flow (of water, air, or other media).
If there is a change in the controlled pressure, the diaphragm will be forced to move. For example, the pilot plug will allow upstream gas to flow under the diaphragm where the pressure is controlled by the position of the plunger. If any pressure exceeds your set point, the pressure below the diaphragm will be pushed up, closing off the pilot plug.
Benefits of Using Pressure Regulating Valves
Some benefits of using a pressure regulating valve include:
- Pressure regulators are much faster in response time because there is no need to go back to the controller.
- Regulators can respond immediately to changes in the controlled pressure.
- Regulators are usually easier to maintain and are cheaper to install.
Applications for Pressure Reducing Valves
Our sliding gate pressure reducing valves are ideal for steam, liquid and gas media applications. However, we also see use cases for the following applications:
- For the food & beverage industry
- For high-pressure applications
- To reduce pressure
- For fuel and oil burner control
- For fuel and oil atomization
- For natural gas applications
- For precise pressure control for low-pressure tank blanketing
Contact us for more information on the different applications of our pressure reducing regulators.
Frequently Asked Questions
How do I choose a pressure reducing valve?
How you choose a pressure reducing valve depends on why you need it. There are five things you need to have to choose the right pressure reducing regulator with the correct flow coefficient (Cv):
- Upstream pressure: The supply or inlet pressure going into the valve.
- Outlet/Downstream pressure: The pressure downstream of the regulator.
- Pressure differential: The difference between upstream and downstream pressure.
- Flow range: Ensures the valve is not undersized or oversized.
- Temperature
- Fluid type: Liquid, gas, or steam (including saturated vs. superheated steam).
After sizing your regulator, you’ll also need to determine the line size, material, connection type, shutoff requirements, and whether the regulator is direct-operated or pilot operated.
However, the most important factors in selecting a regulator are the flowing media, desired flow rate, and the inlet and outlet pressures.
We have sizing software available to help you accurately size a regulator.
Does a pressure regulator reduce flow?
No, a pressure reducing regulator does not reduce flow. To control flow, you will need a control valve.
What size pressure reducing valve do I need?
If you’re unsure what size pressure reducing valve you need, don’t hesitate to reach out to our experts for assistance. You can also use our sizing software to help determine the correct size.
Note: the terms “Pressure Reducing Regulators” and “Pressure Reducing Valves” are often used interchangeably. On this website, we prefer using the “Regulators” term to refer to both.