Water Pressure Regulator

The water pressure regulator uses the opening degree of the opening and closing parts of the control valve to regulate the flow of the medium, reducing the pressure of the medium, while regulating the opening degree of the opening and closing parts with the help of the post-valve pressure to keep the post-valve pressure within a certain range - the type of pressure reducing valve and the accuracy of pressure regulation are selected according to the requirements of use, and then its diameter is selected according to the maximum output flow required. Buy the lowest priced water pressure regulator at ATO.com and choose from a wide range of adjusting water pressure regulator sizes, 1", 3/4", 1/2" to 2".

How water pressure regulator works?

The water pressure regulator reduces the water pressure by the local resistance of the flow channel in the valve to the water flow. The principle of constant ratio decompression is controlled by the water pressure ratio of the floating piston in the valve body, and the decompression ratio at the inlet and outlet is inversely proportional to the area ratio of the piston at the inlet and outlet.

Water pressure regulator structure and features

1. Water pressure regulator can reduce dynamic and static pressure.
2. Water pressure regulator adopts direct acting diaphragm structure, the internal structure is very simple, no jamming, reliable performance and durable.
3. Dirty and water resistant, no filter, no bypass tube, extremely simple piping, can save a lot of space and piping costs. The piping is extremely simple and saves a lot of space and piping costs.
4. The outlet pressure is precisely adjustable, and in general, it can be considered that the outlet pressure is not affected by the inlet pressure.
   In general, the outlet pressure can be considered to be independent of the influence of the inlet pressure.
5. Excellent hydraulic characteristics, small pressure loss, pressure reduction ratio up to 10:1 or more.
6. Adjusting water pressure regulator can meet a variety of pressure reduction requirements, especially suitable for bypass pressure reducing valve system.

What is a pilot operated pressure reducing valve?

The pilot-operated pressure reducing valve changes the flow rate and kinetic energy of the fluid in the pipeline system by changing the throttling area, and after different degrees of pressure loss, the purpose of reducing the pressure inside the pipeline is achieved. Through careful control and adjustment, the internal pressure of the valve can be reduced. The fluctuation of the valve and the spring force reach a balance, and finally the pressure after the valve in the pipeline is kept constant within a certain error range.

Pilot operated pressure reducing valves use hydraulic operating principles to achieve control. As a component for adjusting and throttling local pressure changes, the pilot-operated pressure reducing valve reduces the inlet pressure to a set outlet pressure range by adjusting the inlet pressure, and then automatically keeps the outlet pressure stable by virtue of the energy of the medium itself.

How to use water pressure regulator for zoning water supply?

1. The performance of the water pressure regulator used for fire-fighting water supply should be safe and reliable, and should meet the requirements of fire-fighting water supply.
2. The water pressure regulator should be selected according to the design flow and pressure of the water supply, and the design flow should be within the effective section of the flow pressure characteristic curve of the pressure reducing valve, and the dynamic pressure at the outlet of the pressure reducing valve should not be less than 65% of the design value when 150% of the design flow is verified.
3. Each water supply partition should have no less than two groups of pressure reducing valves, and each group of pressure reducing valves should be set up as a backup pressure reducing valve.
4. The pressure reducing valve should only be set on the one-way flow of the water supply pipe, and should not be set on the two-way flow of the water transmission main.
5. The pressure reducing valve should be a proportional pressure reducing valve, and when it exceeds 1.20MPa, it should be a pilot operated pressure reducing valve.
6. The pressure reduction valve should not have a pressure ratio before and after the valve greater than 3:1. When a pressure reducing valve cannot meet the requirements, a pressure reducing valve in series can be used, but the pressure reduction in series should not be greater than two levels, and the second level pressure reducing valve should be a pilot operated pressure reducing valve, and the pressure difference before and after the valve should not exceed 0.40MPa.
7. The safety valve should be set after the pressure reducing valve, and the opening pressure of the safety valve should be able to meet the system safety and should not affect the water supply safety of the system.
   

How to adjust the outlet pressure of the pressure reducing valve?

Turn off the water end of the pressure reducing valve after the valve, then open the black cover on the adjusting spring, there is a word starter adjustment, from top to bottom, clockwise rotation of the outlet pressure increases, counterclockwise rotation of the outlet pressure decreases, while adjusting to observe the pressure gauge reading on the valve body or after the valve, stop adjusting after reaching the required pressure and reset the black cover.

How to adjust the water pressure regulating valve?

Self-operated water pressure regulating valve itself functions as a pressure regulator, although in some conditions the flow rate can be changed by changing the pressure parameters, but this is the result of the impact of the equipment process, not the function of the self-operated water pressure regulating valve. Self-operated water pressure regulating valve itself does not have the function of flow regulation.

Self-operated water pressure regulating valve is divided into two types of adjustment before and after the valve, respectively, can only adjust the pressure before or after the valve, that is, before the valve type regardless of how the pressure fluctuations after the valve, only adjust the pressure before the valve to maintain stability; the same after the valve type only after the valve regardless of the valve before.

After the use of the valve type self-operated water pressure regulating valve to adjust the pressure after the valve, there is a continuous rise in the valve reed reasons:

• Some models of self-supporting valves have a minimum flow rate, when the amount of after-valve is less than a certain value, the adjustment fails.
• Adjustment mechanism, including some models of discrete command valve "adjustment dead", can not play a regulatory role. (This can be seen when the valve stem does not change with the pressure fluctuations or changes are not in place)
• The regulating valve itself leakage is too large. (This time the valve will usually be in the fully closed position)