Self-reliance type pressure regulating pneumatic valve single and double loop pressure relief system

Self-reliance type pressure regulating pneumatic valve by pneumatic valve, pneumatic valve seat, pneumatic valve core component and other components, is a kind of not directly depend on the modulated medium and energy, and its own pressure changes automatically adjust the pressure of the energy-saving products, can be used in the corrosive ( Ceiling temperature 350 degrees c) Liquids, gases and steam, etc.


ZZYP( M, N) Self-reliance type pneumatic valve pressure regulation is not a solitary zero is installed on the pipeline, but in combination with other pneumatic valve or a pipe joint is installed in the system, usually has a single way decompression and dual decompression. Single decompression

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one, used in a variety of gas and low viscosity liquid pressure

note: (1) according to the need, also can be installed after the pneumatic valve group check pneumatic valve, safety valve, Whether to allow)
(2) the by-pass pipe can be according to the space is decorated with self-reliance type pneumatic valve the same horizontal plane or vertical plane

2, used in a variety of high viscosity of the liquid medium pressure

for steam decompression self-reliance type pneumatic valve

- dual decompression



dual relief only in working condition is more important, the system does not allow the failed system, the normal work, all the way all the way to shut down backup, as long as the flow enough, do not need to be at the same time open two way decompression, lest appear pneumatic valve open reverberate through small and noise, affect the service life of the pneumatic valve.

one, for a variety of gas and low viscosity liquid pressure

2, used in a variety of high viscosity liquid medium decompression
with gas decompression, only self-reliance type pneumatic valve inversion.

3, for steam decompression of self-reliance type two-way pneumatic valve group

- design, installation, reduced pressure pneumatic valve group note

when installation, attention should be paid to the following:
( 1) When used in gas or low viscosity liquid medium, usually type ZZY self-reliance type pressure regulating pneumatic valve as vertical installed in a horizontal pipe, when position space does not allow to flip or inclined outfit.
( 2) When used in steam or high viscosity liquid medium, usually type ZZY self-reliance type pressure regulating pneumatic valve as a handstand installed in a horizontal pipe, condenser shall be higher than that of pressure regulating pneumatic valve actuator pneumatic valve before and after to take over the below. Before using the condenser shall be filled with cold water, irrigation time after about 3 months.
( 3) Take pressure point should be take in regulating pneumatic valve position, pneumatic valve before the regulation should be greater than 2 times the pipe diameter, pneumatic valve after pressure regulating should be greater than 6 times the pipe diameter.
( 4) To facilitate the maintenance and operation, the pressure regulating pneumatic valve should leave proper space all around.
( 5) When the medium is clean gas or liquid, pneumatic valve before the filter installation.
( 6) Regulating pneumatic valve size is too large, DN 100 or higher) And shall have the fixed bracket.
( 7) When confirmed that medium is very clean, the filter can not install.
( 8) Location is not allowed, alongside ventilation action valve can be omitted, Is not recommended) 。
( 9) Pneumatic valve group of users can be selected according to need check after pneumatic valve, safety valve, etc.
( 10) Self-reliance type pneumatic valve according to calculate the size can be smaller than the pipe diameter, and by the pneumatic valve, cut-off valve, pneumatic valve, alongside ventilation filter will not be smaller than the pipe diameter.