Wholesale price of supply gas pressure reducing valve hjlx manufacture

Wholesale price of supply gas pressure reducing valve hjlx manufacturer
1、 Brief description of hjlx gas pressure reducing valve
Select the type and pressure regulating accuracy of the pressure reducing valve according to the use requirements, and then select its diameter according to the required large output flow
When determining the air supply pressure of the valve, make it greater than the output pressure by 0
1MPa
The pressure reducing valve is generally installed after the water separation air filter and before the oil mist or setting device, and pay attention not to connect its inlet and outlet reversely; When the pressure reducing valve is not in use, the knob shall be loosened to avoid the diaphragm from being often pressed and deformed and affecting its performance
The pressure reducing valve is a necessary accessory of the pneumatic control valve
Its main function is to reduce the pressure of the air source and stabilize it to a value, so that the control valve can obtain stable air source power for regulation and control
Pressure reducing valve plays an important role in domestic water supply, fire water supply and other industrial water supply systems

2、 Hjlx gas pressure reducing valve parameters:
Material: stainless steel Cast steel http://www
shjbn
com/20151015340
htm
Service pressure; 1
6MPa
Applicable medium: Water Liquid General corrosivity of gas; wait!
Nominal diameter: dn15-300mm
Service temperature: 425 ℃ for cast steel and 150 ℃ for stainless steel
When ordering beyond this provision, it shall be explained

 
3、 Working principle of hjlx gas pressure reducing valve
The pressure reducing valve is a kind of valve that reduces the inlet pressure to a certain required outlet pressure through regulation and automatically keeps the outlet pressure stable by relying on the energy of the medium itself
From the perspective of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, that is, by changing the throttling area, the flow rate and kinetic energy of the fluid are changed, resulting in different pressure losses, So as to achieve the purpose of decompression

1
Within the given range of spring pressure level, the outlet pressure can be continuously adjusted between the maximum value and the minimum value without jamming and abnormal vibration
2
For the pressure reducing valve with soft seal, there shall be no leakage within the specified time; For the pressure reducing valve with metal seal, the leakage shall not be greater than 0
5% of the maximum Da flow;
3
When the outlet flow changes, the outlet pressure deviation of direct acting type shall not be greater than 20%, and that of pilot type shall not be greater than 10%;
4
When the inlet pressure changes, the outlet pressure deviation of direct acting type shall not be greater than 10%, and that of pilot type shall not be greater than 5%;
5
Generally, the pressure behind the pressure reducing valve shall be less than 0
5 times of the pressure in front of the valve;
6
The application scope of pressure reducing valve is very wide
It can be used in equipment and pipelines of steam, compressed air, industrial gas, water, oil and many other liquid media
The amount of media flowing through the outlet of pressure reducing valve is generally expressed by mass flow or volume flow;
7
Bellows direct acting pressure reducing valve is suitable for low pressure, medium and small diameter steam medium;
8
Membrane direct acting pressure reducing valve is suitable for medium and low pressure, medium and small diameter air and water media;
9
The pilot piston pressure reducing valve is suitable for steam, air and water media with various pressures, diameters and temperatures,
If it is made of stainless and acid resistant steel, it can be applied to all kinds of corrosive media;
10
For the convenience of operation, adjustment and maintenance, the pressure reducing valve shall generally be installed on the horizontal pipeline