Northman Hydraulic Co.,Ltd Agent (ZHANGFA Hydraulic) Northman Hydraulic Co.,Ltd Agent (ZHANGFA Hydraulic)

Products >> Pressure reducing and check valve >> 

  • Northman Pressure Reducing And Check Valve PRCV-G03-1-20-N
Northman Pressure Reducing And Check Valve PRCV-G03-1-20-N

Northman Pressure Reducing And Check Valve PRCV-G03-1-20-N

Northman Pressure Reducing And Check Valve PRCV-G03-1-20-N

How to order:

Northman Pressure Reducing And Check Valve PRCV-G03-1-20-N
Northman Pressure Reducing And Check Valve PRCV-G06-1-20-N
Northman Pressure Reducing And Check Valve PRCV-G10-1-20-N
Northman Pressure Reducing And Check Valve PRCV-G03-2-20-N
Northman Pressure Reducing And Check Valve PRCV-G06-2-20-N
Northman Pressure Reducing And Check Valve PRCV-G10-2-20-N
Northman Pressure Reducing And Check Valve PRCV-G03-3-20-N
Northman Pressure Reducing And Check Valve PRCV-G06-3-20-N
Northman Pressure Reducing And Check Valve PRCV-G10-3-20-N

Northman Pressure Reducing And Check Valve PRCV-T03-1-20-N
Northman Pressure Reducing And Check Valve PRCV-T06-1-20-N
Northman Pressure Reducing And Check Valve PRCV-T10-1-20-N
Northman Pressure Reducing And Check Valve PRCV-T03-2-20-N
Northman Pressure Reducing And Check Valve PRCV-T06-2-20-N
Northman Pressure Reducing And Check Valve PRCV-T10-2-20-N
Northman Pressure Reducing And Check Valve PRCV-T03-3-20-N
Northman Pressure Reducing And Check Valve PRCV-T06-3-20-N
Northman Pressure Reducing And Check Valve PRCV-T10-3-20-N

Northman Pressure Reducing And Check Valve PRCV-G03-1-20-N
Northman Pressure Reducing And Check Valve PRCV-G06-1-20-N
Northman Pressure Reducing And Check Valve PRCV-G10-1-20-N
Northman Pressure Reducing And Check Valve PRCV-G03-2-20-N
Northman Pressure Reducing And Check Valve PRCV-G06-2-20-N
Northman Pressure Reducing And Check Valve PRCV-G10-2-20-N
Northman Pressure Reducing And Check Valve PRCV-G03-3-20-N
Northman Pressure Reducing And Check Valve PRCV-G06-3-20-N
Northman Pressure Reducing And Check Valve PRCV-G10-3-20-N

Northman Pressure Reducing And Check Valve PRCV-T03-1-20
Northman Pressure Reducing And Check Valve PRCV-T06-1-20
Northman Pressure Reducing And Check Valve PRCV-T10-1-20
Northman Pressure Reducing And Check Valve PRCV-T03-2-20
Northman Pressure Reducing And Check Valve PRCV-T06-2-20
Northman Pressure Reducing And Check Valve PRCV-T10-2-20
Northman Pressure Reducing And Check Valve PRCV-T03-3-20
Northman Pressure Reducing And Check Valve PRCV-T06-3-20
Northman Pressure Reducing And Check Valve PRCV-T10-3-20

Pressure reducing valve is through regulation, will reduce the inlet pressure to a need of the outlet pressure, and rely on the energy of the medium itself, so that the outlet pressure automatically maintain a stable valve. From the point of view of fluid mechanics, the pressure-reducing valve is a throttling element whose local resistance can be changed, that is, by changing the throttling area, the flow velocity and fluid kinetic energy change, causing different pressure losses, so as to achieve the purpose of reducing pressure. Then, by means of control and adjustment system, the pressure fluctuation behind the valve is balanced with the spring force, so that the pressure behind the valve remains constant within a certain error range.
 
performance
 
(1) pressure regulating range: it refers to the adjustable range of pressure P2 output pressure of the pressure-reducing valve, within which the specified precision is required. The pressure regulating range is mainly related to the stiffness of the spring.
 
(2) pressure characteristic: it refers to the characteristic of output pressure fluctuation caused by input pressure fluctuation when flow g is a constant value. The smaller the output pressure fluctuation, the better the characteristics of the reducing valve. The output pressure must be lower than the input pressure to remain essentially unchanged from the input pressure.
 
(3) flow characteristic: it refers to the stability of input pressure -- timing, and output pressure changes with the change of output flow g. When the flow g changes, the smaller the change of output pressure, the better. Generally, the lower the output pressure, the smaller the fluctuation with the output flow rate.
 
It reduces the higher liquid pressure in the front line of the valve to the required level in the back line of the valve. The transmission medium here is mainly water. The pressure-reducing valve is widely used in high-rise buildings, areas with high water pressure in urban water supply network, mines and other occasions, so as to ensure the proper service water pressure and flow at each water point in the water supply system. Considering that the rate of water leakage and waste is almost proportional to the water pressure of the water supply system, the pressure-reducing valve can improve the operating condition of the system and save water potentially, according to statistics, its saving effect is about 30%.
 
1. Close the gate valve before the pressure-reducing valve and open the gate valve after the pressure-reducing valve to create the downstream low-pressure environment;
 
2. Adjust the screw
 
Pressure reducing valve
 
Pressure reducing valve
 
Rotate counterclockwise to the top position (relative to the lowest outlet pressure), then close the pressure reducing valve rear gate valve;
 
3. Slowly open the gate valve before reducing pressure valve to full open;
 
4. Slowly rotate the adjusting screw clockwise, and adjust the outlet pressure to the required pressure (subject to the gauge pressure behind the valve); After the adjustment, the lock will be tight
 
Lock the nut, open the pressure reducing valve after the gate valve;
 
5. If the outlet pressure is higher than the set pressure during adjustment, it must be readjusted from the first step, that is, it can only be adjusted from low pressure to high pressure.

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Tel: +0086-13509210189

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Add: NO13 Dalang ,Longhua Dist, Shenzhen, Guangdong Province, China