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Stock abbreviation: Quanpai Technology
Stock Code: 872820

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Contact :   0591-83629908

                  0591-83362502

                  0591-83357911

Address: No. 7, Block 3, Datong Home International Electric Mall, No. 49 Fuxing Avenue, Jinan District, Fuzhou City

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Branch pipe pressure reducing valve QPYZ11-16T

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Branch pipe pressure reducing valve QPYZ11-16T

Summary information
1, branch pipe pressure reducing valve use

 The branch pipe pressure reducing valve produced by our factory is mainly used in various building water supply systems, fire protection systems, central a
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Description
1, branch pipe pressure reducing valve use
 
 The branch pipe pressure reducing valve produced by our factory is mainly used in various building water supply systems, fire protection systems, central air conditioning systems, heating systems, etc. It is used for branch pipe decompression, which can make the water supply pressure distribution more balanced, avoid partial water supply overpressure, and optimize the water supply partition of high-rise buildings. It can replace the zone-controlled variable frequency water pump, and can replace the zoned water pump in the fire water supply system for the household water supply system, which can protect all the faucets and other water appliances.
 
2, branch pipe pressure relief valve features
 
With a direct acting diaphragm structure, the internal structure is very simple, no jamming, reliable performance and durability.
 
It is resistant to dirt and scale, does not require a filter, does not require a bypass pipe, and the piping is extremely simple, saving a lot of space and piping costs.
 
The outlet pressure is precisely adjustable. Under normal circumstances, the outlet pressure can be considered to be unaffected by the inlet pressure (the change in outlet pressure is 8% of ΔP1).
 
Excellent hydraulic characteristics, low pressure loss, and a pressure reduction ratio of 10:1 or more.
 
It can meet a variety of decompression requirements, especially for branch pipe decompression systems.
 
3, the working principle of the branch pipe pressure reducing valve
 
The outlet pressure acts on the bottom surface of the diaphragm and the underside of the valve flap. When it exceeds the spring setting, the spring is compressed to close the flap. As long as there is no downstream flow, the outlet pressure will remain at the set value (the amount of change is only 8% of the inlet pressure change); when the downstream water is used, the outlet pressure drops, the spring pushes open the diaphragm, and opens the pressure reducing valve. After the water flow is continuously circulated for a while, the opening of the pressure reducing valve produces a self-damping effect, which makes the opening and closing action tend to be stable.
 
4, the main technical parameters of the branch pipe pressure reducing valve
 
Frost damage, should pay attention to heat preservation in cold areas.
 
The direction of the water flow is wrong, the pressure reducing valve becomes a check valve, and the outlet pressure is zero.
 
The spring is too tight to close and the pressure relief valve will pass through P2=P1.
 
The bypass pipe leaks, so that P2 deviates from the set value. In view of the superior reliability and durability of the pressure reducing valve, it is recommended not to install the brightness pipe.

 

Types of

model

Nominal pressure
PN (MPa)
Nominal diameter
DN (MPa)

Connection Type

Body material

Export pressure (MPa)

 
Working °C

Branch pipe pressure reducing valve

YZ11X-16T
YZ11X-25T

1.62.5

15~50

internal thread

Qinggang

0.05~0.6Adjustable

80

YZ11X-16P
YZ11X-25P

stainless steel

 

5, the main size of the branch pipe pressure reducing valve

 

Nominal diameter DN (MPa)

Size (MM)

Weight (Kg)

MM

in

A

B

C

φG

15

1/2

31

60

76.5

59

1.2

20

3/4

31

75

76.5

73

1.2

25

1

36

88

85

81

1.4

32

11/4

42

93

98

81

1.5

40

11/2

45

98

102

85

2

50

2

54

130

117

98

2.65

 
6. Possible causes of failure of the branch pipe pressure reducing valve
 
Frost damage, should pay attention to heat preservation in cold areas.
 
The direction of the water flow is wrong, the pressure reducing valve becomes a check valve, and the outlet pressure is zero.
 
The spring is too tight to close and the pressure relief valve will pass through P2=P1.
 
The bypass pipe leaks, so that P2 deviates from the set value. In view of the superior reliability and durability of the pressure reducing valve, it is recommended not to install the brightness pipe.
Corresponding parameter set not found, please add it in property template of background
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暂未实现,敬请期待
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