Chuanli Holdings Co., Ltd
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    No. 422, Road 22, Binhai Park, Wenzhou Economic and Technological Development Zone, Zhejiang Province
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High sensitivity steam pressure reducing valve
High sensitivity steam pressure reducing valve
Product details

High sensitivity steam pressure reducing valve

高灵敏度蒸汽减压阀
YG13H/Y、 YG43H/Y High Sensitivity Steam Pressure Reducing ValveIt belongs to the pilot piston pressure reducing valve. It consists of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, spring and other parts. The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, regulating spring and other parts. By adjusting the spring pressure to set the outlet pressure, using a diaphragm to sense changes in outlet pressure, and driving the piston to adjust the size of the overcurrent area at the throttle position of the main valve through the opening and closing of the pilot valve, the pressure reduction and stabilization function is achieved. The high-sensitivity steam pressure reducing valve has made the following improvements on the basis of the ordinary pressure reducing valve: increasing the piston area, changing the throttling structure, changing the sealing form, improving the guide valve structure and adjusting spring form, thereby improving the performance of the product from the following aspects.
1. Improved the sensing efficiency of outlet pressure changes, increased sensitivity, and greatly reduced pressure deviation caused by upstream pressure changes, flow rate changes, and other factors.
2. Improved streamline distribution and reduced noise.
3. Improved the sealing surface structure and extended the lifespan of the sealing surface.
High sensitivity steam pressure reducing valves are mainly used in steam pipelines, suitable for steam pipelines with large changes in inlet pressure and flow rate.
Main technical parameters
Nominal pressure (Mpa)
1.0
1.6
Shell test pressure (Mpa)*
1.5
2.4
Sealing test pressure (Mpa)
1.0
1.6
Maximum import pressure (Mpa)
1.0
1.6
Export pressure range (Mpa)
0.04-0.6
0.04-1.0
Pressure characteristic deviation (Mpa) △ Pp2P
GB12246-1989
Flow characteristic deviation (Mpa) P2G
GB12246-1989
Minimum pressure difference (Mpa)
0.05
0.07
Leakage rate
GB12245-1989
*Shell test does not include diaphragm and top cover
Material for main parts


Part name
Part Material
Valve body, valve cover, bottom cover
WCB
Valve seat disc
2Cr13
Cylinder liner piston
Aluminum iron bronze
diaphragm
PH15-7Mo
piston ring
PPL
Guide valve seat and guide valve disc
2Cr13
Main valve spring
50CrVA
Adjusting the main spring
50CrVA
Adjusting spring
60Si2Mn
Flow coefficient Cv


DN
15
20
25
32
40
50
65
80
Cv
1
2.5
4
6.5
9
16
25
36
Main overall dimensions
YG13H/YInternal thread high sensitivity steam pressure reducing valve

timg (3).jpg

Nominal Diameter
G
L
H
H1
15
1/2"
140
160
65
20
3-4"
140
160
65
25
1"
160
168
68
32
1-1/4"
180
185
75
40
1-1/2"
200
185
78
50
2"
230
193
88
YG43H/YFlange type high-sensitivity steam pressure reducing valve

timg.jpg

Nominal Diameter
DN
External dimensions
Connection size
L
H
H1
PN 1.0MPa
PN 1.6MPa
D
K
n-ф
d
C
D
K
n-ф
d
C
15
140
160
65
95
65
414
45
12
95
65
414
45
14
20
140
160
65
105
75
414
55
14
105
75
414
55
14
25
150
168
68
115
85
414
65
14
115
85
414
65
14
32
180
185
75
135
100
418
78
16
135
100
418
78
16
40
180
185
78
145
110
418
85
16
145
110
418
85
16
50
200
193
88
160
125
418
100
16
160
125
418
100
16
65
230
208
98
180
145
418
120
18
180
145
418
120
18
80
260
228
117
195
160
418
135
18
195
160
818
135
20


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