| Yz11X type acts on the membrane type and props up and manages the relief pressure valve directly |
| Type of the products: Yz11X |
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Structure characteristic and use :
This serial relief pressure valves are acting on type membrane spring relief pressure valves directly, designed and made on the basis of drawing advantage of the foreign like product. By the diaphragm, stone step shape valve one mainly, regulate such parts as the spring ,etc. to make up. Utilize diaphragm sensing downstream pressure change urge valve petal , change and control valve not to turn on degree is it reduce pressure the steady voltage function to realize. Set and regulated the pressure of the spring and established and exported pressure value.
This product has strengthened the area of the diaphragm properly, has improved the sensitivity. The steady voltage is steady , sensitive to reduce pressure. Suitable for entering the family to prop up and is in charge of using of the skyscraper apartment and branch line pipeline and apartment , house of the residential area . |
Main technical parameter and performance index :
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Nominal pressure (Mpa)
|
1.0
|
1.6
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|
Test pressure of the shell (Mpa ) is *
|
1.5
|
2.4
|
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Sealed test pressure (Mpa)
|
1.0
|
1.6
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Supreme inlet pressure (Mpa)
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1.0
|
1.6
|
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Export to the pressure range (Mpa)
|
0.05-0.55
|
0.05-0.8
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Characteristic deviation of the pressure (Mpa) P2P
|
GB12244-1989
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Characteristic deviation of the flow (Mpa) P2G
|
GB12244-1989
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Seepage amount
|
0
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Working temperature
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0 degrees Centigrade- 80 degrees Centigrade
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*: The shell is tested not including the diaphragm , valve are covered. |
Major part material :
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Part name
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Part material
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The valve has body
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Copper alloy
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The valve covering
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Copper alloy
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Valve one
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Copper alloy
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O type enclosing
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Man nitrile rubber
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Seal and enclose
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Man nitrile rubber
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Diaphragm
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Insert the fabric cube nitrile rubber
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Regulate the spring
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60Si2Mn
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Regulate the bolt
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2Cr13
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Flow coefficient (Cv ):
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DN
|
15(1/2")
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20(3/4")
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25(1")
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32(1-1/4")
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40(1-1/2")
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50(2")
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|
Cv
|
1
|
2
|
3
|
5
|
8
|
14
|
|
Connect size:
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DN
|
G
|
L
|
H
|
H
|
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P2 *≤ 0.55MPa
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P2 *≤ 0.8MPa
|
|
15(1/2")
|
G1/2"
|
65
|
75
|
90
|
35
|
|
20(3/4")
|
G3-4"
|
75
|
85
|
100
|
35
|
|
25(1")
|
G1"
|
90
|
3
|
115
|
46
|
|
32(1-1/4")
|
G1-1/4"
|
105
|
130
|
150
|
55
|
|
40(1-1/2")
|
G1-1/2"
|
120
|
155
|
175
|
65
|
|
50(2")
|
G2"
|
140
|
175
|
195
|
75
|
*: P2 shows the pressure of exporting |
