|
|
|
|
|
Classification：Relief pressure valve
Trade names：
|
| |
| YD43H guide type relief pressure valve of high sensitivity of diaphragm oversize |
| Type of the products: YD43H |
|
|
Structure characteristic and use :
Serial relief pressure valve this whether our company consult foreign advanced product develop the new-type guide type relief pressure valve of diaphragm oversize succeeded in developing , this product has done very great improvement on the basis of ordinary relief pressure valve . The diaphragm has adopted the new materials, and process work areas greatly, so valve the upper reaches pressure or downstream load slight change can accurate feedback get main valve diaphragm in time, to regulate the opening degree of the main valve , guarantee the stability of the downstream pressure.
Another outstanding characteristic of this product is: Same valve body can install and exchange a lot of not to lead the valve in the steady voltage, realize temperature control , control of the upper reaches pressure , long-range switch are controlled etc.. |
Main technical parameter and performance index :
|
Nominal pressure (Mpa)
|
2.5
|
|
Test pressure of the shell (Mpa ) is *
|
3.75
|
|
Sealed test pressure (Mpa)
|
2.5
|
|
Supreme inlet pressure (Mpa)
|
2.5
|
|
Export to the pressure range (Mpa)
|
0.02-1.6
|
|
Characteristic deviation of the pressure (Mpa) P2P
|
GB12244-1989
|
|
P2G of characteristic deviation of the flow (Mpa )
|
GB12244-1989
|
|
Seepage amount
|
GB12245-1989
|
*: The shell is tested not including the diaphragm , valve are covered. |
Major part material :
|
Part name
|
Part material
|
|
The valve has body The valve covering
|
WCB
|
|
Valve seat
|
2Cr13
|
|
Valve one
|
2Cr13
|
|
Valve stem
|
2Cr13
|
|
Diaphragm
|
1Cr18Ni9Ti
|
|
Regulate the spring
|
60Si2Mn
|
|
Flow coefficient (Cv ):
|
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
|
Cv
|
2.9
|
5.3
|
8.6
|
11.6
|
16.5
|
29.1
|
|
Connect size:
|
DN
|
L
|
H1
|
H
|
D
|
|
15
|
147
|
235
|
145
|
207
|
|
20
|
154
|
235
|
145
|
207
|
|
25
|
160
|
235
|
145
|
207
|
|
32
|
180
|
250
|
160
|
220
|
|
40
|
16
|
250
|
160
|
220
|
|
50
|
230
|
270
|
180
|
220
|
|
|
|
|
|
|
