Tecnical Data
Test pressure Mpa
Nominal diameter
≤400
450-600
Seal Mpa
1.54
1.32
Intensity Mpa
2.1
1.8
Maximum Working pressure
Nominal diameter DN
≤200
250-400
Fluid Condition
Saturated steam
0.5
0.3
oil and pulsation water
1.0
Non-shock water<120℃or less
1.4
1.2
Materials of Main Parts
Parts
Material
Name
Grads
Standard No
Body
Cast iron
HT200
GB12226
Wedge disc
Bonnet
Stem
Brass
HPb59-1
GB5232
Yoke bushing
Cast bronze
ZCuSn5Pb5Zn5
GB12225
Sealing face
Overall&Structure Dimensions
Out-form dimension
Connection dimension of flang
(mm)
L
H
Do
D
D1
b
d
n
50
200
308
140
155
120
20
19
4
65
220
354
160
175
22
80
230
402
180
185
150
8
100
250
454
210
24
125
270
514
224
23
290
576
280
240
26
320
694
315
330
12
380
800
400
355
30
25
300
440
940
450
445
32
16
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