Design and Manufacturing Standard: GB/T 12235-2007
Sealing test pressure: 1.76 MPa
Applicable medium: Water and weakly corrosive fluids
Connection type: Flange connection
Nominal pressure: 1.6 MPa
Shell test pressure: 2.4 MPa
Media temperature: 0°C to 80°C
Connection Standard: GB/T 9119-20
Structure size
DN
PN
size (mm)
mm
L
D
D1
D2
n-d
b
f
50
16
100
165
125
100
4-18
20
3
65
16
120
185
145
120
4-18
20
3
80
16
150
200
160
135
8-18
20
3
100
16
160
220
180
155
8-18
22
3
125
16
180
250
210
185
8-18
22
3
150
16
200
285
240
210
8-23
24
3
200
16
220
340
295
265
12-23
24
3
250
16
250
405
355
320
12-26
26
4
300
16
300
460
410
375
12-26
28
4
Material List
order number
part
standard layout
1
valve body
Stainless steel 304
2
Valve flap
Stainless steel 304 + NBR
3
Spring
Stainless steel 304
4
valve stem
Stainless steel 304
5
support
Stainless steel 304
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