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Swing Check Valve

    Place of Origin: China

Product Description

Swing Check Valve
PN16 ~ PN250 swing Check Valve is suitable for any pipeline in petroleum,chemical, pharmaceutical, chemical fertilizer, electric power industry, etc,whose
Working pressure range from1.6 to 25 MPa, working temperature range from - 29 to + 550 ℃,and medium are varied like water, oil, steam, acid medium, etc.

Performance Data:Standard


Design
Length
Flange
size
Pressure
temperature
Test
inspect
GB/T12236
GB12221

JB79
GB9131
GB/T13927

Design Pressure Unit: MPa


Pressure
1.6
2.5
4
6.4
10
16
Strength
2.4
3.8
6
9.6
15
24
Water seal
1.6
2.5
4
6.4
10
16
Air seal
0.4-0.7

Components/Material/Function


Body Cover
Guide sleeve
Pin roll
Filler piece
Sealing
facing
Applicable
temperature
Applicable
medium
QT450
WCB
1Cr13
Reinforced flexible
graphite
1Cr13/Soft graphite,
stainless steel/
Acid asbestos PTFE,
grooved metal gasket
1CrSTL
materialPTFE
nylon
≦350
Water.
Steam.
Oil
WCB
≦425
WC8
WC6
≦540
WC9
WC9
≦570
2GCr5Mo
2GCr5Mo
≦550
ZG1Cr18Ni9Ti
ZG1Cr18Ni9Ti
1Cr18Ni9Ti
≦200
Nitric acid

acetic acid
ZG1C18Ni12Mo2Ti
ZG1C18Ni12Mo2Ti
1C18Ni12Mo2Ti
≦200
acetic acid

Data sheet:Unit:mm

1.6,Pa
DN
L
D
D1
D2
b
n-Φd
H
Convex flange
H44H
H44W
H44Y


16Q
16C
16P
16R
16
50
230
160
125
100
16
4-Φ18
135
65
290
180
145
120
18
4-Φ18
142
80
310
195
160
135
20
8-Φ18
165
100
350
215
180
155
20
8-Φ18
180
120
400
245
210
185
22
8-Φ18
210
150
480
280
240
210
24
8-Φ23
233
200
550
335
295
265
26
12-Φ23
304
250
650
405
350
320
30
12-Φ25
348
300
750
400
400
375
30
12-Φ25
390
350
850
520
460
435
34
16-Φ25
430
400
950
580
515
485
36
16-Φ30
468
500
1150
705
620
608
44
20-Φ34
525
600
1350
840
725
718
48
20-Φ41
/
700
1450
910
840
788
50
24-Φ41
/
800
1650
1020
950
898
52
24-Φ41
/
2.5MPa
50
230
160
125
100
16
4-Φ18
160
25
25Q
25P
25R
25I
65
290
180
145
120
18
4-Φ18
175
80
310
195
160
135
20
8-Φ18
185
100
350
215
180
155
20
8-Φ18
220
120
400
245
210
185
22
8-Φ18
248
150
480
280
240
210
24
8-Φ23
276
200
550
335
295
265
26
12-Φ23
350
250
650
405
350
320
30
12-Φ25
410
300
750
400
400
375
30
12-Φ25
430
350
850
520
460
435
34
16-Φ25
518
400
950
580
515
485
36
16-Φ30
560
500
1150
705
620
608
44
20-Φ34
618
600
1350
840
725
718
48
20-Φ41
/
700
1450
910
840
788
50
24-Φ41
/
800
1650
1020
950
898
52
24-Φ41
/

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