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Product Name:ANSI Class 125 Cast Iron Swing Check Valve
ANSI Class 125 Cast Iron Swing Check Valve

Specification
Design Standard: MSS SP-71
Face to Face: ANSI B16.10
Flange Dimension : ANSI B16.1
Flange Drilling :  ANSI B16.1, ANSI B16.5
Test Standard : MSS SP-71
Lever & counterweight are available on request
Size:  2"-24"
 
Application
Working Temp: 100oC
Working Pressure: PN10 or PN16
Suitable Media: Water,Steam,Oil
Not recommended for Steam Service.
Causion: FREEZING WEATHER PRECAUTION - Subsequent to testing a piping system, gate valves should be left in an open position to allow complete drainage.
 
Materials
No
Part Name
Materials
1
Body
ASTM A126A(B)
GG20 GG25
2
Seat Ring
ASTM B36/B62,SS410
Brass,Bronze
3
Wedge
ASTM A126A(B)
GG20 GG25
4
Hinge Pin
A216 WCB
GS-C25
5
Hinge
ASTM A126A(B)
GG20 GG25
6
Nut
A216 WCB
GS-C25
7
Bonnet
ASTM A126A(B)
GG20 GG25
8
Split Pin
A216 WCB
GS-C25
9
Bonnet Gasket
Graphite
Graphite
10
Bolt
A216 WCB
GS-C25
11
Washer
A216 WCB
GS-C25
12
Nut
A216 WCB
GS-C25
 
Dimensions(ANSI 16.1 Flange drilling)
Size
L
D
D1
b
n-d
H
W.T(kg)
1-1/2
165.1
127
98.6
14.2
4-16
110
10.5
2
203.2
152
120.7
15.8
4-19
130
12.5
2 1/2
215.9
178
139.7
17.5
4-19
140
17.3
3
241.3
191
152.4
19
4-19
150
24.5
4
292.1
229
190.5
23.9
8-19
160
37.5
5
330.2
254
215.9
23.9
8-22
190
41
6
355.6
279
241.3
25.4
8-22
210
46.2
8
495.3
343
298.5
28.5
8-22
250
120
10
622.3
406
362
30.2
12-25
310
198
12
698.5
483
431.8
31.8
12-25
340
282
14
787.4
533
476.3
35
12-29
450
350
16
914.4
579
539.8
36.6
16-29
520
430
18
914
635
577.9
39.6
16-32
550
638
20
1016
699
635
42.9
20-32
590
705
24
1219
813
749.3
47.8
20-35
680
900
We suggest cast steel material for over 12" size.
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