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Class 150~300 Butterfly Swing Check valves
Position: valves seriess > Cast Steel valves


CLASS 150~300 BUTTERFLY SWING CHECK valves
 

Product introduction

 

~The wafer flange clamped butterfly check valves is a energy-save product.It is manufactured based the foreign advanced technology and in accordance with relative international standards.This product is featured by excellent retaining per-formance,high safety and reliability and low flow resistance.It is suitable for systems in the industries of petrochemical food processing,medicine,textile,paper-making.Water,supply,drainage,metallurgy,energy,and light industry,etc,used as a check valves in one way.

  Standerds compliance
 

Design and Manufacture: ANSI B16.34,API 6D
Face to face: API 6D
Flanged connection: 2~~24~to ANSI B16.5
22~,26~~36~to MSS-SP-44 to API 605 on request
Test and inspection: API 6D
Shell test 150Lb 450 PSI
300Lb 1125 PSI
Seat test 150Lb 315 PSI
300Lb 815 PSI(Hydrostatic)80PSI(Air)


Featutes
1.

Small in size,light in weight,compact in structure,easy in maintenance.

2 Two torsion springs are used excerting on each of the pair valves plates.Which close the plates quickly and automatically.
3 The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.
4 This valves is short in length,so that it is rigid and easy to mount.
5 It is easy to install on pipeline which is laid horizontally or vertically.
6 This valves is tightly sealed without leakage under the pressure water test.
7 Safe and reliable in operation,high interference-resistance.
8 The connection dimensions of flanges accord with the standards of GB4216-84 GB4216.84
9 The face to face dimensions are in accordance with GB12221-89.ISO5752-82.The stem of the valves should be perpendicular to the horizontal level when the valves is mounted on horizontal pipeling.For vertical installation the direction of flow should be downward.

CLASS 150~300 BUTTERFLY SWING CHECK valves
  Materials for main parts
Patr
WCB
A352 LCB
A217 WC6
A217 WC9
A217 C5
A217 C12
A351 CF8
A351 CF8M
Body
A216 WCB
A352 LCB
A217 WC6
A217 WC9
A217 C5
A217 C12
A351 CF8
A351 CF8M
Disc
A351 CF8
A351 CF8
A182 F11
A182 F22
A217 C5
A217 C12
A182 F304
A182 F316
Sten
A182 F304
A182 F304
A182 F304
A182 F304
A182 F304
A182 F304
A182 F304
A182 F316
Spring
Stainless steel
Rubber Gasket
EPDM-46~+121 Neoprene-50~+150 NBR-35~+113 Fluororabber-23~+150

Size
D
D1
D2
L
R
t
Weight(Kg)
mm
inch
50
2~
107
65
43.3
43
28.8
19
1.5
65
2.5~
127
80
60.2
46
36.1
20
2.4
80
3~
142
94
66.4
64
43.4
28
3.6
100
4~
162
117
90.8
64
52.8
27
5.7
125
5~
192
145
116.9
70
65.7
30
7.3
150
6~
213
170
144.6
76
78.6
31
9.0
200
8~
273
224
198.2
89
104.4
33
17
250
10~
323
265
233.7
114
127
50
26
300
12~
378
310
283.9
114
148.3
43
42
350
14~
438
360
332.9
127
172.4
46
55
400
16~
439
410
381.0
140
197.4
52
75
450
18~
555
450
419.9
152
217.8
58
101~ 107
500
20~
594
505
467.8
152
241
58
111
600
24~
690
624
572.6
178
295.4
73
172
700
28~
800
720
680
29
354
98
219


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