CLASS 150~300 BUTTERFLY SWING CHECK VALVE
Product introduction
The wafer flange clamped butterfly check valve 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 valve 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
valve 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 valve 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 valve 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 valve should be
perpendicular to the horizontal level when the valve is mounted
on horizontal pipeling.For vertical installation the direction
of flow should be downward.
CLASS 150~300 BUTTERFLY SWING CHECK VALVE
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
|
|
