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Metal-sealing Flange Butterfly Valve

    Place of Origin: China

Product Description

Metal-sealing Flange Butterfly Valve
The main components of the product: valve, valve plate, seals, transmission mechanism.
Hard and soft multilayer sealing process, when the butterfly valve work, labor-saving to ensure that the overall corrosion resistance, high temperature and wear resistance.

Features and Benefit:
1. Unique structure, lightweight, flexible operation, labor-saving, convenient.
2. Reliable seal, gas seal with no leakage.
3. A wide range of application. Such as: water, steam, oil, air, gas and so on.
4. Pressure: below 6.4 M pa

Application: foodstuff, medicine, petrochemicals, power plants, steel mills , industrial water treatment and high-rise buildings. Water supply and drainage pipeline, throttling and shutting off the flow.
Nominal pressure: PN1.0-4.0MPa.ANSI CLASS 150-300LB.JIS10-20K
Nominal diameter: DN40-2000
Connection: Flange butterfly valve, wafer butterfly valve, butt welding butterfly valve, lug butterfly valve.
Temperature: -196℃-700℃
Power: Manual, worm gear drive, gas drive, electric drive, hydraulic drive, .
Material of valve: Gray Cast Iron, Ductile Cast Iron, Carbon Steel, Stainless Steel

Standards:
Design standard is according to DIN, ANSI/BS/JIS/EN are also available upon request.

Data Sheet: Unit:mm



Style Number
Pipe Size(mm)
L
PN1.0MPa
PN1.6MPa
PN2.5MPa
H
H1
D
D1
D2
n-Φd
D
D1
D2
N-Φd
D
D1
D2
N-Φd
D43H
D343H
D643H
D943H

10C
16C
25

10P
16P
25P

10R
16R
25R
50
108
160
125
100
4-Φ18
165
125
99
4-Φ18
160
125
100
4-Φ18
350
265
65
112
180
145
120
4-Φ18
185
145
118
4-Φ18
180
145
120
8-Φ18
365
275
80
114
195
160
135
4-Φ18
200
160
132
8-Φ18
195
160
135
8-Φ18
380
280
100
127
215
180
155
8-Φ18
220
180
156
8-Φ18
230
190
160
8-Φ23
425
300
125
140
245
210
185
8-Φ18
250
210
184
8-Φ18
270
220
188
8-Φ25
450
315
150
140
280
240
210
8-Φ23
285
240
211
8-Φ23
300
250
218
8-Φ25
470
325
200
152
335
295
265
8-Φ23
360
295
266
12-Φ23
360
310
278
12-Φ25
595
395
250
165
390
350
320
12-Φ23
405
355
319
12-Φ25
425
370
332
12-Φ30
620
420
300
178
440
400
368
12-Φ23
460
410
370
12-Φ25
485
430
390
16-Φ30
750
500
350
190
500
460
428
16-Φ23
520
470
429
16-Φ25
550
490
448
16-Φ34
800
530
400
216
565
515
482
16-Φ25
580
525
480
16-Φ30
610
550
505
16-Φ34
870
570
450
222
615
565
532
20-Φ25
640
585
548
20-Φ30
660
600
555
20-Φ34
920
600
500
229
670
620
585
20-Φ25
715
650
609
20-Φ34
730
660
610
20-Φ41
1040
680
600
267
780
725
685
20-Φ30
840
770
720
20-Φ41
840
770
718
24-Φ41
1170
750
700
292
895
840
800
24-Φ30
910
840
794
24-Φ41
955
875
815
24-Φ48
1290
810
800
318
1010
950
905
24-Φ34
1025
950
901
24-Φ41
1070
990
930
24-Φ48
1440
905
900
330
1110
1050
1005
28-Φ34
1125
1050
1001
28-Φ41
1180
1090
1025
28-Φ54
1550
960
1000
410
1220
1160
1115
28-Φ34
1255
1170
1112
28-Φ48
1305
1210
1140
28-Φ58
1650
1010
1200
470
1450
1380
1325
32-Φ41
1485
1390
1328
32-Φ54
1525
1420
1350
32-Φ58
2200
1329
Note:Other standards available.


Pressure Test(MPa)

Pressure
Strength
Water Seal
Air Seal
1
1.5
1.1
0.6
1.6
2.4
1.8
2.5
3.75
2.75


Components/Material/Functions


Body
Plate
Rod
Seat
Seal ring
Applicable
temperature
Applicable
medium
QT450
WCB+ENP
1Cr13
1Cr18Ni9Ti
/1Cr18Ni9Ti
Soft
graphite
-29-425℃
Water.
Steam.
Oil
WCB
WC6
WC6+STL
25Cr2MoV
-29-550℃
CF8
CF8+STL
1Cr18Ni9Ti
polytetrafluoroethylene
(PTFE)
-40-200℃
Nitric acid
CF8M
CF8M+STL
1Cr18Ni12Mo2Ti
Natural rubber,
Nitrilerubber,
Fluorine rubber, Ethylene propylene rubber/NR. NBR .
FPN .EPDM
Acetic acid
HT200
WCB+ENP
1Cr13
Soft
graphite
≦150℃
Water.Sewage
Brine.Steam
Food.Drug
Oil.Ph..
QT400-15
QT400-18+ENP
1Cr13

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