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Zhejiang Shige Fluid Technology Co., Ltd
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Zhejiang Shige Fluid Technology Co., Ltd

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    18968916605

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    No. 20 Industrial Road, Dongfang Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province

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D641F pneumatic flange butterfly valve

NegotiableUpdate on 02/06
Model
Nature of the Manufacturer
Producers
Product Category
Place of Origin
Overview
Product Introduction: Soft sealed butterfly valve is suitable for food, medicine, chemical, petroleum, electricity, etc. with temperature ≤ 120 ℃ and nominal pressure ≤ 16MPa; The function of regulating flow and intercepting media on water supply and drainage, gas pipelines, and other industries such as metallurgy, urban construction, textile, and papermaking.
Product Details

Application and characteristics of D641F pneumatic flange butterfly valve:
Soft sealed butterfly valves are suitable for food, medicine, chemical, petroleum, and electricity industries with temperatures ≤ 120 ℃ and nominal pressures ≤ 16MPa; The function of regulating flow and intercepting media on water supply and drainage, gas pipelines, and other industries such as metallurgy, urban construction, textile, and papermaking.

The main features of D641X pneumatic flange soft seal butterfly valve are:
1. Novel and reasonable design, unique structure, light weight, and quick opening and closing.
2. Small operating torque, easy to operate, labor-saving and agile.
3. Easy to install and maintain in any location.
4. The seals can be replaced, and the sealing performance is reliable, achieving bi-directional sealing with zero leakage.
5. The sealing material has the characteristics of aging resistance, corrosion resistance, and long service life.

The D641H pneumatic flange hard seal butterfly valve adopts the standard:
Design standard: GB/T12238-1989;
ISO 10631-1994 or BS EN593-1998
Flange connection dimensions: GB/T17241.6-1998:
IS0 7005-2 or BSEN 1092-2002
Structural length: GB/T 2221-1989:
LS0 5752-1988 or BS EN558-1
Pressure test: GB/T13927-1 992; JB/T9092-1999;
LS0 5028-1993 or BS 6755-l-1986

D641F typepneumatic butterfly valveMain technical parameters

Nominal Diameter
DNmm
50~2000
nominal pressure
PNMPa
0.6
1.O
1.6
Test pressure PsMPa
strength test
0.9
1.5
2.4
Sealing test
O.66
1.1
1.76
Applicable Medium
Air, water, sewage, steam, gas, oil, etc
Drive form
Manual, worm gear drive, pneumatic drive, electric drive



D641F typepneumatic butterfly valveThe materials of the main components

Part name
material
valve body
Ductile iron, cast steel, alloy steel, stainless steel
Disc
Grey cast iron, ductile iron, cast steel, stainless steel, and special materials
sealing ring
Various types of rubber, polytetrafluoroethylene
valve stem
2Cr13、 stainless steel
filler
O-ring, flexible graphite



Butterfly valve sealing material

Material variety
chloroprene rubber
Nitrile rubber
EPDM
PTFE
silicon rubber
VITON
code
X or 0rJ
XA or orJA
XB or orJB
XC, JC or 0rF
XD or orJD
X E or orJE
Maximum temperature resistance
82℃
93℃
150℃
232℃
250℃
204℃
Minimum temperature resistance
-40℃
-40℃
-40℃
-268℃
-70℃
-23℃
Applicable working temperature
≤65℃
≤80℃
≤120℃
≤200℃
≤200℃
≤180℃

External dimensions and connection dimensions of flange butterfly valve

Nominal Diameter
DN(mm)
Size (mm)
L
1.0MPa
1.6MPa
D
D1
Z-Φd
D
D1
Z-Φd
50
108
165
125
4-18
165
125
4-18
65
112
185
145
4-18
185
145
4-18
80
114
200
160
8-18
200
160
8-18
100
127
220
180
8-18
220
180
8-18
125
140
250
210
8-18
250
210
8-18
150
140
285
240
8-22
285
240
8-22
200
152
340
295
8-22
340
295
12-22
250
165
395
350
12-22
405
355
12-26
300
178
445
400
12-22
460
410
12-26
350
190
505
460
16-22
520
470
16-26
400
216
565
515
16-26
580
525
16-30
450
222
615
565
20-26
640
585
20-30
500
229
670
620
20-26
710
650
20-33
600
267
780
725
20-30
840
770
20-36
700
292
895
840
24-30
910
840
24-36
800
318
1015
950
24-33
1025
950
24-39