Pneumatic soft-seal butterfly valve
I. Product Introduction:
The D671X pneumatic soft-seal butterfly valve consists of a rubber-seal butterfly disc, a carbon steel or stainless steel valve body, and a valve stem. It is suitable for use in water supply and drainage, gas pipelines, etc., in industries such as light textile, paper making, food, pharmaceuticals, chemical engineering, petroleum, and electric power, where the temperature is ≤120℃, serving to regulate flow and cut off media. It features a simple structure, small volume, light weight, low material consumption, small installation size, quick opening and closing, 90° reciprocating rotation, and low driving torque. It is used to cut off, connect, and regulate media in pipelines, with excellent fluid control characteristics and sealing performance. It is widely used in water supply and drainage, sewage treatment, food, heating, gas, shipbuilding, hydropower, metallurgy, energy systems, light textile, and other industries, and is especially suitable for occasions requiring bidirectional sealing and where the valve body is prone to rusting.
II. Product Features:
1. Novel and reasonable design, unique structure, light weight, and quick opening and closing.
2. Low operating torque, convenient operation, labor-saving and flexible.
3. Can be installed in any position, easy to maintain.
4. Replaceable sealing parts, reliable sealing performance, achieving zero leakage with bidirectional sealing.
5. Sealing materials feature aging resistance, corrosion resistance, and long service life.
III. Parts Materials:
Main Parts |
Material |
Applicable Specifications |
Main Parts |
Material |
Applicable Specifications |
Valve Body |
Ductile Iron, Gray Cast Iron, Cast Steel, Stainless Steel |
50mm~1200mm, 50mm~1200mm, 50mm~300mm, 50mm~300mm |
Valve Stem |
Stainless Steel 410, Stainless Steel 316, Stainless Steel 304, Nickel-Phosphate Plated Carbon Steel |
50mm~1200mm, 50mm~1200mm, 50mm~1200mm, 50mm~1200mm |
Valve Disc |
Stainless Steel CF8, Stainless Steel CF8M, Nickel-Phosphate Plated Ductile Iron, Nylon-Coated Ductile Iron |
50mm~600mm, 50mm~600mm, 50mm~1200mm, 50mm~1200mm |
Valve Seat |
Rubber NBR, Ethylene Propylene Diene Monomer (EPDM) Rubber, Fluororubber (VITON), Silicone Rubber (SEP), Heat-Resistant EPDM, Wear-Resistant EPDM, PTFE |
50mm~1200mm, 50mm~1200mm, 50mm~1200mm, 50mm~1200mm, 50mm~1200mm, 50mm~1200mm, 50mm~600mm |
IV. Standard Parameters:
Nominal Diameter |
50mm~1200mm |
|
Flange Standard |
ISO7005-2 1988 |
|
Maximum Working Pressure |
1.6MPa |
|
Shell Test Pressure |
1.5 times the working pressure |
|
Seal Test Pressure |
1.1 times the working pressure |
|
Working Temperature Range |
NBR valve seat: -10℃~80℃; EPDM valve seat: -20℃~120℃ |
|
Allowable Long-Term Operating Temperature |
NBR valve seat: 0℃~60℃; EPDM valve seat: 0℃~100℃ |
|
Material |
(Refer to the "Optional Materials Table" section) |
|
Structural Dimensions |
ISO5752-88 |
|
Drive Type |
Handle |
50mm~300mm |
Worm Gear |
50mm~1200mm |
|
Pneumatic |
50mm~1200mm |
|
Electric |
50mm~1200mm |
|
Surface Treatment |
Epoxy Polyester Coating, Nylon 11, Baking Paint |
|
V. External Dimensions:
Nominal Diameter |
Structural Length |
External Dimensions |
Connection Dimensions |
|||||||||
0.6MPa |
1.0MPa |
1.6MPa |
||||||||||
Millimeter |
Inch |
L |
H |
H0 |
A |
B |
D0 |
n-d |
D0 |
n-d |
D0 |
n-d |
50 |
2 |
43 |
63 |
315 |
180 |
65 |
110 |
4-14 |
125 |
4-18 |
125 |
4-18 |
65 |
21/2 |
46 |
70 |
330 |
180 |
65 |
130 |
4-14 |
145 |
4-18 |
145 |
4-18 |
80 |
3 |
46 |
83 |
390 |
245 |
72 |
150 |
4-18 |
160 |
8-18 |
160 |
8-18 |
100 |
4 |
52 |
105 |
431 |
240 |
72 |
170 |
4-18 |
180 |
8-18 |
180 |
8-18 |
125 |
5 |
56 |
115 |
455 |
240 |
72 |
200 |
8-18 |
210 |
8-18 |
210 |
8-18 |
150 |
6 |
56 |
137 |
626 |
350 |
93 |
225 |
8-18 |
240 |
8-22 |
240 |
8-22 |
200 |
8 |
60 |
164 |
720 |
350 |
93 |
280 |
8-18 |
295 |
8-22 |
295 |
12-22 |
250 |
10 |
68 |
206 |
800 |
550 |
350 |
335 |
12-18 |
350 |
12-22 |
355 |
12-26 |
300 |
12 |
78 |
230 |
860 |
600 |
350 |
395 |
12-22 |
400 |
12-22 |
410 |
12-26 |
350 |
14 |
78 |
248 |
883 |
600 |
350 |
445 |
12-22 |
460 |
16-22 |
470 |
16-26 |
400 |
16 |
102 |
289 |
972 |
600 |
350 |
495 |
16-22 |
515 |
16-26 |
525 |
16-30 |
450 |
18 |
114 |
320 |
1043 |
750 |
380 |
550 |
16-22 |
565 |
20-26 |
585 |
20-30 |
500 |
20 |
127 |
343 |
1098 |
750 |
380 |
600 |
20-22 |
620 |
20-26 |
650 |
20-33 |
600 |
24 |
154 |
413 |
1236 |
750 |
380 |
705 |
20-26 |
725 |
20-30 |
770 |
20-36 |
700 |
28 |
165 |
478 |
1431 |
750 |
380 |
810 |
24-26 |
840 |
24-30 |
840 |
24-36 |
800 |
32 |
190 |
525 |
1488 |
750 |
380 |
920 |
24-30 |
950 |
24-33 |
950 |
24-39 |
900 |
36 |
203 |
620 |
1615 |
1250 |
380 |
1020 |
24-30 |
1050 |
28-33 |
1050 |
28-39 |
1000 |
40 |
216 |
725 |
1765 |
1500 |
580 |
1120 |
28-30 |
1160 |
28-36 |
1170 |
28-42 |
1200 |
48 |
254 |
780 |
1976 |
1500 |
580 |
1340 |
32-33 |
1380 |
32-39 |
1390 |
32-48 |
| Machinery & Equipment/Valves/Butterfly Valves | |
