Product Overview
The pneumatic clamp-on soft seal butterfly valve consists of a centerline butterfly valve and a pneumatic actuator as a whole assembly. The pneumatic device adopts a new series of GT type pneumatic actuators, with double-acting and single-acting (spring return), gear transmission, safe and reliable; The large-diameter valve adopts a series of AW type pneumatic actuator pull-fork transmission, with reasonable structure and large output torque, with double-acting and single-acting types. It is especially suitable for two-way sealing and valve body easy to corrode occasions to adjust the flow rate and intercept the medium. The products are widely used in thermal power plants, mines, lime plants, cement plants, laundry detergent plants, etc.
Main component materials
Sealing Material:
Natural rubber (NR) -20~+85°C
Ethylene propylene rubber (EPDM) -40~+125°C
Nitrile butadiene rubber (NBR) -20~+82 °C
Silicone rubber (SI) -70~+150°C
Fluoroelastomer (FPM) -23~+150°C
Fluoroprene (CR) 0~+80°C
Butyl rubber (IIR) -40~+100°C
Polytetrafluoroethylene plastic (PTFE) +10~+150°C
Flange connection size: GB4216-84, GB9115-88
Length: GB2221-89;
Stress Test: GB? T13927-92；
Key Performance Specifications
|
Nominal diameter |
DN（mm） |
50～1000 |
||
|
Nominal pressure |
PN（MPa） |
0.6 |
1.0 |
1.6 |
|
Test pressure |
Strength test |
0.9 |
1.5 |
2.4 |
|
Seal test |
0.66 |
1.1 |
1.76 |
|
|
Hermetically sealed test |
0.6 |
0.6 |
0.6 |
|
|
Applicable media |
Air, water, sewage, steam, gas, oil, etc. |
|||
|
Drive form |
Pneumatic transmission |
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Main technical parameters:
|
DN(mm) |
DN50～1000mm |
|
Nominal Pressure(MPa) |
PN1.0、1.6、2.5MPa |
|
Valve body form |
Straight-through cast body |
|
Form of connection |
Flange type, pair clamp type |
|
Spool form |
Butterfly plate type |
|
Sealing packing |
Flexible graphite, PTFE |
|
Fundamental error |
With positioner: less than ±2% of full stroke |
|
Return |
With positioner: less than ±2% of full stroke |
|
Control mode |
Switching type (two-position switching), Regulating type (4~20mA control) |
|
Configure the actuator model |
GT, AT, AW series single and double acting pneumatic actuators |
|
Air supply pressure |
0.4～0.7MPa |
|
Air supply connection |
G1/4"、G1/8"、G3/8"、G1/2" |
|
Ambient temperature |
-30～+70℃ |
|
Form of action |
Single-acting actuator, double-acting actuator |
|
Accessories are available |
Positioners, solenoid valves, air filter pressure reducers, position retention valves, travel switches, valve position transmitters, handwheel mechanisms, etc |
Connection Size (mm)
|
DN |
L |
H |
HO |
A |
B |
0.6MPa |
1.0MPa |
1.6MPa |
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|
DO |
n-d |
DO |
n-d |
DO |
n-d |
||||||
|
50 |
43 |
63 |
315 |
180 |
65 |
110 |
4-14 |
125 |
4-18 |
125 |
4-18 |
|
65 |
46 |
70 |
330 |
180 |
65 |
130 |
4-14 |
145 |
4-18 |
145 |
4-18 |
|
80 |
46 |
83 |
390 |
245 |
72 |
150 |
4-18 |
160 |
8-18 |
160 |
8-18 |
|
100 |
52 |
105 |
431 |
240 |
72 |
170 |
4-18 |
180 |
8-18 |
180 |
8-18 |
|
125 |
56 |
115 |
455 |
240 |
72 |
200 |
8-18 |
210 |
8-18 |
210 |
8-18 |
|
150 |
56 |
137 |
626 |
350 |
93 |
225 |
8-18 |
240 |
8-22 |
240 |
8-22 |
|
200 |
60 |
164 |
720 |
350 |
93 |
280 |
8-18 |
295 |
8-22 |
295 |
8-22 |
|
250 |
68 |
206 |
800 |
550 |
350 |
335 |
12-18 |
350 |
12-22 |
355 |
12-26 |
|
300 |
78 |
230 |
860 |
600 |
350 |
395 |
12-22 |
400 |
12-22 |
410 |
12-26 |
|
350 |
78 |
248 |
883 |
600 |
350 |
445 |
12-22 |
460 |
16-22 |
470 |
16-26 |
|
400 |
102 |
289 |
972 |
600 |
350 |
495 |
16-22 |
515 |
16-26 |
525 |
16-30 |
|
450 |
114 |
320 |
1043 |
750 |
350 |
550 |
16-22 |
565 |
20-26 |
585 |
20-30 |
|
500 |
127 |
343 |
1098 |
750 |
380 |
600 |
20-22 |
620 |
20-26 |
650 |
20-33 |
|
600 |
154 |
413 |
1236 |
750 |
380 |
705 |
20-26 |
725 |
20-30 |
770 |
20-36 |
|
700 |
165 |
478 |
1431 |
750 |
380 |
810 |
24-26 |
840 |
24-30 |
840 |
24-36 |
|
800 |
190 |
525 |
1488 |
750 |
380 |
920 |
24-30 |
950 |
24-33 |
950 |
24-39 |
|
900 |
203 |
620 |
1615 |
1250 |
380 |
1020 |
24-30 |
1050 |
28-33 |
1050 |
38-39 |
|
1000 |
216 |
725 |
1765 |
1500 |
580 |
1120 |
28-30 |
1160 |
28-36 |
1170 |
28-42 |
