Worm gear wafer soft seal butterfly valve consists of rubber seal, carbon steel or stainless steel disc and valve stem. Applicable temperature is 80~120℃. It is widely utilized in food, pharmacy, chemical industry, petroleum and other industries to regulate the flow and cut-off the medium.
Characteristics of Worm Gear Wafer Soft Seal Butterfly Valve
1. Novel design, unique structure, light weight, rapid open and close
2. Small torque, convenient operation
3. Can be installed in any position and it is convenient maintain.
4. Seal can be replaced and realize bidirectional sealing and zero leakage.
5. Aging resistance, corrosion resistance and long service life.
Parameter
Nominal diameter(mm) |
50~2000 |
50~1600 |
Nominal Pressure PN(MPa) |
0.6 |
1.0 |
1.6 |
Seal test(MPa) |
0.66 |
1.1 |
1.76 |
Shell test(MPa) |
0.9 |
1.5 |
2.4 |
Applicable temperature |
Nitrile rubber: -40℃~90℃, fluororubber: -20℃~200℃ |
Applicable medium |
Water, air, gas, oil and other weak corrosive fluid |
Leakage rate |
GB/T13927-92 |
Actuation mode |
Worm gear, electric, pneumatic, electrohydraulic |
Materials
Components |
Materials |
Valve body |
WCB、QT450-10、HT200、HT250 |
Disc |
WCB、QT450-10、HT200、HT250 |
Valve shaft |
2Cr13 |
Seal ring |
Oil resistent nitrile rubber |
packing |
Flexible graphite |
Implementation Standards
Manufacturing standard |
GB/T 122387-89 |
Flange standard |
GB9113-2000、GB17241.6-1998 |
Face to face standard |
GB12221-89 |
Inspection standard |
GB/T 13927-92 |
Main Dimensions Unit: mm
DN |
L |
H |
HO |
A |
B |
0.6MPa |
1.0MPa |
1.6MPa |
DO |
n-d |
DO |
n-d |
DO |
n-d |
50 |
43 |
63 |
306 |
180 |
200 |
110 |
4-14 |
125 |
4-18 |
125 |
4-18 |
65 |
46 |
70 |
321 |
180 |
200 |
130 |
4-14 |
145 |
4-18 |
145 |
4-18 |
80 |
46 |
83 |
346 |
180 |
200 |
150 |
4-18 |
160 |
8-18 |
160 |
8-18 |
100 |
52 |
105 |
387 |
180 |
200 |
170 |
4-18 |
180 |
8-18 |
180 |
8-18 |
125 |
56 |
115 |
411 |
180 |
200 |
200 |
8-18 |
210 |
8-18 |
210 |
8-18 |
150 |
56 |
137 |
447 |
270 |
280 |
225 |
8-18 |
240 |
8-22 |
240 |
8-22 |
200 |
60 |
164 |
572 |
270 |
280 |
280 |
8-18 |
295 |
8-22 |
295 |
8-22 |
250 |
68 |
206 |
646 |
270 |
280 |
335 |
12-18 |
350 |
12-22 |
355 |
12-26 |
300 |
78 |
230 |
738 |
380 |
420 |
395 |
12-22 |
400 |
12-22 |
410 |
12-26 |
350 |
78 |
248 |
761 |
380 |
420 |
445 |
12-22 |
460 |
16-22 |
470 |
16-26 |
400 |
102 |
289 |
877 |
450 |
470 |
495 |
16-22 |
515 |
16-26 |
525 |
16-30 |
450 |
114 |
320 |
938 |
480 |
490 |
550 |
16-22 |
565 |
20-26 |
585 |
20-30 |
500 |
127 |
343 |
993 |
480 |
490 |
600 |
20-22 |
620 |
20-26 |
650 |
20-33 |
600 |
154 |
413 |
1131 |
480 |
490 |
705 |
20-26 |
725 |
20-30 |
770 |
20-36 |
700 |
165 |
478 |
1476 |
640 |
660 |
810 |
24-26 |
840 |
24-30 |
840 |
24-36 |
800 |
190 |
525 |
1533 |
640 |
660 |
920 |
24-30 |
950 |
24-33 |
950 |
24-39 |
900 |
203 |
585 |
1655 |
750 |
860 |
1020 |
24-30 |
1050 |
28-33 |
1050 |
38-39 |
1000 |
216 |
640 |
1765 |
850 |
900 |
1120 |
28-30 |
1160 |
28-36 |
1170 |
28-42 |
1200 |
254 |
755 |
1995 |
850 |
900 |
1340 |
32-33 |
1380 |
32-39 |
1390 |
32-48 |