Sealing ring material code |
Applicable temperature |
Applicable medium |
NR |
≤85℃ |
Water, air, acid and alkali |
CR |
≤85℃ |
Water, gas, acid and alkali |
NBR |
≤100℃ |
Water and oil products |
CPDM |
≤120℃ |
Water, steam, general acid-base class |
FKM |
≤150℃ |
Water, steam, strong acid and alkali |
valve body |
Cast iron, nodular cast iron, carbon steel, stainless steel |
Disc |
Cast iron, ductile iron, carbon steel, stainless steel, carbon steel fully covered by rubber or fluorine plastic |
The stem |
Carbon steel, nickel, phosphorus, stainless steel |
Valve seat sealing ring |
NR of natural rubber, chloroprene rubber, nitrile rubber, CR NBR three yuan EPDM ethylene propylene rubber and fluorine rubber FKM |
Pneumatic device |
Assembly part |
Nominal diameter DN |
Nominal pressure MPa |
Working pressure MPa |
L |
D |
D1 |
n-Φd |
H1 |
H2 |
Pneumatic device |
quality |
||||
|
|
|
|
|
|
|
|
|
Model |
A |
B |
H3 |
Do |
|
40 |
1.0 |
1.0 |
33 |
150 |
110 |
4-18 |
55 |
100 |
QB1-5-1 |
418 |
308 |
249 |
- |
22 |
50 |
|
|
43 |
165 |
125 |
4-18 |
64 |
120 |
QB1-5-1 |
418 |
308 |
249 |
- |
24 |
65 |
|
|
46 |
185 |
145 |
4-18 |
80 |
120 |
QB1-5-1 |
418 |
308 |
249 |
- |
26 |
80 |
|
|
46 |
200 |
160 |
8-18 |
112 |
130 |
QB1-10-1 |
418 |
308 |
249 |
- |
27 |
100 |
|
|
52 |
20 |
180 |
8-18 |
90 |
145 |
QB1-15-1 |
418 |
308 |
249 |
- |
28 |
125 |
|
|
56 |
250 |
210 |
8-18 |
112 |
160 |
QB1-20-1 |
418 |
308 |
249 |
- |
33 |
150 |
|
|
56 |
285 |
240 |
8-22 |
135 |
175 |
QB1-20-1 |
418 |
308 |
249 |
- |
34 |
200 |
|
|
60 |
340 |
295 |
8-22 |
160 |
210 |
QB2-40-1 |
418 |
308 |
339 |
- |
57 |
250 |
|
|
68 |
395 |
350 |
12-22 |
206 |
235 |
QB2-60-1 |
418 |
308 |
339 |
- |
72 |
300 |
|
|
78 |
445 |
400 |
12-22 |
232 |
273 |
QB3-90-1 |
585 |
275 |
340 |
305 |
1142 |
350 |
|
|
78 |
505 |
465 |
1-22 |
263 |
310 |
QB3-120-1 |
585 |
275 |
340 |
305 |
125.5 |
400 |
|
|
102 |
565 |
515 |
16-26 |
295 |
340 |
QB3-200-1 |
585 |
275 |
340 |
305 |
170.5 |
450 |
|
|
114 |
615 |
565 |
20-26 |
327 |
370 |
QB3-250-1 |
585 |
275 |
340 |
305 |
200 |
500 |
|
|
127 |
670 |
620 |
20-26 |
358 |
399 |
QB4-400-0.5 |
729 |
355 |
372 |
457 |
238 |
550 |
|
|
140 |
730 |
675 |
20-30 |
384 |
430 |
QB4-400-0.5 |
729 |
355 |
372 |
457 |
271 |
600 |
|
|
156 |
780 |
725 |
20-320 |
474 |
460 |
QB4-500-0.5 |
729 |
355 |
372 |
457 |
339 |
700 |
|
|
165 |
895 |
840 |
24-30 |
486 |
610 |
QB5-800.-0.25 |
910 |
395 |
429 |
457 |
515 |
800 |
|
|
190 |
1015 |
950 |
247-33 |
591 |
672 |
QB5-1200-0.25 |
910 |
395 |
429 |
457 |
655 |
900 |
|
|
203 |
1115 |
1050 |
28-33 |
640 |
735 |
QC1500-0.4 |
783 |
448 |
585 |
400 |
920 |
1000 |
|
|
216 |
1230 |
1600 |
28-36 |
721 |
800 |
HQ2500-0.25 |
783 |
448 |
650 |
400 |
1100 |
Lining: electric spark detection
Test and test according to GB/T13927 standard
Nominal pressure: PN (MPa)
Body: PN * 1.5
Seal: PN * 1.1