 |
Tiny resistance slow-closing butterfly check valve |
| It can avoid the water hammer by reducing the stress of water hammer . Light disc can ensure its long life. |
| |
| Material of parts |
Name |
Body |
disc |
stem¡¢oil jar¡¢Piston¡¢spring |
seat |
Material |
Cast iron ¡¢ Cast steel |
steel ¡¢ ductile iron |
Stainless steel
|
NBR
|
|
| |
| Performance |
Code |
H49X¡õ-1.0/1.6 |
Nominal Diameter (mm) |
DN40-1200 |
Nominal Pressure (MPa) |
1.0 |
1.6 |
Sealing testing pressure(MPa) |
1.1 |
1.76 |
£¨ Medium) |
Sea water¡¢Sewage water¡¢ Oil¡¢Weak acid alkali |
Medium Temperature
£¨ ¡æ £© |
¡Ü90 |
The time for closing (second) |
0-60 |
|
| |
| Outer Size Unit:mm |
Nominal Diameter |
size |
Nominal Diameter |
size |
L |
H |
H1 |
L |
H |
H1 |
40 |
140 |
200 |
88 |
350 |
290 |
480 |
297 |
50 |
150 |
215 |
98 |
400 |
310 |
550 |
324 |
65 |
170 |
225 |
108 |
450 |
330 |
585 |
351 |
80 |
180 |
235 |
118 |
500 |
350 |
640 |
379 |
100 |
190 |
280 |
130 |
600 |
390 |
720 |
434 |
125 |
200 |
290 |
148 |
700 |
430 |
780 |
491 |
150 |
210 |
310 |
172 |
800 |
470 |
840 |
549 |
200 |
230 |
350 |
210 |
900 |
510 |
990 |
600 |
250 |
250 |
415 |
240 |
1000 |
550 |
1050 |
655 |
300 |
270 |
450 |
264 |
1200 |
630 |
1210 |
770 |
|
| Note: the mounting dimension of flanges are designed in accordance with GB/T91132000, GB/T17241-1998,JB/T79-1994. |
| |
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