Pneumatic knife gate valve
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Product Description
Product overview
Pneumatic knife gate valve is one of the important varieties of production process control valves. Through the use of solenoid valve can complete the switch control, with electric valve positioner can also complete the adjustment control. Users can choose according to actual needs. The main body is made of cast steel, stainless steel, etc. It is especially suitable for paper industry, chemical industry, coal, sewage, sugar and other industries.
Structural features
1. The valve adopts integral design, with small fluid resistance and flexible and convenient operation.
2, manual knife gate valve screw drive using double plane bearing design, making the transmission friction greatly reduced, so that the valve open light and smooth.
3. The knife gate valve seal seat adopts movable seal, and the O-shaped pre-tightening is used to provide pre-tightening force to make the seal seat close to the valve disc, which greatly reduces the leakage and has automatic compensation function for the wear of the seal pair in long-term use Improve the service life.
4, with fixed guide claw, no groove design, not easy to cause media accumulation or jam.
5, the valve seat can be based on the needs of the medium and working conditions, the choice of metal hard seal or soft seal: the gate plate with surface chromium plating or ion nitriding treatment, so that the gate plate is more wear-resistant, sealing surface longer service life; soft seal optional PTFE seat or enhanced PTFE seat or EPDM, nitrile rubber, good sealing, corrosion resistance.
6, the medium to adapt to a wide range: good sealing performance and economic practicality, the operation can be manual, pneumatic, electric, practical range is very wide.
Application scope: knife-type pneumatic gate valve is an important actuator in industrial automation control system, which can be controlled remotely and centrally to meet the needs of computer program control; nowadays, it is widely used in petrochemical industry, gas equipment, nuclear industry, electric power equipment, environmental protection water treatment, HVAC, iron and steel metallurgy, industrial kiln, canning equipment, wine making equipment, drying equipment, vacuum equipment, surface treatment, biopharmaceutical, food machinery, textile printing and dyeing, papermaking and other industries.
Outline connection dimension
| Pressure MPa |
Diameter DN(mm) |
L |
D2 |
D1 |
H |
N-m |
Pressure MPa |
Diameter DN(mm) |
L |
D2 |
D1 |
H |
N-m |
| 0.6 |
50 |
43 |
90 |
110 |
335 |
4-M12 |
1.01.6 |
50 |
50 |
100 |
125 |
335 |
4-M16 |
| 65 |
46 |
110 |
130 |
363 |
4-M12 |
65 |
50 |
120 |
145 |
363 |
4-M16 |
||
| 80 |
46 |
125 |
150 |
395 |
4-M16 |
80 |
50 |
135 |
160 |
395 |
4-M16 |
||
| 100 |
52 |
145 |
170 |
465 |
4-M16 |
100 |
50 |
155 |
180 |
465 |
8-M16 |
||
| 125 |
56 |
175 |
200 |
530 |
8-M16 |
125 |
50 |
185 |
210 |
530 |
8-M16 |
||
| 150 |
56 |
200 |
225 |
630 |
8-M16 |
150 |
60 |
210 |
240 |
630 |
8-M20 |
||
| 200 |
60 |
255 |
280 |
750 |
8-M16 |
200 |
60 |
265 |
295 |
750 |
8-M20 |
||
| 250 |
68 |
310 |
335 |
900 |
12-M16 |
250 |
70 |
320 |
350 |
900 |
12-M20 |
||
| 300 |
78 |
362 |
395 |
1120 |
12-M20 |
300 |
80 |
368 |
400 |
1120 |
12-M20 |
||
| 350 |
78 |
412 |
445 |
1260 |
12-M20 |
350 |
90 |
428 |
460 |
1260 |
16-M20 |
||
| 400 |
102 |
462 |
495 |
1450 |
16-M20 |
400 |
100 |
482 |
515 |
1450 |
16-M22 |
||
| 450 |
114 |
518 |
550 |
1600 |
16-M20 |
450 |
120 |
532 |
565 |
1600 |
20-M22 |
||
| 500 |
127 |
568 |
600 |
1800 |
16-M20 |
500 |
130 |
585 |
620 |
1800 |
20-M22 |
||
| 600 |
154 |
670 |
705 |
2300 |
20-M22 |
600 |
140 |
685 |
725 |
2300 |
20-M27 |
||
| 700 |
165 |
775 |
810 |
2500 |
24-M22 |
700 |
165 |
800 |
840 |
2500 |
24-M27 |
||
| 800 |
190 |
880 |
920 |
2800 |
24-M27 |
800 |
190 |
898 |
950 |
2800 |
4-M30 |
||
| 900 |
203 |
980 |
1020 |
3100 |
24-M27 |
900 |
203 |
1005 |
1050 |
3100 |
28-M30 |
||
| 1000 |
216 |
1080 |
1120 |
3400 |
28-M27 |
1000 |
216 |
1115 |
1160 |
3400 |
28-M30 |
||
| 1200 |
254 |
1295 |
1340 |
3600 |
32-M30 |
1200 |
254 |
1325 |
1380 |
3600 |
32-M36 |
Products Message
We will contact you within one working day. Please pay attention to your email.
Tianjin Hualida Valve Co., Ltd.
Address: Tianjin Jinan Industrial Development Zone
Mobile Phone: +86 15022758886
Website: www.hualidavalve.com
Mailbox: hualidavalve@163.com
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