Fluorine-lined control valve (pneumatic)
Nominal diameter: DN20~3500mm
Pressure range: PN1.6~6.4MPa
Operating temperature: -40~180 ℃ -20~+150 ℃
Manufacturing standard: GB/T4213-1992
Flange standard: GB/T9113-2000
Structure length: GB/T12221-2005
Gland type: bolt compression type
Internal packing: V-type polytetrafluoroethylene packing
Product overview
Pneumatic membrane lined
fluorine control valve is composed of pneumatic membrane actuator and
straight-through single-seat fluorine-lined valve. The parts in contact
with the medium of the fluorine-lined regulating valve are all
high-pressure injection molding process, lined with corrosion-resistant
and aging resistant polyperfluoroethylene propylene, and PTFE corrugated
pipe sealing to ensure no leakage. It is widely used in chemical,
petroleum, metallurgy, pharmaceutical, electric power and other
industries to control and regulate the process of acid, alkali strong
corrosive medium and toxic, volatile, permeable and other gaseous and
liquid media.
Structural features
1. The
corrosion-resistant valve cavity, valve core, valve seat and valve stem
are all 316 stainless steel, which can resist acid, alkali and strong
corrosion;
2. Good sealing performance, using polytetraethylene bellows and packing double seal to ensure no leakage;
3. The leakage amount is small because the valve core and valve seat
are soft seals, and the leakage amount is lower than the national IV
standard;
4. It adopts light and small multi-spring actuator, which is small in size, light in weight and high in adjustment accuracy;
5. The leakage amount is less than 0.01% of the rated capacity of the valve;
6. The differential belt positioner is less than 1% of the full stroke;
7. Basic error: with positioner: less than ±1% of the full stroke.
Main connect dimensions
DN(mm) |
L |
H1 |
H3 |
actuator |
|||||||
A |
C |
H2 |
H4 |
H5 |
B |
D |
H8 |
||||
20(3/4") |
180 |
155 |
65 |
232 |
220 |
255 |
180 |
- |
- |
225 |
370 |
282 |
220 |
258 |
180 |
305 |
260 |
225 |
370 |
||||
25(1") |
185 |
165 |
70 |
232 |
220 |
255 |
180 |
- |
- |
255 |
500 |
282 |
220 |
258 |
180 |
305 |
260 |
255 |
500 |
||||
32(1-1/4") |
200 |
165 |
80 |
282 |
220 |
258 |
180 |
305 |
260 |
255 |
500 |
308 |
220 |
280 |
180 |
305 |
260 |
255 |
500 |
||||
40(1-1/2") |
220 |
225 |
80 |
282 |
220 |
258 |
180 |
305 |
260 |
255 |
500 |
308 |
220 |
280 |
180 |
305 |
260 |
310 |
700 |
||||
50(2") |
250 |
225 |
88 |
308 |
220 |
280 |
180 |
305 |
260 |
310 |
700 |
65(2-1/2") |
275 |
300 |
102 |
308 |
220 |
280 |
180 |
305 |
260 |
310 |
700 |
394 |
270 |
360 |
236 |
580 |
305 |
310 |
700 |
||||
80(3") |
300 |
300 |
140 |
308 |
220 |
280 |
180 |
305 |
260 |
310 |
700 |
394 |
270 |
360 |
236 |
580 |
305 |
310 |
700 |
||||
100(4") |
350 |
300 |
170 |
394 |
270 |
360 |
236 |
580 |
305 |
310 |
700 |
125(5") |
400 |
400 |
250 |
394 |
270 |
360 |
236 |
580 |
305 |
310 |
750 |
498 |
320 |
435 |
310 |
675 |
330 |
310 |
750 |
||||
150(6") |
486 |
400 |
260 |
394 |
270 |
360 |
236 |
580 |
305 |
310 |
750 |
498 |
320 |
435 |
310 |
675 |
330 |
- |
- |
||||
200(8") |
600 |
405 |
290 |
498 |
320 |
435 |
310 |
675 |
330 |
- |
- |