Pneumatic Actuator Drive Single Seat Diaphragm Control Valve
Product Introduction
ZMAT/ZMBT pneumatic diaphragm control valve adopts the diaphragm valve body and pneumatic actuator. The valve is drive by the compressed air to control the fluid medium.
The connection between the body and diaphragm is "W" type sealing to isolation from the outside world (no packing). The flow channel is easy and smooth, suitable for medium of corrosive and highly toxic.
ZMAT/ZMBT pneumatic diaphragm control valve adopts the corrosion-resistant diaphragm without packing, elastic diaphragm for the throttling elements, the flow channel is smooth. Making the valve has the advantages of small resistance, large flow, no leakage and convenient and reliable, fire and explosion proof. It is widely used in industrial automation system of strong acid, strong alkali, strong corrosion, high viscosity, containing particles, with fiber and toxic and do not allow pollution of the media flow. If there is no air source on site, you can choose the same type of electric actuator instead.
Technical Parameters
| DN(mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
| KV |
No liner |
9.8 |
19 |
32 |
48 |
63 |
108 |
158 |
270 |
360 |
518 |
1114 |
| With liner |
7.8 |
17 |
28 |
41 |
55 |
87 |
127 |
240 |
311 |
415 |
1121 |
| Rated stroke L(mm) |
8 |
10 |
12 |
16 |
24 |
30 |
34 |
36 |
44 |
55 |
65 |
| Effective area Ae(cm2)) |
280 |
400 |
600 |
1000 |
| PN(mpa) |
0.6 1.0 |
| Flow characteristic |
Approximate equal percentage |
| Operating temperature (ºC) |
≤150 |
| Signal range Pr(KPa) |
20~100 40~200 400~600 |
| Allowable leakage |
The leakage is zero within the allowable differential pressure range |
Base Material
Body: HT200, ZG230~450
Diaphragm: TQ glue, natural glue, polytetrafluoroethylene
Bonnet: ZG230~450
Corrugated film: NBR sandwich reinforced polyester fabric
Spring: 60SiMn
Feature
1. Corrosion resistance. Almost able to withstand the corrosion of all media (including concentrated nitric acid and aqua regia).
2. Good sealing performance. Double sealing with bellows and packing to ensure no leakage.
3. The leakage is small. Because the valve core and valve seat adopt soft sealing, it is ensured that there is no leakage.
4. Equipped with HA actuator, with large output force and compact structure.
Actuator
Pneumatic diaphragm control valve using multi spring actuator, height and weight can be reduced by 30%. The inner surface of the valve body is coated with a variety of materials to avoid direct contact with the medium and withstand the corrosion of strong corrosive medium. When the valve is closed, the internal and external leakage is zero, especially suitable for the regulation of highly toxic medium or not allowed to pollute the medium. The valve body flow path is simple, the resistance is small, the rated flow coefficient is larger than the same caliber control valve.
| Diaphragm material |
Suitable temperature |
Suitable medium |
| Butyraldehyde rubber (grade B) |
-40~+100 |
Suitable for most inorganic acids such as sulfuric acid, hydrofluoric acid, phosphoric acid kinds of alkali and salt with good corrosion resistance |
| Natural rubber(Grade Q) |
-50~+100 |
Mainly used for purifying water, inorganic salts and dilute mineral acid media |
| Teflon |
-10~+150 |
Excellent chemical stability, corrosion resistance of strong acid, strong alkali and strong oxidant |
Technical parameters and performance
| Name |
No positioner |
With positioner |
| Intrinsic error % |
±10 |
±1 |
| Hysteresis error% |
≤8 |
≤1 |
| Dead band% |
≤6 |
≤0.4 |
| Leakage rate |
With liner: 10×capacity, no liner: 5×10×capacity |
| Rated flow coefficient error% |
10 |
| Liner |
Temperature (ºC) |
Applicable medium |
| No liner |
-10~+175 |
Non-corrosive |
| Soft rubber |
-10~+85 |
Cement, clay, coal dust, dry fertilizer |
| Hard rubber |
-10~+85 |
Inorganic alkali, salt, hydrochloric acid, gold-plated solution, soft water, fluoride, chlorine |
| Neoprene |
-10~+105 |
Animal oil, vegetable oil and lubricating oils, corrosive muds with wide pH range |
| Butyraldehyde rubber |
-10~+120 |
Most inorganic acid mortar |
| Enamel |
-10~+175 |
Wet inorganic acids, oxidized acids, halogens, alcohols, esters |
| Teflon 46 |
-20~+190 |
Sulfuric acid, hydrochloric acid, sodium hydroxide and other strong corrosive media |
Details and dimensions and weight
| DN(mm) |
L |
A |
H1 |
H |
G(Kg) |
| 20 |
150 |
280 |
52.5 |
400 |
21 |
| 25 |
160 |
280 |
57.5 |
408 |
23.5 |
| 32 |
180 |
280 |
67.5 |
418 |
28 |
| 40 |
200 |
308 |
75 |
464 |
33.5 |
| 50 |
230 |
308 |
82.5 |
487 |
38 |
| 65 |
290 |
394 |
90 |
520 |
65 |
| 80 |
310 |
394 |
100 |
530 |
73 |
| 100 |
350 |
394 |
110 |
550 |
94 |
| 125 |
400 |
498 |
135 |
575 |
160 |
| 150 |
480 |
498 |
150 |
590 |
195 |
| 200 |
600 |
498 |
190 |
630 |
290 |
Connection dimensions and standards
Flange standard: Cast iron is GB4216-86 Cast steel is GB9113-88, JB/T79-94
Flange seal standard: PN10, PN16 is RF, PN40,PN64 is FM, the body is M
Structural length standard: GB12221-89
Connection of actuator air signal: Internal thread M10×1
The flange and distance of flange end face can be manufactured according to the standard specified by the user. Such as ANSI, JIS, DIN standard.
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| Manual Ball Valve |
| Butterfly Valve |
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| Electric Butterfly Valve |
| Manual Butterfly Valve |
| Other Valves |
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| Gate Valve |
| Check Valve |
| Reducing Valve |
| Plug Valve |
| Safety Valve |
Company development
Certifications
Company Show
FAQ:
1. Are you trading company or factory?
We are factory in Yongjia, Wenzhou, China.
2. Are the prodcuts certified?
Yes, ISO, FDA, SIL 2, CE, LFGB and so on.
3. Delivery time?
7-15 working days usually, but it will be longer when peak season.
4. MOQ?
One set.
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