Pneumatic Three-way Type Control Valve(ZJHQ,ZJHK)
Summary:
ZJHQ and ZJHX pneumatic diaphragm three-way control valve is a special three-way control valve developed for three-way control. There are two structural forms of confluent flow and diverging. The valve core structure adopts the cylinder thin wall window, and the side direction. It has the adjustment accuracy high and the movement is stable reliable. Pneumatic diaphragm three-way regulating valve confluence type is mainly used to mix two kinds of fluids into a third kind of fluid; The shunt type is mainly used to divide a stream of fluid into two streams, which can replace two single-seat regulating valves that switch each other. It is used for regulation and control of liquid, gas, steam.
| Pneumatic Diaphragm Three-way Type Control Valve |
| Model |
ZJHQ; ZJHX |
| Size |
DN25~200mm |
| Structure Form |
Straight-through Three-way Casting Type |
| Body Material |
Cast steel(WCB);Stainless Steel
(304;316;316L) |
| Norminal Pressure |
PN16; PN40; PN64MPa |
| Working Temperature |
-196~-450ºC |
| Application Range |
Liquid, gas, steam and other media. |
| Feature |
Be able to replace 2 sets of switch single control valve. |
| Action |
Air closing(B)-Air failure, valve to open(FO);
Air opening(K)-Air failure, valve to close(FC) |
| Accessory |
Posilioner/Air Filtralion /Pressure Reducing Valve /Transmilter/Handwheel |
| Body Specification |
| Manner |
Straight-through Casting Ball Type Valve |
| Nominal diameter |
DN20~200mm |
| Flange Standard |
JB/T79.1-94,792-94,etc. |
| Body Material |
Cast steel; Fluorine PTFE(F46) |
| Working Temperature |
Standard Type: -17-230°C ;Radiating Type:230-450°C;Low Temperature:-60-196°C; Bellows Seal Type:-40-350°C |
| Bonnet Type |
Bolted type |
| Packing Material |
V-type PTFE Packing;PTFE+Graphite packing;Asbestos Textile Packing;
Graphite Packing. |
| Structure Form |
Straight-through Three-way Casting Type |
| Components Valve Trim |
| Plug Type |
Single Seat Plunger Type |
| Flow Characteristic |
Equal Percentage Flow Characteristic;
Linear Characteristics |
| Plug Material |
Stainless Steel; Surfacing Stellite Alloy; Titanium, etc. |
| Actuator Specification |
| Manner |
ZHA/B Mutil-spring Diaphragm Actuator |
| Diaphragm material |
EPDM+N; NBR+N |
| Range of Spring(MPa) |
20-100(Standard);20-60; 60-100; 40-200; 80-240 |
| Supply Pressure(MPa) |
140-400 |
| Air connection |
RC-1/4" |
| Environment Temperature |
-30-70ºC |
| Model |
ZHA/B-22 |
ZHA/B-23 |
ZHA/B-34 |
ZHA/B-45 |
ZHA/B-56 |
| Active Area (cm²) |
350 |
350 |
560 |
900 |
1400 |
| Stroke(mm) |
10,16 |
25 |
40 |
40,60 |
100 |
Advantages:
Pneumatic diaphragm cut-off valve is a new type of high performance cut-off valve with fast speed, large thrust and large flow coefficient. According to the allowable pressure difference, medium characteristics and process pipe requirements, it can choose a single seat, sleeve, three-way cut-off valve. It is widely used in petroleum, chemical, metallurgy, electric power, light industry, textile and other industrial sectors of the production process automatic control and remote control system.
Company Introduction:
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.
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