Self-operated Flow Control Valve(ZZLP)
Summary:
ZZLP self-supported flow control valve (flow control valve) is composed of a control valve and actuator with a set flow. It is suitable for non-corrosive liquids. The effective pressure of the flow control valve is divided into 0.02mpa and 0.05mpa, the user should choose according to the actual situation. When selecting, the pressure difference before and after the valve should be greater than the effective pressure. The control valve can be used in the maximum temperature of 200 ºC of corrosive liquid medium.
| Self-operated Flow Control Valve |
| Model |
ZZLP |
| Size |
DN15~250mm |
| Structure Form |
Bolted Type |
| Body Material |
Cast steel(WCB);
Stainless Steel(304;316;316L) |
| Norminal Pressure |
PN1.6; PN2.5; PN4.0MPa |
| Working Temperature |
0~-200ºC |
| Application Range |
Non-corrosive liquid media |
| Feature |
It requires no external energy and can be self-regulated by pipeline pressure. |
| Body Specification |
| Nominal diameter |
DN20~200mm |
| Flange Standard |
ANSI,JIS,GB,JB,DIN |
| Body Material |
Cast steel; Fluorine PTFE(F46) |
| Working Temperature |
-30~-350ºC |
| Plug Material |
Stainless Steel(Metal-to-metal)
Stainless steel inlaid with rubber ring(Soft Seal) |
| Pressure Balance |
Stainless Steel Bellows(DN15-125)
Balance Diaphragm(DN150-250) |
| Temperature Range of Control Valve |
| Allowable Working Temperature |
| Nominal diameter |
|
DN15-125mm |
DN150-250mm |
Sealing Type |
Metal-to-metal
|
≤150ºC |
≤140ºC |
| cooling tank≤200ºC |
cooling tank&lengthen≤200ºC |
| Soft Seal |
≤150ºC |
Features:
The use of pressure balance mechanism in the valve of self-supporting flow control valve makes the control valve more sensitive, more accurate and allows greater pressure difference. In addition, its setting points can be adjusted and the range is wider, which makes it easier for users to continuously adjust traffic within the set range. It integrates detection, control and execution of many functions. It can form an instrument control system independently. If the valve is used correctly, the user can easily achieve the flow distribution of the system; can also achieve the dynamic balance of the system; can greatly simplify the commissioning of the system: can stabilize the working state of the pump.
Working principle:
Self-operated flow control valve does not need additional driving energy. It relies on the pressure of the target body of the medium to be adjusted as the power source and medium pressure changes, according to the set value for automatic adjustment of energy-saving control device. It integrates detection, control and execution of many functions into an independent instrument 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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