Motor-driven, electric heavy duty valve
ZMK/ ZNK/ ZKK HIGH PRESSURE CONTROL VALVE
This series is a successful self-research product, mainly to meet the need of the power plant, especially for 300/600MW large-scale thermal power generation equipment, oil and chemical plant.
There are ZMK(pneumatic high pressure regulating valve), ZKK(electric high pressure valve), ZNK(high pressure regulating by hand).
DN(mm)20~250 (3/4"~10);
PN(MPa)1.6\4.0\6.4\10.0 (ASME Class 150/300/400/600);
Working temperature: 250~400celsius.
Flow characteristic: Equal percent, linear.
The key technology of ZKK ZNK-type high-pressure regulating valve is the inside valve trim structure and its manufacturing technics.
According to the spot condition, there are two types of trim are available, full-stack-plate valves (Figure 1) and the other one is stack plate and the window-shaped sleeve of the modular structure (Figure 2).
Two kinds of structural forms, the former is applied in high-pressure differential occasions system such as the power plant or chemical industry and high-pressure differential occasion upon small opening.
The latter in medium and high pressure occasion upon normal opening when pressure differential is not large.
Anti-air erosion of high-pressure differential control valve body (Figure 3)
Please contact us for more details if you have any interesting.
Zhejiang Yongsheng Instrumentation Co., Ltd. is a professional shareholding enterprise. We specialize in the production of instrumentations of industrial automation - control valves.
Located beside the beautiful Fuchun river in the south of Hangzhou City, our company covers an area of over 30, 000 square meters and possesses more than 200 employees, including over 60 senior and medium-level technicians in various fields. Our main products include: Pneumatic diaphragm control valve, self-operated pressure control valves, linear-motion regulating valve series, rotary-motion regulating valve series, intelligent control valve series with more than 200 types and thousands of specifications. With annual output of control valves more than 20, 000 sets. In 2008 our company invested 30 million yuan found the Yongsheng fluid machinery Co., Ltd. With annual output of 5000 tons and start the processing line of new craft cast steel, stainless steel, cast iron which guarantee the valve quality at first manufacture process.
Our company adopts the scientific management, strictly according to the ISO9001: 2000 quality management system. We carry out the high-standard production relying on the solid technological power, advanced equipment, production technique and perfect means of test, and provide the systematic services based on the complete after-sales service system. In addition, we constantly produce high-quality products expected and required by the customers, for pursuing for existence in competition, benefits in quality, advancement in technology and promotion in management.
If you are interested in our products, please feel free to contact us for more information. We are looking forward to cooperating with you in the near future.
