Double seat regulation valve ZXN
C. ZXN CONTROL VALVES
ZXN pneumatic diaphragm double-seated regulating valve
It has double-disc guide, and multi-spring pneumatic actuator. It is of compact configuration, light weight, motion agility, and limited loss of pressure drop, large valve capacity and exact flow characteristics. It is widely applied to the fields of petroleum, chemical plant, electric power and smelting
Main technical parameters:
1) nominal size: DN 20-200mm (3/4"~8)
2) nominal pressure: PN(MPa)1.6\4.0\10.0(ASME Class: 150/400/600)
3) leakage class: IV/V/VI
4) flow characteristics: Equal percentage, linear
5) temperature range: -196~+560celsius.
Types of ZXN:
*ZXNO Standard type, the operating Temperature -20 ~ +200celsius, leakage grade II/IV. (PIC 1)
* ZXNG Heat dispersing type, the valve covers additional heat radiator which can be used for medium of temperature -60 ~ +450celsius occasions (PIC 2)
* ZXNV The bellows type, which guarantee the sealing of the movement of the stem to form a complete seal environment, blocking external fluid leakage (PIC 3)
* ZXND low temperature type, the valve using long-necked tube and bellow sealed structure which can be used for cryogenic -196celsius occasions (PIC 4)
* ZXNQ regulate and cut-off valve whose soft sealing type structure up to class VI leakage standards (micro-bubble level) (PIC 5)
* ZXNJ-type jacket and insulation belt with stainless steel insulation jacket for easy to crystallize after cooling fluid \ solidification caused by blockage occasions (PIC 6)
Spool \ seat are made of build-up Stellite alloy, suitable for high temperature \ deep cold and other harsh conditions.
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.
