1)For ZZY/ZZC/ZZV series self-operating regulating valves, there is no need for any external power source, used fluid adjusted by own energy to regulate automatically, saving power source, pressure set value can be adjusted free during working, quick-opening flow, flexible operation, good sealing property, stable medium pressure, high regulating precision and low leakage. They are widely used in automatic control of the up-valve or back-valve pressure reduction or stabilization of the mediums such as air, liquid and vapor in various industrial furnace burning systems to control the ratio of two different kinds of gases, or in the leakage proof fuel system of the hydrogen cooling electric generating set, and for the micro-pressure automatic regulation of all kinds of fuel and half-finished petroleum of the industrial furnace burning system, oil tank stocking protective gas and heat treatment protective gas.
2) This series of products includes many type such as ZZY standard(self-operated regulating valve), ZZYP-150 1bBII (self-operated regulating valve with operated director), ZZC(self-operated pressure difference regulating valve) and ZZV( self-operated micro-pressure nitrogen-sealing regulating valve). The PN grade of this series of products are 150, 300 and 30, the body DN about 1/2-12 inches, the leakage standard is IV grade or V grade, the flow property is quick opening and sorts of specification are optional.
ZZY standard type with pressure regulating range of 15-4000Kpa, and main sorts of single-seat valve, cage valve, double-seat valve and four-way valve
ZZYP -150 1bBall type with pressure regulating range of 0.5-100Kpa and main sorts of single-seat valve and double-seat valve
ZZV type with pressure regulating range of 0.5-100Kpa
Main Material
Valve body: WCB, WC6, CF8, CF3, CF8M, CF3M
Disc: Metal parts: 304, 316
Valve rod: 420, 304, 30L, 316, 316L, 630
Soft Sealing parts: PTFE, reinforced rubber
Valve seat: 304, 304L, 316, 316L
Valve stem: 304, 304L, 316, 316L
Spring: 6Osi2Mn, 304, 50CrVA
Diaphargm: Butyronitrile, ethylene propylene, oil resistant rubber, silicon rubber, flrorine rubber
Membrane: Q235B
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.
