Valve Series>> Electric welding butterfly valve 



 Electric welding butterfly valve 

 Outline 

 Electric welding butterfly valve for high temperature, high pressure, fire, pipe insulation, etc. to open and close or adjust the media use. Its main features are as follows: 

 1, compact structure, small size, light weight, flexible operation, easy to use; 
 2, three-dimensional eccentric elasticity or multiple-level hard-seal structure, reliable sealing performance of its zero leakage; 
 3, the valve can not be blue, wrap insulation for pipes and great convenience and aesthetics; 
 4, high temperature, high pressure, corrosion, wear-resistant characteristics. . 

 Standard 

 Welding Size:: GB1224; ANSI B16.25; DIN2559 
 Structure Length:: GB/T12221-1989; API609 
 Pressure Test:: GB/T13927-1992; API598 

 Executive body 

 Type: QY Series Features: 
 1. Powerful: intelligent, modulating, switching. 
 2 small size: the volume equivalent to only about 35% of similar products. 
 3 Easy to use: single-phase power, simple wiring; using original ball protruding structure, so that observation is more convenient; free refueling point inspection-free, waterproof anti-rust, installed at any angle. 
 4 protection device has a double limit, thermal protection, overload protection. Transit time 15 seconds, 30 seconds, 45 seconds, 60 seconds. And with manual functions. 
 5 Intelligent NC: built-in modules using advanced computer chip, and intelligent control software directly to the receiving computer or industrial instruments such as the output of standard signals (4-20mA DC / 1-5VDC) to achieve the intelligent control valve opening and precise positioning. 
 Can also be used or NA Series 3810 Series electronic actuators. May choose PSQ series or DYR series. ≥ DN 200 diameter valves generally use the 380VAC electric actuator. Domestic brands such as Ruiji, Australia Rostock, Yangzhou power, two-day, Lan Ling, etc.; foreign brands Britain Rotork, Bernard, France, Germany, Ou Ma, Xi Bosi, Germany (Siemens) and so on. 


 Main technical parameters 
 Nominal diameter DN (mm) 50 ~ 700 
 Nominal pressure PN (MPa) 0.6 1.0 1.6 2.5 4.0 
 Test pressure Ps (MPa) strength test 0.9 1.5 2.4 3.75 6.0 
 Seal test 0.66 1.1 1.76 2.75 4.4 
 Gas seal test 0.6 0.6 0.6 0.6 0.6 
 Medium water, steam, oil, acids and corrosive. 
 Temperature Carbon Steel: -29 ℃ ~ 425 ℃ Stainless steel: -40 ℃ ~ 600 ℃ 


 The name of the main parts of the material parts materials 
 Cast steel valve, stainless steel, chrome molybdenum steel and special materials 
 Butterfly plate steel, alloy steel (chrome plated), stainless steel, chrome molybdenum steel and special materials 
 Ring stainless steel, anti-wear material 
 Stem 2Cr13, 1Cr13 stainless steel, chrome molybdenum steel 
 Flexible graphite packing