R-71700 series of high-performance butterfly valve

R-71700 series of high-performance butterfly valve with double eccentric structure design. The center of the shaft is biased away from the center of the valve body structure and combined with the design of the arc sealing surface of the valve plate, the valve plate can be quickly separated from the sealing seat when opening to reduce the friction force of the sealing surface, and the valve plate has better sealing performance when it is closed . Center self-positioning seal seat design combined with a unique seat compensation seal, the seat wear to be effectively compensated, while reducing the sealing friction to the valve, the operating force is greatly reduced effectively improve the butterfly valve control accuracy . The series of butterfly valve seal life, excellent long-term sealing performance for the general corrosive gas liquid medium regulation and cut off use.

R-71700 series of high-performance butterfly valve

Butterfly valve parameters:

Size Specifications Range: 2 "-48" DN50-DN1200

Pressure rating range: ANSI 150-300 # PN1.0-PN4.OMpa

Trim features: axial two eccentric structure, compensated seal seat, valve plate arc sealing surface

Body type group: Straight-through

On the boring cover type: standard one

Mud degree range: -45 ℃ -250 ℃

Shaft sealing form: self-sealing gravel letter structure flexible graphite packing structure

Standard Dredge Level: CLASS VI

Stream a characteristics: approximate equal percentage

Connection with the pipeline: on the folder, flange

Adjustable ratio: 30: 1

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EvoTec Three Phase Synchronous Generator including Lower Voltage Three Phase Synchronous Generator, Electric Power Generator ,60Hz Industrial Alternator, 16Kw Synchronous Generator .Our alternator are widely used in industry, commercial, real estate, hospital, hotel, railway, telecommunications, data-centers and mining etc. 


The specific technical features are listed below: 
Speed: 1500rpm or 1800rpm 
Frequency: 50 Hz or 60Hz 
Number of Poles: 4 
Power: up to 3500KVA 
Voltage: 110V-690V,High Voltage:3.3KV-13.8KV 
Insulation: class H 
Power Factor: 0.8 
Voltage Regulation Rate: ±0.5% 
Altitude: 1000M 
Temperature Rise Class: class H 

Ambient Temperature: 40 
Overload:10% for 1 hour in every 12 hours 
Degree of Protection: IP21 (IP23, IP44, IP54 on request) 

Special Features: 

  • higher motor starting capability 
  • a reliable long life with superior class H insulation 
  • high thyristor load withstand capability for mobile phone and telecom applications 
  • ease of maintenance with integrated components and outboard exciter/rotating rectifier 
  • wide range of coupling discs/adaptor for single bearing configuration, suitable for wide range of engine brands




Lower Voltage Three Phase Synchronous Generator

Evotec Th Series High Voltage Generators

Lower Voltage Three Phase Synchronous Generator

Electric Power Generator,Lower Voltage Three Phase Synchronous Generator,60Hz Industrial Alternator,16Kw Synchronous Generator

EvoTec Power Generation Co., Ltd , https://www.evotecgen.com