86-21-59189606 tom.saic@gmail.com

Facebook
Twitter
Google+
LinkedIn
Pinterest

Shanghai Automation Instrumentation Co., Ltd.
  • Home
  • About us
  • Products
    • Shanghai Automation Instrumentation No. 3 Factory
      • Thermocouples
      • Thermal resistance
      • Bimetal thermometer
      • Temperature transmitter
      • Non-contact thermometer
    • Shanghai Automation Instrumentation No. 4 Factory
      • Pressure guages
      • Pressure transmitters
      • pressure controllers
    • Shanghai Far East Instrumentation Factory
    • Shanghai Automation Instrumentation No. 5 Factory
      • Ultrasonic Level Meter
      • Magnetic Level Gauge
      • Magnetostrictive Liquid Level Transmitter
      • Guided Wave Radar Level Meter
      • Electric Float Level Transmitter
      • Floating Ball Level Meter
      • Floating Ball Liquid Level Switch
      • Radio frequency admittance switch
      • Input-Type Liquid Level Transmitter
      • Tuning Fork Level Switch
      • Intelligent Radar Level Meter
      • Resistance level switch
    • Shanghai No. 9 Automation Instrumentation Co., Ltd.
      • Electromagnetic Flowmeter
      • V-Cone Flowmeter
      • Glass Rotor Flowmeter
      • Metal Tube Rotor Flowmeter
      • Throttling Device
      • Ellipse Flowmeter
      • Vortex Flowmeter
      • Turbine Flowmeter
      • Wedge Flowmeter
      • Sliding vane flowmeter
      • Roots flowmeter
      • Flow Switch
    • Shanghai Automation Instrumentation No. 11 Factory
      • Electric Actuator
      • electric-pneumatic valve positioner
      • angle electric actuator
      • Intelligent electric actuator
    • Shanghai Automation Instrumentation No. 7 Factory
      • Electric control valve
      • Pneumatic control valve
    • Shanghai Automation Instrumentation Co., Ltd.
    • Shanghai ZiYi Marine Instrument Co.,Ltd
      • Frequency Meter
      • Ammeter
      • Power Factor Meter
      • Voltmeter
      • Current voltmeter
      • Controllable Voltage Regulator
      • Megger
    • Shanghai Automation Instrument Tachometer and Instrument Motor CO.,LTD
      • Fixed magnetic tachometer
      • Handheld centrifugal tachometer
      • Rotating speed digital displayer
      • Electric tachometer
      • Non-contact handheld digital tachometer
      • Standard speed generator
    • Shanghai Dahua Instrument Factory
      • Automatic balanced recorder
      • Circular chart recorder
      • Intelligent digital display regulator
      • Intelligent data logging device
    • Shanghai Hua Dong Electronic Instrument Factory
      • Weighing sensor
      • Weighing controller
      • Weighing amplifier
      • Weighting Resistance Strain Meter
  • News
    • Company news
    • Industry-news
  • Download
  • F.A.Q
  • Inquiry
  • Contact us

News

Home News Constant system pressure with miniature ...

Many instruments and piping systems use miniature air pumps as the air source. Some systems need to maintain a relatively stable positive pressure. The ordinary micro air pumps used in the past are connected to pressure sensors to control the start and stop of the micro pumps to adjust the pressure. However, there are many troubles in use. Not only does the pump start and stop frequently, it is not conducive to the life of the pump. The main problem is that the pipeline flow and pressure fluctuate greatly, the pump flow is not accurately adjusted, and it is difficult to ensure stable pressure. Only pressure relief valve should be installed after commissioning. The root cause is the suboptimal performance of the pump itself. If there is a pump that can accurately control the flow rate, it can automatically and timely and accurately match the system after setting. Qihai's new speed-adjusting air pump adopts foreign high-quality brushless motors with the function of real-time feedback of speed signals. The system can conveniently control the flow through PWM speed adjustment and realize closed-loop control. The reliability of the pump is also very good. Another advantage is to solve the problem of interference to the control circuit. This imported version is better than the domestic version, which is very conducive to the stability of the system.


Product Categories

  • Shanghai Automation Instrumentation No. 3 Factory
    • Thermocouples
    • Thermal resistance
    • Bimetal thermometer
    • Temperature transmitter
    • Non-contact thermometer
  • Shanghai Automation Instrumentation No. 4 Factory
    • Pressure guages
    • Pressure transmitters
    • pressure controllers
  • Shanghai Far East Instrumentation Factory
  • Shanghai Automation Instrumentation No. 5 Factory
    • Ultrasonic Level Meter
    • Magnetic Level Gauge
    • Magnetostrictive Liquid Level Transmitter
    • Guided Wave Radar Level Meter
    • Electric Float Level Transmitter
    • Floating Ball Level Meter
    • Floating Ball Liquid Level Switch
    • Radio frequency admittance switch
    • Input-Type Liquid Level Transmitter
    • Tuning Fork Level Switch
    • Intelligent Radar Level Meter
    • Resistance level switch
  • Shanghai No. 9 Automation Instrumentation Co., Ltd.
    • Electromagnetic Flowmeter
    • V-Cone Flowmeter
    • Glass Rotor Flowmeter
    • Metal Tube Rotor Flowmeter
    • Throttling Device
    • Ellipse Flowmeter
    • Vortex Flowmeter
    • Turbine Flowmeter
    • Wedge Flowmeter
    • Sliding vane flowmeter
    • Roots flowmeter
    • Flow Switch
  • Shanghai Automation Instrumentation No. 11 Factory
    • Electric Actuator
    • electric-pneumatic valve positioner
    • angle electric actuator
    • Intelligent electric actuator
  • Shanghai Automation Instrumentation No. 7 Factory
    • Electric control valve
    • Pneumatic control valve
  • Shanghai Automation Instrumentation Co., Ltd.
  • Shanghai ZiYi Marine Instrument Co.,Ltd
    • Frequency Meter
    • Ammeter
    • Power Factor Meter
    • Voltmeter
    • Current voltmeter
    • Controllable Voltage Regulator
    • Megger
  • Shanghai Automation Instrument Tachometer and Instrument Motor CO.,LTD
    • Fixed magnetic tachometer
    • Handheld centrifugal tachometer
    • Rotating speed digital displayer
    • Electric tachometer
    • Non-contact handheld digital tachometer
    • Standard speed generator
  • Shanghai Dahua Instrument Factory
    • Automatic balanced recorder
    • Circular chart recorder
    • Intelligent digital display regulator
    • Intelligent data logging device
  • Shanghai Hua Dong Electronic Instrument Factory
    • Weighing sensor
    • Weighing controller
    • Weighing amplifier
    • Weighting Resistance Strain Meter

Links

LatestPost

  • What are the related problems of using t
    2020-12-23
  • How to choose thermal resistance or ther
    2020-12-17
  • Thermocouple sensor temperature range
    2020-11-18

Feedback

Contact Us

1718261188

15021127601

86-21-59189606

tom.saic@gmail.com

No. 191 West Guangzhong Road, Shanghai

Mobile Website

Copyright © 2016 Shanghai Automation Instrumentation Co., Ltd. All Rights Reserved.