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LQ Type Gas Flow Calibration SYSTEM
LQ Type Gas Flow Calibration SYSTEM
LQ Type Gas Flow Calibration SYSTEM
LQ Type Gas Flow Calibration SYSTEM
LQ Type Gas Flow Calibration SYSTEM

LQ Type Gas Flow Calibration SYSTEM

The critical flow nozzle calibration device is designed and manufactured according to the JJG 620-2008 "Critical Flow Venturi Nozzle Verification Regulation" and the JJF 1240-2010 "Calibration Norms for Critical Flow Venturi Nozzle Gas Flow Standard Devices," mainly serving metrology institutes and large and medium-sized flow meter manufacturers.

  • LQ Type Gas Flow Calibration SYSTEM
  • LQ Type Gas Flow Calibration SYSTEM
  • LQ Type Gas Flow Calibration SYSTEM
  • LQ Type Gas Flow Calibration SYSTEM
  • LQ Type Gas Flow Calibration SYSTEM

Product Advantages

  • The system adopts a flat layout, which can achieve single-station multi-diameter calibration, reducing manufacturing costs and offering high-cost performance.
  • A water ring vacuum pump or vacuum blower serves as the power source, with pneumatic clamps holding the flow meters.
  • The main body of the device is made of 304 stainless steel and is formed in one go through an automatic laser cutting process, ensuring manufacturing precision.
  • The software interface is user-friendly, with one-button operation making the entire process simple and convenient, allowing users to quickly get started.
  • It also features self-health monitoring and abnormality judgment functions to ensure the normal operation of the equipment.
  • This calibration device has strong universality and can precisely calibrate speed meters such as turbines, vortex streets, impellers, and swirl meters; volume meters like rotary vanes and industrial diaphragm meters; as well as differential pressure flow meters.

Technical Parameters

Calibration Method

Sonic Nozzle Method / Master Meter Method

Working Medium

Air

Flow Range

1~10000 m³/h

Calibration Diameter

DN15~DN300

System Stability

≤0.10%

Expanded Uncertainty

0.3% (k=2)

Control Mode

Automatic / Semi-automatic

Signal Type

Pulse, 4-20mA, RS485

Application Fields

Used in industries such as petroleum, chemical engineering, urban natural gas, and flow meter manufacturers for the verification and testing of gas flow meters. It is an essential tool to ensure the product quality, performance, and accuracy grade of flow meter manufacturing enterprises.

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  • Application-Fields40
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