WQLB Type Sonic Nozzles Gas Flow Standard Facility

Category： Sonic Nozzle Gas Flow Standard Facility

Product Description

Description

Uses sonic nozzles as flow standards for accurate, automatic, and efficient calibration of various gas flowmeters (turbine, vortex, precession vortex, roots, rotary piston, ultrasonic, mass flow, differential pressure) and industrial/commercial gas meters. Ideal for metrology and testing institutions, gas companies, gas flowmeter manufacturers, and energy enterprises.

Features

1. Sonic nozzles as standards (simple structure, stable performance, high accuracy, no moving parts, low maintenance)

2. Wide flow coverage via multi-nozzle combination

3. Supports negative/positive pressure methods (meets diverse flowmeter calibration needs)

4. Compatible with multiple testing methods (timed measurement, fixed-volume measurement, instantaneous flow measurement, image capture)

5. Intelligent control system (auto-collects pressure/temperature data for real-time calculation)

6. User-friendly HMI (real-time display of data, status, workflows, results)

7. Pneumatic clamping (easy, efficient operation)

Parameters

Item	Parameters	Item	Parameters
Uncertainty	≤0.5%，≤0.33%	Nozzle Discharge Coefficient	≤0.2%
Flow Range	(0.1～10000)m³/h	Flow Stability	＜0.1%
Flowmeters Specification	DN15 ～ DN400	Meters Under Test	G6～G100
Pressure Testing	(60～100)kPa abs(Negative Pressure Method） (0.1～2.5)MPa abs(Positive Pressure Method)	Temperature Testing	(0～50)℃
Straight Pipe Length	Upstream 20D, Downstream 10D	Humidity Testing	(0～100)%RH
Gas Source	Vacuum Pump (Negative Pressure Method) Compressed Air (Positive Pressure Method)	Power Supply	380V±38V AC 50Hz