MDKW-SL Type Real Gas Sonic Nozzle Flow Calibration Facility

Category： Real Gas Circulation Calibration Facility

Product Description

Product Introduction

A real gas flow calibration device using sonic nozzles as flow standards. Suitable for testing, calibration, and R&D of ultrasonic/thermal gas meters and gas flowmeters—ideal for gas meter/flowmeter manufacturers, metrological testing institutions, and gas companies.

Product Features

1. Sonic nozzles as flow standards

2. Supports real-gas calibration (standard test gas, natural gas, nitrogen, helium, air)

3. Auto-calibration of error of indication, repeatability, pressure loss, and leak tightness

4. Intelligent sonic nozzle combination for multi-flow-point real-gas calibration

5. Supports high/low temperature adaptability tests

6. One-click control (intelligent calibration and gas replacement)

7. Supports multiple meter output modes (photoelectric pulses, infrared communication, flowmeter pulses)

8. Fully enclosed circulation pipe and explosion-proof design (safe for flammable gas closed-loop calibration)

9. ESD safety interlock (linked with flammable gas alarm)

Parameters

Item	Parameters	Item	Parameters
Uncertainty	≤0.5%	Flow Range	（0.016～160）m³/h
Flow Stability	＜0.1%	Sonic Nozzle Discharge Coefficient	≤0.2%
Maximum Working Pressure	110kPa abs	Flammable Gas Replacement Medium	Nitrogen
Temperature Range	(-40～60)℃	Compressed Air	(0.45～0.7)MPa
Meters Under Test	Gas Meters G1.6～G100 Flow Meters DN10～DN5	Power Supply	220V±20V AC 50Hz 380V±38V AC 50Hz