Sonic Nozzle Flow Testing Apparatus for Industrial ApplicationsBasic Infor.Type | Gas Flow Device | Warranty | 1 Year |
Caliber | DN15-DN300 | After-sale Service | Free after-sale Service Support |
Measurement flow range | 0.06 m³/h~15000 m³/h | Expanded uncertainty | 0.25%,0.3%(k=2) |
Test qty for one time | 1pcs | Relative humidity | 40%~80% |
Atmosphere pressure | 86~106kPa | Ambient temperature | 0~50ºC |
Work Pattern | Vacuum Pump | Material | Stainless steel 304 |
Voltage Output | 380V/220V | Transport package | Standard Export Package |
Production Capacity | 800 pieces/year | Customized | Customized |
Flow Stability | <0.1% | Trademark | TNMA |
Origin | China | | |
overview
The LNQ sonic nozzle method gas flow standard device mainly consists of a Venturi sonic nozzle, a
vacuum pump unit, a control gas circuit, a test pipe circuit, sensors and control systems, and calibration
testing software systems. The Venturi sonic nozzle has several advantages such as a simple structure,
stable performance, high accuracy, no moving parts, easy maintenance, and a long calibration cycle (five
years).
During operation, the gas to be measured passes through a muffler, the meter under test, and then enters
a surge tank. It then flows through the sonic nozzle and control valve into a buffer tank before being
discharged into the atmosphere through the vacuum pump unit. When the gas flowing through the sonic
nozzle reaches the critical state, the mass flow rate passing through the meter under test and the nozzle
remains constant. Therefore, the flow rate through the sonic nozzle is constant within a given time
interval, and the system receives signals from the gas meter, such as sampled signals, temperature,
pressure, humidity sensors, and calculates the error of the meter under test.
The device can receive various signals such as current, voltage, and pulses in real-time. It can also use a
dynamic image processor or photoelectric sampler for automatic sampling of the meter under test,
enabling dynamic measurement.
Product Description1.The sonic nozzle method gas flow standard device is a gas flow standard device (negative pressure method) with a critical flow venturi nozzle as the main standard device.
2.All stainless steel pipe,long service time can be achieved.
3.the critical flow venturi nozzle, is designed and manufactured by our company based on the standard of ISO 9300:2005 "Measuring gas flow with critical flow venturi nozzle", and has been verified/calibrated by the national legal metrology agency.
4 The device can be used to detect various calibers and various forms of gas flow meters.Standards1.
JJF1204-2010 "Critical Flow Venturi Nozzle Method Gas Flow Standard Device Calibration Specification"
2.JJG 643-2003 "Standard Meter Method Flow Standard Device Verification Regulation"
3.JJG620-2008 "Critical Flow Venturi Nozzle Verification Regulation"
4. JJG633- 2005 "Gas Positive Displacement Flowmeter Verification Regulations"
5.JJG1030-2007 "Ultrasonic Flowmeter Verification Regulations"
6.JJG1029-2007 "Vortex Flowmeter Verification Regulations"
7. JJG1037-2008 "Turbine Flowmeter Verification Regulations"Certificates Honors of TNMA Software Copyright Utility Models Patent CertificatesOur Clients
Non-Standard Customized ProductsPiston Type Circulating Real Flow Gas Flow Experiment Device
Sonic Nozzle Method Gas Flow Standard Device
1000L Piston Type Gas Flow Standard Device
Standard Meter Method Gas Flow Standard Device
Gas Meter Temperature Adaptability
Detection Device and Other Gas Meter
Type Evaluation Test Equipment
Why Choose TNMA1. Strong R&D AbilityAs a professional manufacturer of metering calibration equipment for gas meters, water meters and various flow meters, our company has a group of technicians who are professionally engaged in the research of flow measurement technology. They have long been committed to the field of flow measurement and control. And the scientific research institute has a good cooperative relationship to ensure the leading position of the company's products in this industry.2.Strict Quality Management System Our company implement rigorous quality control processes to ensure that all products or services meet set standards. This results in high-quality deliverables and satisfied customers.
All the ready products will be tested before shipment and will provide test report.3.Accurate Delivery TimeWe have stable stock to avoid any delay of shipment.We are always put customers' requirements at the first place. We try our best to avoid any inconvenience for our customers.
With advanced technology and streamlined processes, we can provide fast and efficient calibration services for you.
4.Customer service and support: As a professional manufacturer, we provide comprehensive customer service and support, helping customers to troubleshoot issues, access technical assistance, and receive training on how to use your equipment effectively.
5.Innovation and leadership: Finally, as a leading manufacturer in this field, we are constantly innovating and improving your equipment, whether through new technology or by partnering with other industry leaders. This helps to ensure that our customers have access to the latest and most effective calibration solutions, keeping them ahead of the curve in utility measurement.