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WQL Type Critical Flow Venturi Nozzle

Product Description

Product Introduction

A high-precision flow measurement standard based on the fluid mechanics critical flow principle, with a flow range of 0.001～1024 m³/h and compatibility with various gaseous media. It delivers accurate and stable flow measurement & control performance, and is widely used in oil & gas, chemical engineering, metallurgy, environmental protection, semiconductors, aerospace, pharmaceuticals and other industries, providing reliable support for all gas flow measurement and control scenarios.

Product Feature

1. High-precision: Internationally recognized, long-term high accuracy (flow stability＜0.1%)

2. Stable operation: Professional design (unaffected by downstream pressure fluctuations)

3. Wide turndown ratio: 10:1 (single nozzle); up to 100:1 (multiple parallel nozzles)

4. Maintenance-free: No moving parts, no wear (service life >10 years)

5. Low pressure loss: Precision-machined internal channels (reduces fluid pressure loss)

6. Corrosion & high-temperature resistance: 316L stainless steel (suitable for complex conditions)

7. Ultra-low flow coverage: Minimum 0.001 m³/h (fills international gap in 0.001～0.01 m³/h range)

Parameters

Item	Parameters	Item	Parameters
Flow Range	（0.001～1024）m³/h	Discharge Coefficient Expanded Uncertainty	≤0.2%
Flow Stability	＜0.1%	Material	316L Stainless Steel
Installation Method	Circular Straight Pipe or Large Space	Applicable Media	Various Gaseous Media