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E-mail
zhangbd@keyontechs.com
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Phone
18317143469
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Address
No. 7 Xinghao Road, Fengjing Industrial Park, Jinshan District, Shanghai
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Shanghai Keyang Technology Co., Ltd
Nozzle throttling device
NegotiableUpdate on 05/17
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Overview
The nozzle throttling device can be divided into two types: 1932 nozzle and long diameter nozzle, which are commonly used for high flow rate measurement. The nozzle throttling device designed and manufactured according to GB2624:2006/ISO5167-2003 specifications has the advantages of high strength, impact resistance, wide range ratio, low pressure loss, and large measurement range. Different structural forms of throttling devices are provided according to the design and application of the product, which are commonly used for high flow rate fluid flow measurement in high-temperature and high-pressure steam heating network pipelines of power plants.
Product Details
Product Features
Designed and manufactured according to GB2624.3-2006/ISO5167-3:2003;
Arc shaped entrance, low pressure loss, long lifespan, energy-saving and consumption reducing;
Standardized geometric dimension verification of throttling components can ensure measurement accuracy;
No movable parts, maintenance free;
Available in clamping and welding structures for selection;
Suitable for measuring high temperature, high pressure, and high flow rate fluids.
key parameters
Pipeline size:50mm ~500 mm；
BValue range:0.3 ≤ ß ≤ 0.8；
Reynolds number range:
1932 nozzle: When 0.3 ≤ β ＜ 0.44, 7 × 104≤ReD≤107；
When 0.44 ≤ β ≤ 0.8, 2 × 104≤ReD≤107
Long diameter nozzle: 104≤ReD≤107
Uncertainty:
The uncertainty when the ISA1932 nozzle is not calibrated is ± 0.8~± 1.2%. The uncertainty of the long diameter nozzle is ± 2%. After calibration, the uncertainty can reach ± 0.5%
repetitiveness≤ 0.15%
Pressure loss:25%~92% of differential pressure
Operating Temperature-196 ≤ T ≤ 700 °C
working pressure:
According to ANSI/HG20615 and DIN/HG20592 flange standards.
Pressure port specification:
1/4 "NPT or PSW
1/2 "NPT or PSW
1 "or 2" pressure connection flange
Nozzle material:
Conventional materials: 304, 316, 321. For more optional materials, please refer to the selection table
