Integrative Orifice Plate Flowmeter
● OVERVIEW
The integrative orifice plate flowmeter produced in our company is designed to assemble the orifice plate pressure device and integrative flowmeter at the factory, minimize the measure error caused by assembling or mismatching with the second instrument, maximize improvement of measurement accuracy of orifice plate pressure device. At the same time, to meet the requirements of customers, the installation and maintenance costs will be at least. Integrative flowmeter integrates differential pressure and pressure transmitter, support input of PT100 temperature sensor.
● MAIN STANDARDS
AGA3/AGA8 Orifice Metering of Natural Gas/ Compressibility Factors of Natural Gas and other Related Hydrocarbon Gases
GB/T2624 Measurement of Fluid Flow by Means of Orifice Plates, Nozzles and Venturi Tubes Inserted in Circular Cross-section Conduits Running Full.
GB/T21446 Metering the Flow Rate of Natural Gas With Standard Orifice Plate.
JB/T7252 Valve Type Orifice Plate Pressure Device.
JJG640 Pressure Differential flowmeter (Regulations governing metrological verification of the People’s Republic of China).
JB/T82 Steel Pipe Welding Neck Flanges with Male and Female Face (Male and Female Face as well when for low pressure).
GB/T5464 General-purpose Specification for the Packaging of Instrumentation Products.
GB/T8603 Technical Requirements of Measuring Systems for Natural Gas
●TECHNICAL SPECIFICATIONS
1. Suitable medium: natural gas, sulf-natural gas, gas, steam and cleaning oil,etc.
2. Medium temperature: -29℃~121℃
3. Pressure class: PN1.6~16Mpa(to be customized when over PN 16MPa)
4. Size: DN50~DN600mm (to be customized when over 600mm)
● MATERIAL OF MAIN PARTS
Component description | Non-sulfur resistant | Sulfur resistant |
Valve body, valve cap | Cast iron WCB | |
Orifice plate | Austenitic Stainless Steel | |
Seals | Rubber 5080 | Fluorine rubber F370 |
Valve plate | 2Cr13 | 318 |
Flange | 20 (unless otherwise specified in contract) | |
Flowmeter case | Casting aluminum alloy | |
● MAIN PERFORMANCE
To meet the different requirements of customers, our company introduces the following two kinds of flow computers for selection:
Model | FloBoss103 | RoseMount3095MV |
Executive Standards | AGA3/AGA8 | AGA3/AGA8,ASME Steam density |
Precision | 1% | 1% |
Range Ratio | 10:1 | 8:1 |
Local Display | Pressure, temperature, differential pressure, instant flow, accumulated flow etc. | Pressure, temperature, differential pressure, instant flow, accumulated flow etc. |
Communications | Built-in port LOI/RS485, ROC or MODBUS agreement. | HART agreement, after matching the signal distributor, the received digital signal will be converted to multi-channel 4-20mA current (DP,AP,GP,PT,flow) for far spread (Optional) |
Far-distance Communications | Communication card (RS232 card or MODEM card) (Optional) | |
Internal Records | Ten minutes report of 4 data points can be saved for 30 days (Can be configured) | Accumulate total flow |
Power Supply | DC12V/24V | DC24V (Two-wire system) |
Connection Lines | Four lines, I / O card to be an additional line | Signal and power sharing two lines |
Battery Configuration | Built-in battery-powered (about 7 days)/ Optional solar panel | N/A |
Input | 4 points I / O card (optional) | |
Output | Digital signals, analog signals and on-off signals(optional) | Digital signal be added on the instant flow signal of 4-20mA. |
Notes: Please see the operation manual for the details.