Natural gas turbine flow meter

Overview

Natural gas is a kind of high-quality energy and chemical raw material; we need precise metering for natural gas. The main component of natural gas is methane; Gas turbine flowmeter is a very good natural gas metering instruments. Gas turbine flow meters are suitable for non-corrosive gas measurements such as natural gas, propane, fuel gas and feed gas. The turbine meter measures volumetric flow based on gas turbine flowing passed a free-spinning rotor, with each revolution agreeing with a specific volume of gas or air.

Why we need temperature and pressure correction for natural gas flow meter ?

When the gas turbine flowmeter is measured in the pipeline, the density of natural gas varies with temperature and pressure. For accurate measurement, it is necessary to simultaneously track the temperature and pressure of natural gas, and convert the volume flow under different working conditions into a standard state or an agreed state volume flow. The gas turbine flowmeter can integrate temperature, pressure and flow sensors, and track and detect natural gas temperature and pressure and perform automatic compensation and compression factor correction calculation. Therefore, it has excellent low-pressure and high-pressure metering performance.

Features

✔ High precision, good repeatability, low pressure loss, good seismic performance
✔ In-line volume flow meter
✔ High quality bearings, low frictional resistance and good sealing
✔ The gas turbine flow instrument has pulse signal and analog signal output, which can have MODBUS communication interface,can be modbus natural gas turbine flow meter.
✔ Low power consumption can be powered by internal battery, or external power supply;
✔ With real-time data storage function, it can prevent data loss when battery is replaced or suddenly power-off
✔ Gas turbine flow meter with explosion-proof
✔ Low price cost gas flow meter

Technical Parameters

✔ Medium: clean, no impurities, medium and low flow rate natural gas
✔ Flow sensor range: 20mm (3/4 inch) ~ 400mm (16 inch)
✔ Temperature pressure correction/compensation function can be selected
✔ Process connection: threaded or flanged
✔ Accuracy: ±1.5%R, ±1.0%R
✔ Range ratio: 1:10~1:30
✔ Working power supply: built-in lithium battery 3.6VDC, external 24VDC
✔ Natural gas temperature: -20~60 °C,
✔ Gas turbine material: Housing: 304 stainless steel, impeller: anti-corrosion ABS or aluminum alloy

Natural Gas Turbine Flow meter Flow range

Size (mm)	Standard (m³/h)		Extended (m³/h)		Standard Pressure	Special Pressure
DN20	S	2-20	W	4-40	1.6Mpa	Thread≤4.0Mpa,Flange≤6.3Mpa
DN25	S	2.5-25	W	4-40		Thread≤4.0Mpa,Flange≤6.3Mpa
DN32	S	4-40	W	6-60		Thread≤4.0Mpa,Flange≤6.3Mpa
DN40	S	5-50	W	6-60		Thread≤4.0Mpa,Flange≤6.3Mpa
DN50	S1	6-65	W1	5-70		Thread≤4.0Mpa,Flange≤6.3Mpa
DN50	S2	10-100	W2	8-100		Thread≤4.0Mpa,Flange≤6.3Mpa
DN65	S	15-200	W	10-200		Flange≤6.3Mpa
DN80	S1	13-250	W	10-160		Flange≤6.3Mpa
DN80	S2	20-400	W	10-160		Flange≤6.3Mpa
DN100	S1	20-400	W	13-250		Flange≤6.3Mpa
DN100	S2	32-650	W	13-250		Flange≤6.3Mpa
DN125	S	25-700	W	20-800		Flange≤6.3Mpa
DN150	S1	32-650	W	80-1600		Flange≤6.3Mpa
DN150	S2	50-1000	W	80-1600		Flange≤6.3Mpa
DN200	S1	80-1600	W	50-1000		Flange≤4.0Mpa
DN200	S2	130-2500	W	50-1000		Flange≤4.0Mpa
DN250	S1	130-2500	W	80-1600		Flange≤2.5Mpa
DN250	S2	200-4000	W	80-1600		Flange≤2.5Mpa
DN300	S	200-4000	W1	130-2500		Flange≤2.5Mpa
DN300	S	200-4000	W2	320-6500		Flange≤2.5Mpa
DN350	S	400-8000	W1	150-4500		--------
DN350	S	400-8000	W2	300-9000		--------
DN400	S	500-10000	W1	300-9000		--------

Natural Gas Turbine Flow meter Types

Model	SGW-N	SGW-A	SGW-B	SGW-C	SGW-D
Picture
Display	No Digital Display No temperature and pressure compensation		Digital Display Instant & Totalized Flow No temperature and pressure compensation		Digital Display Instant & Totalized Flow Temperature and pressure compensation
Diameter	DN20-DN400
Output	Pulse	4-20mA	No	4-20mA/Pulse	4-20mA/Pulse
Power	24VDC±15%		Battery*1	24VDC±15%	24VDC±15% & Battery
Flow Range	Standard	Standard or Extended Flow range
RS485	No			RS485 Option
Power consumption < 0.5W
Protection level: IP65

*1 Battery for natural gas turbine flow meter can be used for around 56 months

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