Name: Guangzhou natural gas turbine flowmeter
Brand: Guangzhou Dichuan Instrument Co., Ltd
Availability: InStock

4th Floor, East Building, Hengxing Industrial Park, No. 125 Qianfeng South Road, Shiji Town, Panyu District, Guangzhou City

Guangzhou natural gas turbine flowmeter

DC-LWQProduct features of natural gas turbine flowmeter

Adopting a new typesensorLow starting flow rate, low pressure loss, good anti vibration and anti pulsating flow performance, not easy to corrode, good reliability, and long service life;

Adopting a new type of microprocessor and high-performance integrated chips, with high computational accuracy, powerful overall functions, and superior performance;

Adopting advanced low-power high-tech, the whole machine has low power consumption. It can operate on both internal battery power for a long time and external power supply;

According to the flow frequency signal, the instrument coefficient can be automatically linearly corrected in eight segments, which can improve the calculation accuracy of the instrument according to user needs;

Adopting EEPROM data storage technology, it has the function of storing and querying historical data, and three historical data recording methods are available for users to choose from.

The flowmeter head can rotate 180 °, making installation and use simple and convenient;

High precision, generally up to ± 1.5% R and ± 1.0% R;

Good repeatability, short-term repeatability can reach 0.05% to 0.2%. It is precisely because of its good repeatability that flow meters are preferred for trade settlement;

■ It can detect the temperature, pressure, and flow rate of the detected gas, automatically track and compensate for the flow rate, and display the gas flow rate under standard conditions (Pn=101.325KPa, Tn=293.15K): real-time query of temperature, pressure, time, date, and other data.

DC-LWQNatural gas turbine flowmeterinstrument selection

1Basic parameters

Execution standards	Measurement of Gas Flow in Closed Pipelines - Gas Turbine Flowmeters (GB/T18940-2003)
Instrument model	LWQ	LWQ
Instrument diameter	DN350	DN400
signal output	Pulse signal, 4-20mA current signal control signal	Pulse signal, 4-20mA current signal control signal
Communication output	RS485communication	RS485communication
power supply	24VDCOr lithium battery	24VDCOr lithium battery
accuracy class	1.5level	1.5level
Range ratio	1：20	1：20
measuring range	400-8000m3/h	650-13000m3/h
monitor	optional	optional
temperature compensation	optional	optional
communication interface	optional	optional
Real time recording	optional	optional
Table body material	carbon steel	carbon steel
Material of the movement	aluminum alloy	aluminum alloy
Converter shell material	cast aluminium	cast aluminium
Explosion proof grade	ExdIIBT6Or ExiaICT4	ExdIIBT6Or ExiaICT4
protection grade	IP65	IP65
Overall Power Consumption	<1W	<1W
Installation method	Flange connection	Flange connection
Voltage resistance level	1.6MPa	1.6MPa
medium temperature	-20℃～80℃	-20℃～80℃
ambient temperature	-30℃～60℃	-30℃～60℃

Guangzhou natural gas turbine flowmeter2.Flow range and working pressure

Nominal diameter (mm)	model	Standard range （m3/h）		Expand range （m3/h）		Voltage resistance level （MPa）	Specially designed high voltage level （MPa）	Installation method
DN25	LWQ-25□	S	2.5-25	W	4-40	1.6	2.5,4.0	Flange (thread)
DN40	LWQ-40□	S	5-50	W	6-60	1.6	2.5,4.0	Flange (thread)
DN50	LWQ-50□	S1	6-65	W1	5-70	1.6	2.5,4.0	flange
		S2	10-100	W2	8-100
DN65	LWQ-65□	S	15-200	W	10-200	1.6	2.5,4.0	flange
DN80	LWQ-80□	S1	13-250	W	10-160	1.6	2.5,4.0	flange
		S2	20-400
DN100	LWQ-100□	S1	20-400	W	13-250	1.6	2.5	flange
		S2	32-650
DN125	LWQ-125□	S	20-800	W	20-800	1.6	2.5	flange
DN150	LWQ-150□	S1	32-650	W	80-1600	1.6	2.5	flange
		S2	50-1000		50-1200
DN200	LWQ-200□	S1	150-2000	W	50-1000	1.6	——	flange
		S2	130-2500
DN250	LWQ-250□	S1	130-2500	W	80-1600	1.6	——	flange
		S2	200-4000
DN300	LWQ-300□	S	200-4000	W1	130-2500	1.6	——	flange

DC-LWQLarge caliber natural gas turbine flowmeter3instrument selection

model									describe
LWQ—	□	/□	/□	/□	/□	/□	/□	/□	describe
Instrument Type	N								Sensor type:+12V or 24V power supply, output three wire pulse signal
	A								Transmitter type:+24V power supply, output two-wire 4-20mA
	B								Intelligent type: Powered by lithium batteries, no signal output displayed on site
	C								Intelligent type:+24V power supply, on-site display and output of two-wire 4-20mA
	D1								Fully intelligent: temperature and pressure compensation integrated, on-site display and remote signal transmission (square converter)
	D2								Fully intelligent: temperature and pressure compensation integrated, on-site display and remote signal transmission (circular converter)
Nominal Diameter		25							DN25mm
		40							DN40mm
		50							DN50mm
		65							DN65mm
		80							DN80mm
		100							DN100mm
		125							DN125mm
		150							DN150mm
		200							DN200mm
		250							DN250mm
		300							DN300mm
Range of measurement			W(x)						To expand the range, please refer to Table 2 on page Px for selection
Range of measurement			S(x)						Standard range, please refer to Table 2 on page Px for selection
Table body material				S					stainless steel
Table body material				L					aluminum alloy
Material of the movement					S				Anti corrosion ABS
Material of the movement					L				aluminum alloy
Explosion proof grade						N			Not explosion-proof
						E1			ExdIICT4
						E2			ExdIIBT6
Voltage resistance level							N		convention
Voltage resistance level							H（X）		High voltage reference table 2
accuracy class								N	Conventional type, level 1.5
accuracy class								G（X）	Customer accuracy level 1.0, 0.75, etc

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