Gas Turbine Flow Meter, Nitrogen / Propane, DN20-DN300

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Model: RDDLZ-FLOW-LWQ
Weight: 1.00
SKU: RDDLZ-FLOW-LWQ

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RDDLZ-LWQ is a high-performance gas turbine flow meter for sale, widely used in measuring natural gas, city gas, propane, butane, air, nitrogen and other gases. The output mode covers RS485 and 4-20mA, and DN20 to DN300 diameter is optional. As the flow meter integrates temperature, pressure and flow sensors, online tracking detection of medium temperature and pressure and automatic compensation, compression factor correction algorithm, so it has excellent low and high pressure measurement performance.

Specification

Model	RDDLZ-LWQ
Nominal Diameter	DN20-DN300
Output Signal	4-20mA, RS485 output (wiring can be selected according to the site conditions)
Flow Range	2.5-6000m^₃/h
Measuring Medium	Nitrogen, propane, natural gas, air, ethane city gas, acetylene and other gases
Accuracy Class	1.5
Measurement Range Ratio	1:10~1:30
Power Supply	24VDC, battery powered
Installation	Flange piping type
Internal Power Supply	1 set of 3.6V lithium battery, when the voltage is lower than 3.0V, undervoltage indication appears
External Power Supply	24VDC±15%, ripple <5%, for 4-20mA output, RS485, etc.
Power Consumption	Internal power supply: Average power consumption 1mW, can be used continuously for more than two years
Power Consumption	External power supply: <2W
Standard Conditions	P=101.325kPa, T=293.15k
Ambient Temperature	-20°C~+60°C
Medium Temperature	-20°C~+60°C
Relative Humidity	5%RH~95%RH
Atmospheric Pressure	86kPa~106kPa

Flow Meter Flow Range

Model	Nominal Diameter	Flow Range	Maximum Pressure Loss	Starting Flow Rate	Mounting Type	Net Weight
LWQ-25	DN25	2.5~25m³/h	/	1m³/h	Flange	7kg
LWQ-25	DN25	4~40m³/h	/	2m³/h		7kg
LWQ-40	DN40	6~65m³/h	/	1.8m³/h		9kg
LWQ-50	DN50	6~65m³/h	0.7kPa	2.5m³/h		9.6kg
LWQ-50	DN50	10~150m³/h	0.7kPa	2.5m³/h		9.6kg
LWQ-80	DN80	13~250m³/h	0.3kPa	3m³/h		15.5kg
LWQ-80	DN80	20~400m³/h	0.8kPa	6m³/h		15.5kg
LWQ-100	DN100	20~400m³/h	0.2kPa	6m³/h		20kg
LWQ-100	DN100	36~650m³/h	0.5kPa	8m³/h		20kg
LWQ-150	DN150	80~1600m³/h	1.7kPa	15m³/h		43
LWQ-200	DN200	80~1600m³/h	0.2kPa	35m³/h		56kg
LWQ-200	DN200	130~2500m³/h	0.9kPa	35m³/h		56kg
LWQ-250	DN250	130~2500m³/h	0.2kPa	35m³/h		85kg
LWQ-250	DN250	200~4000m³/h	0.5kPa	50m³/h		85kg
LWQ-300	DN300	300~6000m³/h	1.5kPa	50m³/h		118kg

Note: Please explain your working conditions to us before placing an order, and we will recommend which flow range is suitable for each diameter according to the actual working conditions.

Dimension (unit: mm)

Nominal Diameter	L	D	K	n	d	Bolt Specifications	General Pressure Resistance
DN25	200	115	85	4	∅14	M12×50	4MPa
DN40	200	150	110	4	∅18	M16×55	4MPa
DN50	200	165	125	4	∅18	M16×60	4MPa
DN80	240	200	160	8	∅18	M16×70	1.6MPa
DN100	300	220	180	8	∅18	M16×80	1.6MPa
DN150	450	285	240	8	∅22	M20×80	1.6MPa
DN200	450	320	275	8	∅22	M20×90	1.6MPa
DN250	450	355	312	12	∅26	M24×90	1.6MPa
DN300	450	410	362	12	∅26	M24×100	1.6MPa

Detail

Electrical Interface: Stainless steel electrical interface, effectively preventing water and dust from entering, prolonging the service life.
Intelligent LCD Head: Large LCD display temperature, pressure, instantaneous flow, cumulative flow and other data in hand.
Aviation Aluminum Impeller: Hard oxidized aviation aluminum impeller, unique reinforcing rib technology, not easy to jam, strong and sturdy.
High-precision Bearings: Fully enclosed bearing structure effectively protects the impeller and flow guide, longer life, greatly reducing the accumulation of impurities, maintenance is more convenient.

Flow Meter Showcase

Application

Tips: Gas turbine flow meter signal output description

4~20mA standard analog signal output: 4~20mA analog signal corresponds to the standard volume flow rate, the range is set by the upper and lower limits of the standard flow rate, the lower limit corresponds to 4mA, the upper limit corresponds to 20mA, the transmission distance is ≤200m, the wiring is two-wire or three-wire system, the power supply voltage is 24VDC.

RS-485 interface signal output: MODBUS protocol RTU mode, half duplex mode, baud rate 1200~9600 optional.
RS-485 communication can realize the following functions.

Directly networked with the host computer, it can remotely transmit the temperature, pressure, standard volume flow rate and total volume of the measured medium, total volume of the working condition, the relevant parameters of the instrument, fault code, operating status and real-time data.
Used in conjunction with a special signal acquisition instrument, it can form a remote data acquisition and monitoring system through GPRS/CDMA, Internet and telephone networks. Through the network for data transmission, any flowmeter in the network to read the historical data, fault status, and can remotely set the relevant parameters of various flowmeters.
With PLC, RTU supporting can be composed of SCADA system and DCS system.

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