Gas Turbine Flowmeter with High-Precision and High-Reliability

• Customization: Available
• After-sales Service: We Offer You a 1-5 Years Warranty on Our High-Qual
• Warranty: 12 Months
• Model NO.: HHLD
• Main Application: Water
• Size: DN50-100
• Sensor: Tube/Flange
• Application: Transportation
• Type: Vortex Flow Meter
• Measuring Media: Liquid
• Measuring Principle: Mechanics
• Measurement Object: Closed Pipeline
• Transport Package: Carton Box
• Specification: set
• Trademark: NO
• Origin: China
• Production Capacity: 100000
• Package Size: 100.00cm * 80.00cm * 120.00cm
• Package Gross Weight: 200.000kg

Product Description

Gas turbine flowmeter

I. Overview
The LWGQ gas turbine flowmeter is a high-precision, high-reliability gas precision metering that integrates temperature, pressure, flow sensors and intelligent flow totalizers, which is developed by itself by integrating theories of gas mechanics, fluid mechanics, and electromagnetics. The instrument has low and high pressure metering performance, multiple signal output methods and low sensitivity to fluid disturbances. It is suitable for the metering of natural gas, coal gas, liquefied gas, light hydrocarbon gas and other gases.
This product has been approved by the national explosion-proof product quality inspection department in accordance with GB3836.2000 "Electrical Equipment for Explosive Gas Atmosphere Part 1: General Requirements", GB3836.2-2000 "Electrical Equipment for Explosive Gas Atmosphere Part 2: Flameproof Type "d" And GB3836.4-2000 "Electrical Equipment for Explosive Gas Atmosphere Part 4: Intrinsically Safe Type "i"" standard inspection, and the explosion-proof marks are ExdBT6 (flameproof type), ExiaCT6 (intrinsically safe type). It is suitable for hazardous locations in zone 0 (intrinsically safe only) and zone 2 containing explosive gas mixtures of T1~T4 temperature groups of A, B, and C.
2. Product features
Special instrument for gas metering
Special instrument for oil and gas recovery system
High accuracy, generally up to ±1.5%R, ±1.0%R
Good repeatability, short-term repeatability can reach 0.05%-0.2%. It is precisely because of its good repeatability that it is the preferred flow meter in trade settlement;
The starting flow is low, and the low flow velocity, small measurement range is introduced.
It can detect the temperature, pressure and flow of the gas to be measured, can automatically track and compensate the flow, and display the cumulative volume of gas under standard conditions (Pb=101.325KPa, Tb=293.15K); real-time query of temperature, pressure, time, Numerical values such as dates.
Built-in pressure and temperature sensors, high safety performance, compact structure, beautiful appearance
The instrument has explosion-proof and protection functions, the explosion-proof mark is ExdBT6, ExiaCT4, and the protection grade is IP65
The system works with low power consumption, a 3V10AH lithium battery can be used continuously for more than 3 years
The meter coefficient and cumulative flow value will not be lost for ten years after power failure
Three, working principle
When the fluid flows into the flowmeter, it is rectified and accelerated by the special integrated rectifier at the air inlet. Because the turbine blades and the fluid flow are at a certain angle, the turbine generates a rotating torque. After overcoming the friction torque and the fluid resistance torque, the turbine starts Spin. Within a certain flow range, the angular velocity of the turbine rotation is proportional to the fluid volume flow. According to the principle of electromagnetic induction, the magnetic sensor is used to induce a pulse signal proportional to the fluid volume flow rate from the coaxial rotating signal wheel. The signal is amplified, filtered, and reshaped and enters the intelligent flow totalizer together with the temperature and pressure sensor signals. The micro-processing unit of the instrument performs arithmetic processing, and directly displays the volume flow and total volume of the gas on the LCD screen.
4. Basic parameters and technical performance
1. Basic parameters: (Table 1)

Instrument diameter (mm) and connection method	20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300 use flange connection (below 40, including 40 caliber can be used as thread)
Accuracy class	±1.5%R, ±1%R, ±0.75%R (specially required)
Turndown ratio	1:10:1:20:1:30
Instrument material	Meter body: 304 stainless steel; impeller: anti-corrosion ABS or high-quality aluminum gold; display: cast aluminum
Measured medium temperature (ºC)	-30ºC~+80ºC
Environmental conditions	Temperature: -20ºC~+60ºC, relative humidity 5%~90%, atmospheric pressure 86~106KPa
output signal	Sensor: pulse frequency signal, low level ≤0.8V, high level ≥8V Transmitter: two-wire system ~ 20mADC current signal
Power supply	Sensor: +12VDC, +24VDC (optional) Transmitter: +24VDC On-site display type: the meter comes with 3V lithium battery
Signal transmission line	STVPV3×0.3 (three-wire system), 2×0.3 (two-wire system)
Transmission distance	≤1000m
Signal line interface	Internal thread M20×1.5
Explosion-proof grade	ExdIIBT6, ExiaCT4
Protection level	IP65

 
2. Technical performance:

Model specification	Display and output mode	Power supply
LWGQ-N	Three-wire working condition pulse, low level ≤0.8V, high level ≥8V (no display on site)	External power supply DC12V-24V
LWGQ-A	Two-wire system, working condition 4~20mA (no display on site)	External power supply DC24V
LWGQ-B	With multi-point accuracy correction, the instantaneous flow and cumulative flow can be displayed simultaneously on the spot. The method is as follows: Q XXXX four-digit instantaneous flow (m3/h) XXXXXXXX eight-digit cumulative flow (m3) Note: The cumulative flow starts counting from 00.000000, Automatically expand the display accuracy and record it to 999999.99. The accumulated flow value can be cleared, and the meter coefficient and accumulated flow value will not be lost for ten years after power failure.	Built-in 3V10AH lithium battery power supply
LWGQ-C	On the basis of LWGQ-B (on-site display type), 4-20mA current output is added under working conditions	External power supply DC24V
LWGQ-D	On the basis of LWGQ-B (on-site display type), built-in temperature and pressure sensors are added to automatically compensate and correct the flow of different conditions. The temperature, pressure, battery power and other values can be queried at the same time. It can output standard condition 4-20mA current, working condition pulse signal, standard condition pulse signal, IC card signal, RS485 communication protocol.	3V10AH lithium battery or external power supply DC24V (signal output is required, external power supply is required)

 

 

What are the raw materials used?
The main materials used in  world-renowned electrical components. We can also make any custom design for you according to your needs.

How long does it usually take for me to receive the equipment?
Depends on whether you want to do customization your abrasive or not, and also depends on the speed of customs clearance and logistics, but we can guarantee to ship regular abrasive machine in less than 30 business days.

Any benefits for abrasive machine from China?
In a word, China has a much better industry chain. There may be manufacturers of abrasive and packaging in India, Vietnam and Malaysia, but HG-Abrasive can guarantee that our prices can be on par with theirs and our quality, service far exceeds your expectations.

When can I get an engineer from you?
Contact our sales staff when you have completed the preparation conditions (water, electricity, air supply, production materials). We will send an engineer to install your machine and train your staff to use it. Usually, when you are ready, you can contact our sales staff and cooperate with us to get a visa for the engineer, who will arrive within 15 days.

What about the details of the packaging?
To ensure the integrity and safety of product packaging, main products are packed in plastic film or export plywood boxes, and auxiliary products are packed in thick cartons.

Do you provide customized service?
We can design the machine according to your requirements (material, power, size, etc.). We will also provide you with expert guidance at the same time, based on our many years of experience in the industry.

How will my machine be installed once it arrives? How much does it cost?
We'll dispatch an engineer to your facility to assess the situation, install the machine and train your staff on how to operate it. The customer pays for round trip airfare, accommodation and USD100/day/person.

Are you a manufacturing or a trading company?
We are a factory, and we offer factory direct prices with excellent quality and worry-free service. Please come and see us here!

What is your guarantee or warranty if we buy your machine?
We offer you a 1-5 years warranty on our high-quality machines and lifetime technical support.