BCST ultrasonic gas flowmeter has lots of advantages compared with other gas flowmeter. They are mainly as below :
- Large Flow Range :1 to 100
- No pressure Drop
- Highest Accuracy :0.5%
- Oil-resistant finish: suitable for oil well
- High Pressure 0~42MPa
BCST Expert Ultrasonic Gas Flow Meter Supplier in China
BCST ultrasonic gas flow meter is a digital measuring tool without mechanical moving parts. It is characterized by using a direct reaction to flow adjustments and no pressure loss. They are appropriate for regulating processes, severe cumbering application, and measuring a wide variety of flammable and non-flammable gases. BCST ultrasonic flow meter measures flow without touching the contents of a pipe.
BCST ultrasonic fuel lines flow meter is appropriate for gasoline fuel line, biogas, recovering vapors, vent gas, waste gas, coal seam fuel line, shale gas, and setting apart the air from gases. This technology could be very accurate and impartial of the medium’s pressure, temperature, and viscosity. BCST’s long experience in production presents high-stop merchandise with the current generation with particular capabilities and high-overall performance capabilities.
BCST One-Stop Ultrasonic Gas Flow Meter Solution from China
Best Ultrasonic Gas Flow Meters Solution for Your Project
BCST has a vast stock of ultrasonic gas flow meters with fast delivery within seven working days. We will do our best to meet your project schedule. BCST has strict quality control, ISO certified company making sure to provide an excellent product to you. 100% inspection before shipping to ensure the product meets your requirements.
As an expert ultrasonic gas flow meter manufacturer in China, BCST supplies a complete package solution to various applications. Whether you’re an end-user or an engineering company, BCST will provide you with technical support. BCST ultrasonic gas flow meter is widely employed within the process industry.
We believe our experience will help you gain more business and benefits.
Other Related Gas Flow Meter
Why Purchase Ultrasonic Gas Flow Meters from BCST
- Introduction
- Features
- Technical Specification
- Flow Range
- Dimension
Natural gas flows in significant quantities every day through pipelines or into storage facilities, thus changing owners. Therefore, precise gas quantity measurement is of the utmost importance, as even tiny measurement errors could result in substantial economic loss. In addition, challenging ambient measurement conditions often play a crucial role, such as moisture, ice, cold, heat, and desert sand place significant demands on the instruments in the field. This is why an ultrasonic gas flow meter has high accurate and reliable requirements.
JCUG-Ultrasonic achieves both of these goals. It is ideal for both natural gas custody transfer and the exact measurement of process gases in the chemical industry. The meter is designed to measure volumetric flow rate and cumulative volume of natural gas underlying operation condition or standard condition for options when transported through circular pipelines in the forward and reverse directions. In addition, the meters can be used for gas metering in industrial and public utility companies, including custody transfer.
- Field-proven reliability for pipeline quality gas and dry gas
- No line obstructions
- No moving parts
- No flow calibration required
- No pressure loss
- Bi-directional capability
- Large turn-down ratio
- No lubrication or periodic maintenance
- Measurement is not affected by gas properties
- Powerful noise-reduction technology
- self-diagnostics
- Minimal installation requirement (10D upstream, 5D downstream)
Technical Specification
| Measurement Standard | Complied with AGA 9 and ISO 17089-1: 2010. |
| Buttons | Three-button operation; OLED 192*64 pixel backlit type |
| Communication interface | RS-485 (Modbus RTU） |
| Accuracy | ≤ ±0.5%; ±1% and ±1.5% under dry calibration |
| Repeatability | 0.1% of accraucy ±0.5%; 0.2% of accuracy ±1% ;0.3% of accuracy ±1.5% |
| Design | Wetted, Non-intrusive, inline type |
| Flanges rating | #150, #300,#600,#900,#1500 |
| Materials | Standard in SS304; SS316 for options |
Operation conditions |
|
| Size | 1 inch to 14inch( DN25mm to Dn400mm) |
| Medium temperature | ≤149 °F (65 °C) |
| Ambient temperature | -13 °F to 131 °F (-25 °C to +55 °C) |
| Max. Process pressure | 420bar (6090psig) |
| Measuring scope | 0.1m/s ~ 25m/s |
| Protection rating | IP65; IP67 for options |
Electrical characteristics |
|
| Input power | DC 12-32V |
| Power consumption | 5W(max) |
| Output | 4 ~ 20mA; pulse ( current output mode: Passive) |
| Communication interface | RS-485 (Modbus RTU） |
| Wire inlet specification | M20 x 1.5*2 Female ;1/2” NPT for options |
| Conformities | ISO 17089-1 and AGA-Report No. 9 |
| EMC regulation | IEC/EN 61326-1 Class A table2 |
| Hazardous Area approval | IECEX and ATEX approved II 2 G Ex DB ib IIB T4 Gb |
| Transducer paths | Up to 4 paths depend on sensor size |
|
Nominal size
|
Flow rate | Max. Velocity |
Transducer paths |
|||||
| m3/hr | ft3/hr | m/s | ft/s | |||||
| Min. | Max. | Min. | Max. | |||||
|
DN25 |
1” |
1 |
45 |
35 |
1589 |
25m/s |
82 |
1 path |
|
DN40 |
1-1/2” |
3 | 115 | 90 | 4061 |
25m/s |
82 |
2 paths |
|
DN50 |
2” |
4 | 180 | 141 | 6357 |
25m/s |
82 |
2 paths |
|
DN80 |
3” |
10 | 450 | 353 | 15892 |
25m/s |
82 |
2 paths |
|
DN100 |
4” |
16 | 700 | 549 | 24720 |
25m/s |
82 |
4 paths |
|
DN150 |
6” |
36 | 1600 | 1256 | 56504 |
25m/s |
82 |
4 paths |
|
DN200 |
8” |
63 | 2830 | 2221 | 99941 |
25m/s |
82 |
4 paths |
|
DN250 |
10” |
98 | 4420 | 3469 | 156091 |
25m/s |
82 |
4 paths |
|
DN300 |
12” |
141 | 6360 | 4991 | 224602 |
25m/s |
82 |
4 paths |
|
DN400 |
16” |
200 | 11000 | 7063 | 388462 |
25m/s |
82 |
4 paths |
| Process connection size | Length(L),
in mm |
Height(H),
in mm |
Width(B)
In mm |
Net Weight
bl, Kg |
|||
| ≤300#
(4 MPa) |
≥600#
(6.3 MPa) |
≤300#
(4 MPa) |
≥600#
(6.3 MPa) |
≤300#
(4 MPa) |
≥600#
(6.3 MPa) |
||
|
1” (Dn25mm) |
19.69
500 |
24.21
615 |
18.11
460 |
18.62
473 |
9.05
230 |
9.05
230 |
38
17.24 |
|
1 ½”(Dn40mm) |
19.69
500 |
24.41
620 |
18.50
470 |
18.90
480 |
10.63
270 |
10.63
270 |
47
21.32 |
|
2” (Dn50mm) |
19.69
500 |
24.41
620 |
18.89
480 |
19.21
488 |
11.02
280 |
11.02
280 |
53
24.04 |
|
3” (Dn80mm) |
23.62
600 |
29.13
740 |
12.20
310 |
20.39
518 |
12.20
310 |
12.20
310 |
66
30 |
|
4”(Dn100mm) |
23.62
600 |
23.62
600 |
20.47
520 |
20.78
528 |
12.60
320 |
12.60
320 |
77
35 |
|
6”(Dn150mm) |
23.62
600 |
23.62
600 |
22.83
580 |
23.74
603 |
14.17
360 |
14.17
360 |
103.62
49 |
|
8” (Dn200mm) |
27.56
700 |
27.56
700 |
24.80
630 |
25.59
650 |
16.14
410 |
16.14
410 |
154.32
70 |
|
10”(Dn250mm) |
27.56
700 |
27.56
700 |
26.77
680 |
27.16
690 |
18.11
460 |
18.11
460 |
202.83
92 |
|
12”(Dn300mm) |
31.5
800 |
31.5
800 |
28.74
730 |
29.05
738 |
18.90
480 |
18.90
480 |
258
117 |
|
14”(Dn400mm) |
39.37
1000 |
39.37
1000 |
33.34
847 |
33.34
847 |
26.70
685 |
26.70
685 |
352
160 |
- Dimension listed in the table refers to ASME and DIN series flanges, consult factory for dimensions of another standard.
- The specifications contained herein are subject to change without notice and any user of said specifications should verify from the manufacturer that the specifications are currently in effect, Otherwise, the manufacturer assumes no responsibility for the use of specifications that may have been changed and are no longer in effect.
Ultrasonic Gas Flowmeter – A Complete Guide
Within 22 years, BCST has received the authority to manufacture and distribute the ultrasonic gas flowmeter and many other types of flowmeters. These are highly useful in many industrial applications without depending on pressure and temperature. Customers across the world are ordering and recommending ultrasonic gas flowmeters by BCST. Because it always delivers highly accurate results.
Following are the answers in detail regarding the queries about the ultrasonic gas flowmeter:
What are the features of an ultrasonic gas flowmeter?
Following are the main features of an ultrasonic gas flowmeter:
- It is easy to configure an ultrasonic gas flowmeter making it suitable for the gas applications
- You can purchase the ultrasonic gas flowmeter with the meter body and multiple paths.
- Manufacturers of ultrasonic gas flowmeters do the fitting in the factory
- The installation of an ultrasonic gas flowmeter is easy. It requires a short time (just in 15minutes) for its structure.
- There are no moving parts, strainers, or filters in the ultrasonic gas flowmeter
- Even no drop of pressure in ultrasonic gas flowmeter
- The ultrasonic gas flowmeter doesn’t need calibration periodically
- There is no effect of contamination on the ultrasonic gas flowmeter
- The ultrasonic gas flowmeter gives the correct measurements even the flow is low
- Measuring the flowing of the gases is highly accurate by the ultrasonic gas flowmeter also when the level of impurities is high.
- The ultrasonic gas flowmeter is highly reliable.
- Ultrasonic technology with the transit-time in ultrasonic gas flowmeter transmits the ultrasound from the transducers. The difference in time helps determine the velocity and direction of the flow.
- It is straightforward to adapt the ultrasonic gas flowmeter to measure the flow and best gas applications.
What are the applications of an ultrasonic gas flowmeter?
The ultrasonic gas flowmeter is suitable for the below applications:
- Fuel gas
- Biogas
- For recovering vapors
- Vent gas
- Waste gas
- Coal gas
- Shale gas
- Separating the air from the gases
What is an ultrasonic gas flowmeter?
The ultrasonic gas flowmeter is the latest kind of gas flowmeter. The ultrasonic gas flowmeter offers several benefits. It includes comprehensive diameter and the range for the measurement, and the whole structure is simple and easy to install. There is no need to change the state of the flowing fluid without any element in the fluid. The ultrasonic gas flowmeter has received certification for hazardous and highly-strict environments. There is an integration for measuring the temperature and pressure in the ultrasonic gas flowmeter. There is no need to weld the bodies of the ultrasonic gas flowmeter to affect the flow dynamics. This helps in measuring high-level accuracy.
What is a clamp-on ultrasonic gas flowmeter?
Even though gas flowmeters for the industries are primarily valuable for liquid and water applications, it was acceptable before the clamp-on ultrasonic gas flowmeter technology. It didn’t apply to measuring mass flow theoretically because of the measuring limits. Ultrasonic transducers receive only 4.9% to 10.7% of transmitting sound energy. Now, the clamp-on ultrasonic gas flowmeter advancement helps measure gas flow, whether high or low. Moreover, it can also measure the transit times of the gases where the ratios of the signals to the noises are very low. There is no possibility to measure the compressed air, steam, natural gas, hydrogen, and many more using the clamp-on ultrasonic gas flowmeter. The signals produced by the clamp-on ultrasonic gas flowmeter are ten times stronger than the typical ultrasonic transducers. It can measure the gas flow easily and calculates the mass flow with the pressure transmitter’s help. The connection of the pressure transmitter is with the analog input. The ultrasonic gas flowmeter is extremely useful for almost every gas-flowing application clamp-on. You don’t need to make changes to the pipe, so there is a reduction in installation cost. You can also use the ultrasonic gas flowmeter for measuring the number of flow points in a single day. It is possible to install an ultrasonic gas flowmeter on any metal or plastic pipe.
What are the technical specifications of an ultrasonic gas flowmeter?
| Types of fluid | Conductive gases |
| Measurement of the flow | Relationship with the transmit time |
| Materials of the meter’s body | · Carbon steel with low temperature
· Stainless steel · Duplex stainless steel |
| Calibration of ultrasonic gas flowmeter | The ultrasonic gas flowmeter is air calibrated, and manufacturers provide certifications regarding the calibration. |
| Parameters for the measurements | Mass flow, actual flow, standard flow, total flow, and flow velocity. |
| Enclosing of the ultrasonic gas flowmeter | · Nema kind that 4times proof regarding the explosion and weather. The standard one is aluminum and stainless steel coating, an option. |
| Mounting of the electronics | · Remotely or locally |
| Power as input | · Basic supply: 85V to 240V
· Optional: 12V to 28V DC supply |
| Consumption of energy by ultrasonic gas flowmeter | · Maximum is 80W
|
| The range for processing the temperature | · -40 degrees Fahrenheit to 302 Fahrenheit (-40 degrees Celsius to 150 degrees Celsius). The range of -40 degrees Celsius t0 125 degrees is suitable when the sensor. |
| Keypad | · It is present in an ultrasonic gas flowmeter with six buttons to make all the functions work completely |
| Standard inputs and outputs | · Two 4-20mA outputà600 resistance load at maximum level
· Two 4-20mA inputàpressure and temperature
|
| Optional items | · Two outputs for frequencyàisolate visually, 3A current maximum, 100V DC maximum, and 1W DC supply to 10kHz.
· There are two relays for alarm: 120V AC supply, 24V DC at maximum level, and a DC power supply of 30W and 60VA at the highest level. |
| Digital connectivity | · The standard one is RS485
· Optional ones are Modbus, HART communicator, and the foundation field bus. |
How to bring improvement in the calibration of an ultrasonic gas flowmeter?
-
Making available in a better way:
- The calibration tasks need to be ordered a few months before. So, many laboratories raise flowing calibration as many ultrasonic gas flowmeters are working continuously.
-
Lowering the level of uncertainty:
- During the calibration in the laboratories, there is some uncertainty in measuring the flow. In addition, the tension in the calibration impacts the values of resultant repeatability and linearity. Therefore, the referencing instrument needs to be highly accurate while comparing the testing instrument to decrease the delay.
-
High level of pressure and temperature:
- The correction regarding the transit time measurements in the ultrasonic gas flowmeter needs to be correct regarding the delays. The delay in the transducer on the pressure and temperature depends on the design of the ultrasonic transducer. The producers of ultrasonic gas flowmeters use various methods for estimating the transducer’s delay. The factory’s calibrations or estimations compensate for its temperature and pressure.
What are the essential considerations while calibrating the ultrasonic gas flowmeter?
Before the installation process, the calibration of the ultrasonic gas flowmeter takes place as it is for verifying its process and correcting of offset flowmeter. Most of the ultrasonic gas flowmeters aren’t calibrated, but it is important to get assurance regarding the flowing of gas in it. Here is the discussion regarding the calibration of ultrasonic gas flowmeter:
-
Key points before the calibration:
- Acceptance of calibrating process and accepting of the requirements.
- It would help if you went through the techniques according to the flow range, points for verification, number of repetitions, and other project requirements.
- During the installation, inspection is essential. Ensure that the flow and upstreaming pipe conditioner is accurately installed according to the flow’s direction. It is better to take snaps as it is helpful for documentation purposes.
- The output signal needs to be similar while calibrating and installing the ultrasonic gas flowmeter. As the recommendation, it is better to use the pulse output because of its simple representation of the flowing rate.
-
Key points during the calibration:
- Stability is necessary during the processing conditions, including flow rate, temperature, and pressure. Therefore, these parameters are essential during the calibration of the ultrasonic gas flowmeter.
- Ensure there is no generation of the alarms in the ultrasonic gas flowmeter by the diagnostics system internally.
- Normal valves of the percentage of accepting the ultrasonic pulses, sound velocity, and path on every pair of transducers. Whenever there is normal flow, the sound velocity must be more than 0.5% among the pairs of transducers.
-
Critical points after the calibration:
- Keep checking the linearity and repeatability during the procedure of calibration.
- Enter all the accurate parameters in the ultrasonic gas flowmeter during the flow correction. Then, you can repeat the point as the verification after the proper entering in your documents.
- Print the setup report regarding all the parameters for documenting the configuration of the ultrasonic gas flowmeter after the calibration of the flow.
How to calibrate again or monitor the conditions in an ultrasonic gas flowmeter?
Some organizations mention the recalibration of ultrasonic gas flowmeters as their requirement. Typically, the calibration of the ultrasonic gas flowmeter is periodically after every five years. Therefore, the parameters to monitor the circumstances are necessary if there is a requirement of the flow calibration. The standard parameters according to the conditions are as follows:
- Automatic Gain Control: (AGC) The measuring of the Automatic Gain Control is according to the transducer and depending on the density of the gas. It is shown that the gas’s pressure or thickness is stable, so the value of Automatic Gain Control in the same transducer remains the same.
- Acoustic signal: The auditory signal display is the value in percentage. This shows how much of the acoustic signal is received by the single transducer. You can identify it by the unit of processing signals present in the ultrasonic gas flowmeter. If the accepting value starts decreasing, the transducer is not working correctly.
- The velocity profile: The normal velocity ratio shows the profile of gas flowing in the ultrasonic gas flowmeter. If changes are visible in the velocity’s profile, there is an issue in the single pair of transducers.
- The velocity of sound is an essential parameter that you need to monitor. Every path measures the velocity of sound. Apart from the changes in the conditions of the process, the path must keep measuring the similar velocity of sound until there is the flow in the ultrasonic gas flowmeter. The difference at Maximum between the highest and lowest reading of velocity of sound needs to be in 0.5%
What are the components of an ultrasonic gas flowmeter?
Below are the three main components of an ultrasonic gas flowmeter:
- Body of the meter: The meter has a middle portion to mount the ultrasonic transducer along the flanges at each end. The casting of the meter body is of one piece whose processing is on the highly accurate equipment to increase productivity. The inner diameter, surface design for the sealing, and essential dimensions of the flanges are according to the features of the critical code. The material for the metal body depends on the customer’s requirements. Most of them are present in carbon steel and stainless steel with low temperature and carbon steel. These meter bodies are in standard sizing.
- Ultrasonic transducers: You need to optimize the ultrasonic transducer according to the requirements of your applications. Designing a high-quality transducer helps deliver accurate and stable propagation time measurements and nanosecond accuracy. In addition, the design of the transducer is entirely safe.
- Signal processing unit: The signal processing unit has all the components working electrically and electronically to control the ultrasonic transducers. Its purpose is the generation of the signals and inspecting the receiving signals. In addition, it is for the calculation of the measuring valves. There are also interfaces in the Signal Processing Unit for communicating with the PC, or it can be the standard process for controlling the system. There is a panel in front of the Signal Processing Unit and an LCD of two lines. It displays the measuring current values, logbook information, and diagnostics. You can select the displaying values with the help of a magnetic pen, and there is no need to remove the cover of the window.
What are the steps of mounting the ultrasonic gas flowmeter in the pipe?
The arrow in the ultrasonic gas flowmeter shows the actual direction of the flow. As the recommendation, install the ultrasonic gas flowmeter according to the indication of the arrow, and it helps flow in the single direction applications. On the other hand, if the ultrasonic gas flowmeter is in multiple directions, the arrow indicates the direction towards the positive flow. Below are the steps for mounting the ultrasonic gas flowmeter in the pipe:
- With the help of lifting gear, place the ultrasonic gas flowmeter at the required place of the pipeline.
- After installing the flange bolts, one must examine the correct alignment and seating of the flange gasket.
- The arrangement of ultrasonic gas flowmeter must be so that offset needs to be in between the meter body, inner and outer side of the pipe.
- Insert and fasten all the left bolts and tight all the nuts in a cross shape. Then, apply the torque not less than a mention in the specifications of planning the project.
- Mount the sensing of the pressure between the tap of pressure and its transmitter
- Load the pipeline and keep checking the ultrasonic gas flowmeter that is installed. Also, inspect the connections of the pipelines regarding the leakages.
How is the maintenance of an ultrasonic gas flowmeter?
There are no moving parts in the ultrasonic gas flowmeter. The main components of ultrasonic gas flowmeter are ultrasonic transducers and meter bodies that contact the gas flow. The high-quality stainless steel and titanium ensure that the components above are resistant to corrosion. It also assures the installation and working of the ultrasonic gas flowmeter is according to appropriate specifications. Furthermore, it shows that ultrasonic gas flowmeter requires less maintenance. The maintenance of an ultrasonic gas flowmeter includes repeatedly checking for determining the credibility of the measuring valves and diagnosing all the results-producing by the system. It is a good option for creating the maintenance reports and filling them in regularly. Its creation is dependent on the comparative study of the data with time. It is also helpful whenever any issue arises. Four main points are part of daily checking, including:
- Comparison of measuring and theoretical Speed of Sound (SoS): Check the information displayed on the LCD to receive assurance regarding the correct working of the ultrasonic gas flowmeter. The critical parameter is the consistent readings between the measuring and theoretical Speed of Sound. It calculates the gas composition, pressure, temperature, and speed of Sound by the ultrasonic gas flowmeter.
- Checking the health of ultrasonic gas flowmeter: The ultrasonic gas flowmeter can monitor its health by warning the users and alarms by the system. The configuration of the outputs helps in providing the alarms and warnings. So, it is not essential to manually check the ultrasonic gas flowmeter’s health.
- Capacity or lifetime of the battery: Real-Time Clock (RTC) in the ultrasonic gas flowmeter operates by the battery. Most of the manufacturers mention the lifetime of the battery is 10 years. The leftover capacity of the battery is visible on the LCD on the first level of the menu. Is there no regular cycle for maintaining the ultrasonic gas flowmeter? There is a generation of alarm from the system when the battery life remains only 15%. The alarm is entirely forceful about the changing of the battery.
What are the techniques to install the ultrasonic gas flowmeter?
You can install the ultrasonic gas flowmeter by the following techniques:
- Mechanical installation: It works on the pipelines to install the ultrasonic gas flowmeter. It would help if you had some essential tools for installing the ultrasonic gas flowmeter. It includes gear/fork for lifting, lubricant for the bolt, spray for detecting the leakages, and flange gaskets.
- Electrical installation: During the installation of the ultrasonic gas flowmeter electrically, the work regarding the wiring, including the connection with the power supply and cables, is essential. Always put the cables lying on the trays for protection from any damage. Also, keep the connectivity out of the pipes, and they need to short in size as much as possible.
What are the benefits of using an ultrasonic gas flowmeter?
- The ultrasonic gas flowmeter is reliable enough to provide accurate measurements.
- There is no hurdle in the path of the flowing medium as ultrasonic gas flowmeter requires less maintenance.
- Along with reliability, the ultrasonic gas flowmeter is economical and delivers impressive performance.
- The accuracy rate of the ultrasonic gas flowmeter is very high even when the flow is low.
- The whole setup of the ultrasonic gas flowmeter is available according to the application. So, you can use it immediately after installing the meter body.
- There is also a possibility of measuring transit-time from an ultrasonic gas flowmeter. There are two ultrasonic transducers for generating the pulses. The difference in transit time for upstream and downstream is directly related to the gas flow velocity in the ultrasonic gas flowmeter.
- The design of the ultrasonic gas flowmeter is specifically for measuring the gases that have impurities. It has no impact on the flowing dynamics and provides accurate results.
Final thoughts:
Whether it is an ultrasonic gas flowmeter or any other type, BCST has gained popularity in every market. Not only easy to install but also no need to cut down your pipes. Our customer care agents are available for assistance and answering your replies. So contact us and place your order of ultrasonic gas flowmeter for your application.