• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Henan, China (Mainland)
  • Brand Name: KD
  • Accuracy: ±0.3%/±0.5%
  • Norminal diameter(mm):: DN10~DN3000
  • Range ratio:: ≥10:1
  • Operation pressure:: ≤42MPa
  • Medium temperature:: ≤800℃

Packaging & Delivery

Packaging Details Plywood case with foam liner
Delivery Time 5-7 days after payment
Product Description

 

The balanced flow meter provides 10 times the accuracy of standard orifice-based fluid flow meters, 

resulting in significant cost-savings to industries such as gas and oil refinery. Further development 

made this invention a promising technology in many commercial applications.

The design of Balanced Flow Meter is based on Bernoulli Equation and Energy Conservation to realize 

Reynolds number matching and momentum balance. The technology is to optimize the design of a 

multi-hole throttling and flow rectifying element, using that as a DP sensor to 

utilize its excellent performance in process flow. The sizes and distribution of holes are based on 

Reynolds number matching, Momentum equilibrium and test results. Calculation of the holes (Function Holes) 

are also computed by QMC/MIMT. When fluid is running through function holes, 

the flow is rectified and eddy turbulence is minimized, forming an ideal flow field. The measurement element 

detects the value of stable D/P, and the signal is transit by secondary instruments. The D/P sensor, temperature 

conversion and flow display unit forms the D/P flow meter.

Traditional orifice meter has issues of large permanent pressure loss. The eddy turbulence consumed much potential, 

which caused reduction in accuracy and repeatability of measurement.

 

The Balanced Flow Meter minimizes eddy turbulence and greatly improved the accuracy. The measured value is very 

approaching real condition. This will greatly improve the process optimization. And operation cost is also reduced.

Main Features:

Advanced A+K balanced flow meter combines the innovative throttling technology with the world leading automatic instrument. 

As a real integrated flow meter, A+K balanced flow meter is aiming to provide excellent performance to users like high measurement 

accuracy, short straight pipe requirement, compact design, simple installation and commissioning, which helps you get a brand-new using experience.
Real Integrated Flow Meter
A+K balanced flow meter integrates balanced throttling element, pressure tapping device, tapping pipe, 3-valve manifold and transmitter into 

one single device, which reduce the installation dimensions, simplify installation and eliminate installation leakage points.
High Accuracy and High Repeatability
Excellent measurement accuracy and repeatability can be guaranteed through precision manufacturing process and advanced testing measures. 

Higher measurement accuracy can be realized through real flow calibration. 
Minimum Straight Pipe Requirement
Through balancing, adjusting and stabilizing flow field, the A+K balanced flow meter can reduce a lot of necessary straight pipe and thus save 

installation cost and is much easy for process pipeline layout.
Low Permanent Pressure Loss
The multi-hole and symmetrical design of A+K balanced flow meter effectively reduces vortex formation and turbulent skin friction, as well as 

kinetic energy loss, therefore reduces the permanent pressure loss and saves operation cost. 
Wide Measurement Range
Measurement range of balanced flow meter is improved vastly to 10:1 even to more with suitable parameters.

Wide Application
Can be applied to measure gas, fluid and steam. Effectively reduce rate of gasification when measure liquid gas, even can measure bidirectional flow. 
Long Life Circle
Throttling element of A+K balanced flow meter is design by wear-resistant technology, which makes its life cycle 5 times longer than traditional 

orifice plate. With reliable long life cycle, the measurement uncertainty and loss caused by wear and tear can be effectively reduced. 
Low Overall Investment
Breaking the traditional installation mode, A+K balanced flow meter realizes real integrated structure and simplified installation, which vastly reduce 

the cost of labor, design, procurement, installation and maintenance in the premise of function and performance guaranteed.

Easy Installation and Maintenance
All assembly and test have been accomplished in our factory before delivery, including data configuration according to the actual working condition. 

The balanced flow meter can be put into operation only after connecting with site process pipe and quick commissioning

 

 

Key Parameter:

 

    System accuracy:1%

 

    Measurement range:10:1

 

    Pipe size: 1/2~24”

 

    Pressure rating:Max CL600/PN100

 

    Temperature range: liquid and gas<230, steam650

 

    Application:gas, liquid and steam

 

Compensation: temperature and pressure

 

 

 

Technical Index:

 

Accuracy 
1%
Repeatability 
0.1%
Measurement Range
10:1 in normal, wider measuring range, please contact us for special design.

 

Size
Integrated type:1/2~24” (DN 15~600) 
Separate type:28~120”(DN650~3000
Measure Medium
Gas, liquid and steam
Power Supply
The meter normally needs 25V DC, operates from 10.5 to 45V DC without load. For Ex ia and other intrinsically safe approvals, the power supply must not exceed 30V DC.
Output Signal
AKR: Two-wire, 4 to 20mA with HART communication, current signal represents flow rate. 
AKM: Two-wire, 4 to 20mA with HART communication, current signal represents compensated flow rate. HART communication provides digital process variable. Particular 

protocol will be provided as per user requirements. 
Load Limitations
The formula below applies to output of 4-20mA with HART. A minimum resistance of 250Ω is required for HART communications.

 


Data of Throttling Element
Table 1:Data of Throttling Element

 


Norm. Dia.

Holes No.

β*

Element Thickness

1/2-1*

5

0.25~0.6

1/4-inch

1 1/4-24”

7~33

0.25~0.75

1/4~1/2-inch

 

*For balanced flow meters, β=d/D, where d is the equivalent diameter of multiple holes. The hole quantity, β and throttling element thickness are to be calculated and determined 

by manufacturer.

 

Connection Standards
Process connection complies with ANSI B16.5 or DIN flange standards. Other standards should be clarified in ordering information. 
Pressure Rating and Limit
Integrated type: Maximum Pressure <Class 600 or PN100, in accordance with the flange pressure standard in ANSI B16.5 or DIN EN 1092-1.
Separate type: Maximum Pressure <Class 2500 or PN250, in accordance with the flange pressure standard in ANSI B16.5 or DIN EN 1092-1.
Operation Temperature Range
Ambient temperature:-20~70 
Process temperature-40~200(medium), -40~121(transmitter
Display
Wide LCD screen. 
Protection Degree
IP65 or higher as per transmitter

 

Explosion-proof Certification
Ex ia IIC T6 and Ex d IIC T6(as per transmitter)

 

Process Temperature Input
For AKM, a 4-wire PT100 temperature sensor which is installed externally and used for measuring the medium temperature is required. Specific requirement is to 

be determined 

according to the temperature signal received by transmitter.

 

Electronic Housing Material 
Aluminum alloy with epoxy resin coating.


Packaging & Shipping

 

 

Our Services

 

Company Information

  Kaifeng kaide flow instrument CO., LTD., established in 2002, is a high-tech enterprise commit itself into the R&D and manufacture of flow instruments. Located at the base of Chinese flow instrument, Kaifeng city, we have full access to the most advanced technology and thus intend to deliver our high quality service internationally with great confidence.
    
    At present, we are mainly dealing in Electromagnetic Flowmeters, Vortex Flowmeters, Ultrasonic Heat Meter and some kinds of Throttling Devices. As we put a lot of concern into quality control, we have gained ISO9001:2000 QMS(Quality Management System) certification at a very early time. 
    
    Our commitment have won us a lot of reputable domestic customers from Chinese oil giant Zhongyuan Oil Field to famous research institute Wuhan University of Technology, they all established a pleasant long-term business relationship with us. We also expanded our services overseas, plenty of foreign customers visited our company to bond us in technology and business. We have been doing OEM for many domestic and foreign customers.
    
    Accuracy and attitude, access to customer. We believe, with high quality products and services, long-term relationships are always available between us and guests all over the world. If you are interested in any of our product, please do not hesitate to contact us, we will do our best to meet your requirement.

FAQ

 

Installation Position
Table 2: Recommended Installation


Direction

Gas

Liquid

Steam

Horizontal

Y

Y

Y

Vertical (↑)

Y

Y

N

Vertical (↓)

Y

N

N

Y:available  
N:not recommended
Straight Pipe Requirement
Table 3: Straight pipe requirement


Config Level

Upstream

Downstream

Noise Level

Best

5D

5D

Low

Normal

2D

2D

Middle

The best condition shall be applied when there is valve, Tee joint or several elbows before the flow meter.
Normal condition shall be applied when there are two or more 90° elbows within same plane before the flow meter.
For special conditions and designs, please contact us.

Materials
Material of Throttling Element
Table 4: Material of Throttling Element


Code

Material of Throttling Element

MB

A320-304

MC

A320-304L

MD

A320-316

ME

A320-316L

MG

A387-12

MK

HASTELLOY C276

MP

INCONEL625

MQ

MONEL400

M#

Other

Material of Meter Body and Flange
Table 5: Material of Meter Body and Flange


Code

Pipe and Flange Material

MA

A105

MB

A182-F304

MC

A182-F304L

MD

A182-F316

ME

A182-F316L

MG

A182-F12

MK

HASTELLOY C276

MP

INCONEL625

MQ

MONEL400

M#

Others

 

Structure:

Pipe Style Structure and Dimensions
Pipe Style AKM Integrated Flow Meter (Code AKRPP/AKMPP)
The main body of flow meter contains flanges to connect with the process pipeline. The flow meter is assembled with complete pressure tapping device and transmitter, which is easy for installation and maintenance. 
Meter Size: 1/2” to 24”
Typical Flange Standard: ANSI or DIN
Pressure Rating: Class 150-Class 600, PN10-PN100

Gas Measurement
Temperature limit:-40~200 

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview

Transactions

Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland) | Manufacturer
Transaction Level:
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $33,000
Learn More