Analysis of Flow Conversion of Metal Tube Float Flowmeter

The metal tube float flowmeter consists of a body spine and a watch pointer indicator. In addition to the local indication of instantaneous flow, it can also transmit a 4-20mA DC electric signal far away. The overall modular design makes it possible to quickly increase the field. Lower limit switch, flow accumulation function, each function unit board is an insert structure, with the features of simple, convenient, accurate positioning of replacement parts.

Why traffic conversion? In the production process, we calibrate the float flowmeter with water or air when calibrating the metal tube float flowmeter. Due to the different state of the medium and the timing of the actual application, according to the measurement principle, the flow value and the calibration time represented by the same position of the float in the measuring tube are different. In order to correctly select the specifications of the flow meter and use the instrument in the field, It is necessary to know the flow conversion relationship between them. In addition, the floater flowmeter industry standard stipulates that its accuracy is relative to the full scale. Therefore, when the user uses it, the common flow rate should be more than 60% to 80% of full scale. If it is used below 50%, the relative error will be As the accuracy increases, the accuracy will be affected. If the flow exceeds the full scale, it cannot be measured normally. Therefore, the proper instrument can only be selected after correct flow conversion. The basis for the conversion of the metal tube float flow meter is based on two main principles: the theoretical calculation formula of the float flow meter and the state equation of the ideal gas. ( a) is the theoretical calculation formula of the float flowmeter, and (b) is the state equation of the ideal gas. Float flowmeter calculation formula (1) Where: Q - volume flow a - flow coefficient Fk - the maximum diameter of the float and the same height between the cross-sectional area of ​​the cone tube g - gravitational acceleration Vf - float The volume ρf - the density of the float ρ - the density A of the fluid to be measured - the maximum cross-sectional area of ​​the float (in units of the formula cm, g, s) The equation for the state of the ideal gas (2) where: P0, P1—absolute pressure T0 in two states, T1—absolute temperature in two states V0, V1—volumes in two states The following two relations can be derived from the state equation of an ideal gas: a. (3) B Density Relation (4) In the formula: M - the mass of the medium ρ - the density of the medium Q - the flow of the medium

In addition , the industry standard for floater flowmeter stipulates that its accuracy is relative to full scale, so when the user uses it, its common flow rate is more reasonable when it reaches 60% to 80% of full scale, if it is used in full Below 50% of the range, the relative error will increase, and the accuracy will also be affected. If the flow exceeds full scale, it is impossible to measure normally. Therefore, only the correct flow conversion can select the appropriate instrument.




The machine is used for cutting long tubes for scaffold vertical pole, after cutting the pipe ends with a smooth blade, without burr, which reduces manual grinding. It can load and unload the tube automatically, so it reduces work intensity.

Description of ringlock scaffolding automatic Cutting Machine

 

Advantage: no burr after cutting

Guarantee time: 1 year

MOQ: 1 set

OEM service: offered

Payment: T/T. L/C

Delivery: Tianjin port

 

 

FAQ:

Q: Can you customize the machine according to our workpiece requirement?

A:Yes, we can design the machine after you give us the technical drawing.

Q: How about payment terms?

A: 30% TT as deposit, 70% TT paid before shipment or against B/L copy.

Q: Installation and commissioning?

A: We will send our engineer for installation and commissioning

Q: Do you have some videos to show how the machine works?

A: Yes, we can provide some videos for reference.

Ringlock Scaffolding Automatic Cutting Machine

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RENQIU JINSHI WELDING MACHINE CO., LTD , https://www.scaffoldwelder.com