I. Brief Introduction:

This photo showcases:Multiple horizontal T-type metal tube float flowmetersThe fluid inlet and outlet directions are left-in, right-out. The standard sensor material is 304 stainless steel (optional 316 or 316L). The indicator in the photo is powered by 24VDC, with an output of 4-20mA, intrinsically safe explosion-proof rating, and is available with HART protocol. For horizontal flowmeters with a diameter of ≤DN50, a T-type structure is commonly used. The indicator can be selected from various other types based on site requirements.

Overview:

    Metal Tube Float Flow MeterThe metal tube rotameter is a commonly used variable area flow measurement instrument in industrial automation process control. It features a small size, wide detection range, and ease of use. It can be used to measure the flow of liquids, gases, and steam, particularly suitable for low flow rate and low volume measurements. Over the years, the metal tube float flowmeter has gained widespread application in industries such as petrochemicals, steel, electricity, metallurgy, light industry, food, pharmaceuticals, and water treatment, due to its excellent performance, reliability, and favorable performance-to-cost ratio.

Flowmeter Type:

TF SeriesMetal Tube FloatThe flow meter is composed of a measuring tube (sensor) and an indicator (electronic converter). Different types of measuring tubes and indicators can be selected to assemble into various whole machines, catering to on-site requirements.

The TF series metal tube float flowmeters are divided into 5 types based on the direction of fluid entry and exit: vertical type, horizontal type (including horizontal T type and horizontal spring type), bottom entry-side exit type, side entry-side exit type, and side entry-top exit type. Each type also has standard, high-temperature, and jacketed models, among others.

Horizontal Installation TypeFlow meterFor diameters less than or equal to DN50, use T-type structures; for diameters greater than DN50, use spring-loaded structures.

Flowmeter Connection Specifications: The TF series metal tube float flowmeter standard model adopts the GB/T9119-2000 flange standard, and the flange standard can be customized according to customer requirements; threaded and clamp connection methods are also available.

Indicator Selection:

Users can select on-site display, battery-powered, wired remote, intrinsically safe, explosion-proof, or HART protocol-enabled models based on actual site requirements. Detailed functional descriptions of various indicators are listed below.

Indicator Type

Instrument Function Description

M1 Model

Local pointer indicates flow rate; no power required; no 4~20mA remote transmission; optional flow alarm device; scale disk available with either instantaneous flow rate or percentage scale value.

M3 Model

Local digital display, battery-powered, no 4-20mA remote transmission, non-explosion-proof. LCD shows instantaneous and accumulated flow rates; on-site buttons are used to view and modify parameters. The battery can last for 6 months; replace the battery when the display shows the "T" character (battery model: ER26500, 3.6V, 7.5Ah, -55℃~85℃).

M4 model

Electrical remote transmission, intrinsic safety design, explosion-proof marking ExdⅡCT6, optional HART protocol functionality. Powered by DC24V, featuring现场 pointer indicating instantaneous flow and digital display of instantaneous and accumulated flow. Two-wire system with 4-20mA output. The panel is equipped with 4 buttons for viewing and modifying internal parameters. Detailed usage on page 18.

M5 model

Electrical remote transmission, explosion-proof design with ExdⅡCT6 marking, optional HART protocol functionality. Powered by DC24V, featuring on-site pointer indicating instantaneous flow rate and digital display for both instantaneous and cumulative flow rates. Two-wire system with 4-20mA output. The panel is equipped with 4 buttons for viewing and modifying internal parameters.

Features:

◆ Suitable for low-pressure and low-flow medium flow measurement ◆ Reliable operation, minimal maintenance, long service life

◆ Not stringent requirements for straight sections ◆ Wide range ratio up to 10:1

◆ Dual-line LCD display, instantaneous/accumulated flow rate displayed on-site ◆ Keyboard on the indicator for easy operation and settings

◆ Full metal structure, suitable for high temperature, high pressure, and strong corrosive media ◆ Non-contact magnetic coupling transmission

◆　Suitable for flammable and explosive hazardous environments ◆　Optional DC power supply or battery-powered operation

◆ Data recovery, data backup, and power failure protection features ◆ Multi-parameter calibration function

Technical Specifications:

◆ Flowmeter sizes: DN15, DN25, DN50, DN80, DN100, DN150 (other sizes upon manufacturer consultation)

Flow Range: Liquid: 1.0～150,000 liters/hour; Gas: 0.05～3,000 cubic meters/hour (see page 11 for detailed flow chart)

Range Ratio: 10:1, 20:1 (Special)

◆ Accuracy: 1.5 Class, 1.0 Class (Special)

◆ Pressure Class: DN15, DN25, DN50: 4.0MPa (max 20MPa)

DN80, DN100, DN150: 1.6 MPa (Max: DN80: 10 MPa; DN100: 6.4 MPa; DN150: 4.0 MPa)

Medium Temperature Standard: -30℃ to +120℃, High Temperature: 120℃ to 350℃

Power Supply: 24VDC (12~36VDC)

Output Signal 4-20 mA DC (two-wire), HART protocol optional

Output Load 500Ω (when powered by 24V)

◆ Environmental Temperature: Local Type: -40℃ to 120℃; Remote Type: -30℃ to 60℃

Storage Conditions: Temperature: -40℃ to 85℃; Humidity: ≤85%

◆ Connection Type: Flanged connection, Flange Standard: GB/T9119-2000; Users may (other connection types can be negotiated with the manufacturer)

Cable Interface M20x1.5

◆ Enclosure Protection IP65

◆ Explosion-proof Mark: Intrinsically Safe Type: ExiaIICT6, Flameproof Type: ExdIICT6

◆ Pressure Loss, see flow table

◆ Medium Viscosity: DN15: η＜5 mPa.s, DN25: η＜250 mPa.s, DN50～DN150: η＜300 mPa.s

◆ Fluid-Receiving Material R1: 304, 1Cr18Ni9Ti; Ro: 316, 0Cr18Ni12Mo2Ti

RL: 316L, 00Cr17Ni14Mo2Ti; Ti: Titanium alloy; Rp: Polytetrafluoroethylene lining.

Magnetic Filter:

If the medium contains ferromagnetic particles, a magnetic filter should be installed before the flowmeter's inlet.