I. Brief Introduction:

This photo introduces:Multiple horizontal T-type metal tube float flowmetersThe fluid inlet and outlet directions are left-in-right-out. The sensor material is standard 304 stainless steel (optional 316 or 316L). The indicator in the photo is powered by 24VDC, with an output of 4-20mA, and has intrinsically safe explosion-proof rating. HART protocol is available upon request. For a horizontal flow meter with an orifice size ≤DN50, a T-type structure is commonly used. The indicator can be selected in various types based on 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 compact size, wide measurement range, and ease of use. It is suitable for measuring the flow of liquids, gases, and steam, particularly for low flow rates and low volumes. Over the years, the metal tube float rotameter has been widely applied in industries such as petrochemicals, steel, power, metallurgy, light industry, food, pharmaceuticals, and water treatment, thanks to its excellent performance, reliability, and favorable performance-to-price ratio.

Flowmeter Type:

TF SeriesMetal Tube FloatThe flow meter consists 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 to meet on-site requirements.

The TF series metal tube float flowmeters are divided into five types based on the direction of the fluid inlet and outlet: vertical type, horizontal type (further divided into horizontal T-type and horizontal spring type), bottom inlet and side outlet type, side inlet and side outlet type, and side inlet and top outlet type. Each type also includes standard, high-temperature, and jacketed versions.

Horizontal Mount TypeFlow meterFor diameters less than or equal to DN50, choose T-type structures; for diameters greater than DN50, opt for spring structures.

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

Indicator Selection:

Users can select from on-site display, battery-powered, wireless remote, intrinsically safe, explosion-proof, or HART-compliant models. Detailed descriptions of each indicator's functions 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 unit; scale disk can be set to 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 relevant parameters. The battery can last for 6 months. Replace the battery when the T character appears on the display (battery model: ER26500, 3.6V, 7.5Ah, -55℃~85℃).

M4 model

Electrical remote transmission, inherently safe design, explosion-proof marking ExdⅡCT6, optional HART protocol function. DC24V power supply, on-site pointer indicates instantaneous flow rate and digital display of instantaneous and accumulated flow rates. Two-wire system with 4~20mA output. The panel features 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 function. 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-flow and small-diameter medium flow measurement ◆　Reliable operation, minimal maintenance, long lifespan

◆ Not strict requirements for straight sections ◆ Wide range ratio of 10:1

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

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

◆ Suitable for flammable, explosive and hazardous environments ◆ Available in DC power or battery-powered options

◆ 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 L/h; Gas: 0.05～3,000 m³/h (see the flow chart on page 11 for details)

Scale ratio 10:1, 20:1 (special)

Accuracy 1.5 grade, 1.0 grade (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), with optional HART protocol

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

Cable Interface M20x1.5

Shell Protection IP65

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

◆ Pressure Loss, see flow chart

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

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

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

Magnetic Filter:

If ferromagnetic particles are present in the medium, a magnetic filter should be installed before the flow meter inlet.