Brief Introduction:

This photo showcasesExplosion-proof metallic tube float flow meterThe sensor in the photo features a vertical downward entry and upward exit design. The standard sensor material is 304 stainless steel (optional materials include 316, 316L, and fluoro-lined options). It is powered by 24VDC and outputs 4-20mA. Users can choose an explosion-proof level ExdIICT6 and options like HART protocol. The sensor structure can be selected from various types based on the actual site conditions.

Overview:

    Metal Tube Float FlowmeterThe (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, especially for low flow rates and low volumes. Over the years, the metal tube float flowmeter has been widely applied 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-price ratio.

Flowmeter Type:

TF SeriesMetal Tube FloatThe flow meter consists of a measuring tube (sensor) and an indicator (electronic converter). By selecting different types of measuring tubes and indicators, various complete units can be assembled to meet on-site requirements.

The TF series metal tube float flowmeters are divided into five types based on the direction of the fluid's 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 offers standard, high-temperature, and jacketed versions, among others.

Horizontal Mount TypeFlow meterFor diameters less than or equal to DN50, choose T-type structures; for diameters greater than DN50, opt for 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; thread and clamp connection methods are also available.

Indicator Selection:

Users can select from on-site display models, battery-powered models, electrical remote transmission models, intrinsically safe models, explosion-proof models, or HART protocol-enabled models according to the actual needs on site. 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 dial available for instantaneous flow value 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, local buttons for viewing and modifying parameters. Battery can last for 6 months; replace battery when "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 mark ExdⅡCT6, optional HART protocol function. Powered by DC24V,现场indicating pointer for instantaneous flow rate and digital display for both instantaneous and accumulated flow rates. Two-wire system with 4-20mA output. The panel features 4 buttons for viewing and modifying internal parameters. Detailed instructions on page 18.

M5 Model

Electrical remote transmission, explosion-proof design, with explosion-proof mark ExdⅡCT6, 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.

Feature Highlights:

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

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

◆ Dual-line LCD display, instantaneous/accumulated flow rate display at the site ◆ The indicator features a keyboard for easy operation and settings

◆ Full metal structure, suitable for high temperature, high pressure, and highly 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:

◆ Flow Meter Sizes: DN15, DN25, DN50, DN80, DN100, DN150 (Other sizes upon negotiation with manufacturer)

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

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

Accuracy 1.5 grade, 1.0 grade (special)

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

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 system), with optional HART protocol

Output Load 500Ω (when powered by 24V)

◆ Environmental Temperature: Field 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 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 the medium contains ferromagnetic particles, a magnetic filter should be installed before the flowmeter's inlet.