DN25 High Accuracy Flanged Metal Tube Float Rotameter For Air Flow Measurement

Basic Information
Place of Origin: Sichuan, China (Mainland)
Brand Name: Vacorda
Model Number: LZ
Minimum Order Quantity: 1 Piece/Pieces
Price: Negotiable
Packaging Details: Standard wooden box
Supply Ability: 300 Piece/Pieces per Month
Product Name: Metal Tube Float Flowmeter Accuracy: Standard:1.5; Special: 1.0
Output: 4-20mA/Pulse Measuring Range: Water:1-200000L/H(20℃),Air: 0.03~6000m3/h (20℃, 0.1013MPa)
Diameter: DN15/25/40/50/80/100/150/200 Display: Direct Reading, LED/LCD
Power Supply: Standard: 24VDC; Battery Type:3.6V Lithium Battery(3 Years Lifetime) Material: 304,316,316L,321,304 Lined With PTFE,Hastelloy,Ti
Explosion-proof Grade: Exia II CT5Ga, Exd II BT6Gb Keyword: Metal Flow Meter Rotameter Used To Measure
Port: Shanghai/Shenzhen
High Light:

rotameter type flow meter


metal tube variable area flow meter

DN25 High Accuracy Flanged Metal Tube Float Flowmeter


Product Description

Metal tube float flowmeter consists of measuring pipe, float, indicator and process connection components with the characteristics of small size, wide measuring range, easy installation. In the industry area, it is widely used to measure flow of gas, liquid, and steam, especially suitable for mediums with low current velocity and low flow rate.


Product Parameters

Measuring range



Air: 0.03~6000m3/h (20°C, 0.1013MPa)

Measuring range proportion

Standard: 10:1

Accuracy class

Standard:1.5; Special: 1.0

Pressure class

Standard:DN15~DN504.0MPa; DN80~DN2001.6MPa


High pressure:DN15~DN5032MPa;DN80~DN20016MPa

Pressure loss


Medium temperature

Standard:-40°C~+100°C; PTFE:-50°C~+100°C


High pressure:110°C~+450°C

Medium viscosity

DN15:η<5mPa.s(F15.1~F15.3), η<30mPa.s(F15.4~F15.8)


DN25:η<250mPa.s; DN50~DN200:η<300mPa.s

Environment temperature

Remote type: -40°C~+85°C


On-the spot needle indicator: -40°C~+100°C

Connection type

Standard: DIN2501 standard flange; special: customize

Wiring connection

M20×1.5 female thread (1/2NPT female thread for Exd explosion-proof)

Power supply

Standard: 24VDC two-line 4~20mA(12VDC~32VDC)


Warning type:24VDC four-line 4~20mA(18VDC~18VDC)


AC type:85~265VAC 50HZ


Battery type:3.6V 7.5AH lithium battery(3 years lifetime)

Loading resistance feature

Two-line: max loading resistance=50×(voltage-12)Ω=600Ω 24V


Multi-line: max loading resistance 500Ω

Warning signal output

Reed pipe warning switch output,upper limit and lower limit flow warning

(contact capacity 1A 30VDC)


electric relay output(contact capacity 1A 30VDC, 0.25A 250VAC,0.5A 125VAC)

pulse output

Min space 50ms (max loading 100mA 30VDC, internal resistance 100Ω)

LCD display

Instantaneous flow display scope:0~50000


Total flow display scope: 0~99999999

Protection grade


Explosion-proof grade

Exia II CT5Ga   Exd II BT6Gb

Detailed Images

 DN25 High Accuracy Flanged Metal Tube Float Rotameter For Air Flow Measurement 0DN25 High Accuracy Flanged Metal Tube Float Rotameter For Air Flow Measurement 1DN25 High Accuracy Flanged Metal Tube Float Rotameter For Air Flow Measurement 2DN25 High Accuracy Flanged Metal Tube Float Rotameter For Air Flow Measurement 3

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Product Application

Company Information

Sichuan VACORDA Instruments Manufacturing Co., Ltd. is a professional production-manufacturing enterprise specialized in designing, producing and marketing of instruments and apparatuses. Our company has been established for 21 years since 1997 to grow up to be a team of high-quality, united, hard-working and truth-seeking characters. Solid foundation has been established.


Our Services

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Contact Details

WhatsApp : +8618981094129