Gold Member Since 2013
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Hebei Xukang Meter Manufacturing Co., Ltd.

Glass Rotameter, Flowmeter, Flow Meter manufacturer / supplier in China, offering Air Flow Meter with Alarm Switch Glass Rotameter Flowmeter-Flow Meter, Magnetic Floater Bi-Color Water Level Meter Controller-Tank Level Gauge with Switches, Float & Board Tank Gauge-Magnetic Level Gauge and so on.

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Supplier Homepage Product flow meter Rotameter Air Flow Meter with Alarm Switch Glass Rotameter Flowmeter-Flow Meter

Air Flow Meter with Alarm Switch Glass Rotameter Flowmeter-Flow Meter

FOB Price: US $10 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $10/ Piece
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Port: Tianjin, China
Production Capacity: 50000PCS/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Basic Info
  • Model NO.: LZS
  • Main Application: Water, Wastewater, Diesel Fuel, Nature Gas, Corrosive Liquid/Gas
  • Sensor: Tube/Flange
  • Type: Variable Area Flow Meter
  • Measuring Principle: Mechanics
  • Certification: CE, ISO
  • Protection Class: IP65
  • Transport Package: Wooden Case or Carton
  • Origin: China
  • Accuracy: ±0.2-0.5%
  • Size: DN10-50
  • Application: Environmental Protection
  • Measuring Media: Liquid
  • Measurement Object: Closed Pipeline
  • Working Temperature: 0 O C - +55 O C
  • Trademark: U-ideal
  • Specification: CE, SGS, ISO
  • HS Code: 90261000
Product Description
Working principle

Rotameter with alarm switch bistable magnetic excitation functions using the magnetron, magnetic float to achieve contacts with the opening and closing. Relays and other components to achieve with their own sound, light alarm needs.

Functions and Applications

BJ01: Limit alarm switch
BJ02: Lower limit alarm switch
BJ01 and BJ02 alarm switch can be at maximum, in the middle, the minimum value of any traffic signals. Alarm switch mounted on sliding rails, select the desired location. When the magnetic float switch position is reached or exceeded, i. e. A signal. At this point the internal contacts open or closed.

Technical parameters

Working pressure: ≤ DC100V or AC100V Working Current: ≤ 0.5A switch, constant current: ≤ DC0.3A interdiction Power: ≤ 10W
Insulation resistance> 10 Working temperature: 0 º C - +55 º C Protection class: IP65 lag (open or closed position) ≤ 4mm


1 installation, try to stay away from the external magnetic interference devices, such as large motors.
2 fluid medium can not contain ferromagnetic impurities
3 should be installed in the pipe vibration, in order to prevent malfunction of the switch contacts.

LZS-Series with alarm switch flowmeter installation dimensions
LZS-series plastic pipe flowmeter technology parameters with alarm switch

Glass rotameter-flow meter
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For liquid and gas

Low cost rotameter
Low flow rate flow meter

Visual flow meter
          Model    mm           Range    Accuracy  Media State
       Long Tube Type       Short Tube Type  ºC  MPa
      LZS-15      1510-100l/h 16-160l/h 25-250l/h 40-400l/h 60-600l/h5-50l/h 10-100l/h 16-160l/h 25-250l/h 40-400l/h 50-500l/h 60-600l/h 100-1000l/h±4%0-60≤0.6
       LZS-25         25100-1000l/h 160-1600l/h 250-2500l/h100-1000l/h 160-1600l/h 4-40l/min 250-2500l/h
     LZS-32       32 0.4-4m³/h 0.6-6 m³/h
         LZS-50              500.4-4 m³/h 0.6-6 m³/h 1-10 m³/h 1.6-16 m³/h1-10 m³/h 1.6-16 m³/h
      LZS-65         65   2.5-16 m³/h 5-25 m³/h 8-40 m³/h 12-60 m³/h
  LZS-Series with alarm switch flowmeter installation dimensions  
ModelSize Dg(mm)
Long Tube TypeShort Tube Type
LZS-1528020264520220264515tube20 25tube32 32tube40 50tube63 65tube75
LZS-32    2884049.574
LZS-65    4307588122
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