Turbine Flowmeter
Datasheet
LWGY series turbine flow meters have the features: high accuracy, good repeatability,
convenient installation/maintenance, simple structure etc.
Liquid flows through the turbine housing causing an internal rotor to spin. As the
rotor spins, an electrical signal is generated in the pickup coil. This signal is converted
into engineering units (liters, cubic meters, gallons etc.) on the local display where is
applicable. Optional accessory modules can be used to export the signal to other
equipment.
Technical Specification
Performance
·Repeatability: ±0.2%
·Accuracy: Standard: ±1% of reading;
Optional: ±0.5% of reading
Wetted Components
·Housing: Standard - 304 Stainless Steel Optional - 316 Stainless Steel
·Bearings and Shaft: Tungsten Carbide
·Rotor: Standard - 2Cr13 Stainless Steel (Optional Alloy CD4Mcu)
·Retaining Rings: 316 Stainless Steel
Output Signal: (Where applicable)
·Sensor: Pulse signal (Low Level: ≤0.8V; High Level: ≥8V)
·Transmitter: 4 to 20 mA DC current signal
·Signal Transmission Distance: ≤1,000 m
Electrical Connections:
·Basic Type: Hausman Connector or three-core cable: ISO M20×1.5 Female
Protection Level:
·IP65
Flange Connections
·For standard product, the flange follows GB/T 9119-2000 (ISO 7005-1) RF (Raised
Face).
Operation Conditions
Ambient:
·Temperature: -10°C to +55°C
·Pressure: 86 to 106 KPa
·Relative Humidity:5% to 90%
Power Supply:
·Sensor: +12V DC (Optional: +24V DC)
·Transmitter: +24V DC
·Field Display Type B: Integral 3.2V Lithium Battery
(Others available on request)
·Field Display Type C: +24V DC
Fluid Temperature and Pressure:
·Temperature: -20°C to +110°C
·Pressure: Fluid pressure should be limited according to rating.
Measurable Flow Rate Range and Pressure Level:(Seetable1)
Table 1. Measurable Flow Rage Range and Pressure Rating
Standard Extended
Nominal Standard Pressure Customized
Flow Range Flow Range
Diameter (SFR) (EFR) Rating Pressure Rating
(mm) (in.) (m3/h) (m3/h) (MPa) (MPa) - Flange Fitting
4 0.15 0.04 to 0.25 0.04 to 0.4 Thread: 6.3 12, 16, 25
6 0.25 0.1 to 0.6 0.06 to 0.6 Thread: 6.3 12, 16, 25
10 0.4 0.2 to 1.2 0.15 to 1.5 Thread: 6.3 12, 16, 25
15 0.5 0.6 to 6 0.4 to 8 Thread: 6.3; Flange: 2.5 4.0, 6.3, 12, 16, 25
20 0.75 0.8 to 8 0.45 to 9 Thread: 6.3; Flange: 2.5 4.0, 6.3, 12, 16, 25
25 1 1 to 10 0.5 to 10 Thread: 6.3; Flange: 2.5 4.0, 6.3, 12, 16, 25
32 1.25 1.5 to 15 0.8 to 15 Thread: 6.3; Flange: 2.5 4.0, 6.3, 12, 16, 25
40 1.5 2 to 20 1 to 30 Thread: 6.3; Flange: 2.5 4.0, 6.3, 12, 16, 25
50 2 4 to 40 2 to 40 Flange: 2.5 4.0, 6.3, 12, 16, 25
65 2.5 7 to 70 4 to 70 Flange: 2.5 4.0, 6.3, 12, 16, 25
80 3 10 to 100 5 to 100 Flange: 2.5 4.0, 6.3, 12, 16, 25
100 4 20 to 200 10 to 200 Flange: 1.6 4.0, 6.3, 12, 16, 25
125 5 25 to 250 13 to 250 Flange: 1.6 2.5, 4.0, 6.3, 12, 16
150 6 30 to 300 15 to 300 Flange: 1.6 2.5, 4.0, 6.3, 12, 16
200 8 80 to 800 40 to 800 Flange: 1.6 2.5, 4.0, 6.3, 12, 16
Cautions For Installation
Mounting Positions
· Turbine flow meters should be installed at the place in compliance with the
requirements below:
◇Easy maintenance
◇No electromagnetic interface
◇No vibration
◇Away from heat source
Mounting Orientation
· All turbine flow meters are designed to measure flow in only one direction. The
direction is indicated by the arrow on the body.
Required Lengths of Straight Runs
·Flow altering device such as elbows, valves and reducers can affect accuracy. See
diagram 1 for typical flow meter system installation.
Diagram 1. Typical Flow Meter System Installation
Installation Dimensions
Thread or flange connection is used according to different flow models.
Thread connection dimensions
DN4-DN10 DN15-DN50
( straight section is included)
Flange connection
Sanitary Connection
China Singapore Germany Malaysia
China Headquarters Singapore Branch German Branch Malaysia Branch
Address: Göttinger Straße.59 Address: No 3, Jalan Emas
Address:No.452, No. 6 Street, Address: 2 Venture
30449 Hannover Niedersachsen Jaya 1, Taman Industries
Hangzhou Developmental Zone, Drive #11-30 Vision
Deutschland Emas jaya Tongkang
Zhejiaing, China Exchange Singapore
Pecah , Batu Pahat
