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Oval Gear Flow Meter

Oval Gear Flow Meter

  • The oval gear flowmeter (also known as displacement flowmeter, gear flowmeter) is a type of volumetric flowmeter, and is a type of flow meter with higher accuracy. It uses mechanical measuring elements to continuously divide the fluid into a single known volume portion, and measures the total flow volume according to the number of times the metering chamber is filled and discharged repeatedly. The oval gear flowmeter can be made of different materials (cast iron, cast steel, 304 stainless steel, 316 stainless steel), and is suitable for flow measurement in chemical, petroleum, pharmaceutical, electric power, metallurgy, food and other industrial sectors.

Whatspp：+86 18912600763
E-Mail：sales@beitemeter.com

Einzelheiten

Produkt-Einführung

The flowmeter consists of a metering box and a pair of oval gears installed in the metering box, which form a sealed crescent-shaped cavity with the upper and lower covers (due to the rotation of the gears, it is not relatively sealed) as the calculation unit of one displacement.

When the measured liquid enters the flowmeter through the pipeline, the pressure difference generated at the inlet and outlet drives a pair of gears to rotate continuously, and continuously transports the liquid measured by the crescent-shaped cavity to the outlet. The product of the number of revolutions of the oval gear and four times the displacement each time is the total amount of the measured liquid flow (see the figure for the principle). The flowmeter is mainly composed of a housing, a counter, an oval gear and a coupling (divided into magnetic couplings and axial couplings).

Produktmerkmale

1. Ganzmetall-Struktur-Design: Die robuste Ganzmetallkonstruktion ist für die Messung von Gasen und Flüssigkeiten in verschiedenen Branchen geeignet.

2. Case structure design: The new case structure design can be applied to high temperature environment without adding parts.

3. Accurate measurement: The specially designed flange connects the metal pipe, with a wider measurement range and better measurement linearity.

4. Verschiedene Anschlussmethoden: Verschiedene Prozessanschlussmethoden wie Flansch, Klemme, Gewinde, etc. können angeboten werden, die für die meisten Anforderungen der Fabrik geeignet sind.

5. Optional materials for the measurement part: stainless steel, titanium, Hastelloy, PTFE, FEP and other materials.

6. Safety certification: Support non-standard customization, and obtain CE, SIL isolation and explosion-proof certificates.

 

Technische Parameter

Main component materials and nominal pressure

Model Housing Front cover Rear cover Cover Oval gear Shaft Bushing Nominal pressure
LC-A Cast iron Cast iron Cast iron Cast iron Stainless steel Oil-bearing bronze

Rolling bearing

 1.6 (MPa)
Engineering materials
Remarks Cast iron materials cannot work in an environment below -10℃, otherwise they are easily damaged.

 

1. Accuracy level 0.5, 0.2 (general medium temperature is -10℃~+60℃).  

2. Use medium temperature: (ambient temperature can be -10℃~+60℃).

   -10℃~+60℃; under high temperature adjustment, adding high temperature heat sink can reach 60℃~200℃.

3. Remote display on-site explosion-proof level: ExiaⅡCT5, dⅡBT4.

4. The flow range is as follows: Unit: m3/h


Model

Nominal
Diameter

Viscosity of the liquid being measured mPa.s
0.3~0.8 0.8-2 2-200 200-1000

1000-2000  
LC-10
 10 0.2-0.5 0.12-0.5
 0.08-0.5
 0.08-0.5
 0.05-0.5 0.06-0.3
 0.03-0.3 0.03-0.2
LC-15
 15 0.75-1.5 0.5-1.5 0.3-1.5 0.3-1.5 0.15-1.5

0.3-3

 0.2-1.0 0.1-1.05 0.07-0.75
LC-20
 20 1.5-3 1-3 0.5-3 0.5-3 0.3-3

1.5-15

 0.4-2.1 0.2-2.1 0.15-1.5
LC-25
 25 3-6 2-6 1-6 1-6 0.6-6

1.56-15

 0.8-4.2 0.4-4.2 0.3-3
LC-40
 40 7.5-15 5-15 2.5-15 2.5-15 1.5-15 2.1-10.5 1.0-10.5 0.7-7.5
LC-50（Ⅱ）
 50 8-24 8-24 4.8-24 4.8-24 2.4-24 2.4-16.8 1.6-16.8 1.2-12
LC- 65（Ⅱ）
 65 20-40 15-40 8-40 8-40 4-40 5.6-28 2.8-28

2-20
LC-80（Ⅱ）
 80 30-60 20-60 12-60 12-60 6-60 8.4-42 4.2-42 3-30
LC-100

（Ⅱ）

（Ⅱ）（Ⅱ）

（Ⅱ）（Ⅱ）

 100 50-100 34-100 20-100 20-100 10-100 14-70 6-70 5-50
LC-150 150 95-190 64-190 38-190 38-190 19-190 26.6-133 13.3-133 9.5-95
LC-200 200 170-340 114-340 56-340 56-340 34-340 47.6-238 23.8-238

17-170
Accuracy Grade System 0.5 0.2 0.5 0.2 0.5 0.2 0.5

0.5

Note: When the temperature of the measured liquid is higher than 80℃, the upper limit flow rate of the flow meter is 90% of the original upper limit flow rate of the flow meter, and the lower limit flow rate should be 120% of the original lower limit flow rate of the flow meter. When the viscosity of the measured liquid is higher than 2000mPa.s, please consult and place an order.

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