HTWF

HTWF

HTWF

Product catalog summary
Product Introduction
The tri-rotor flow meter is a volumetric device designed for continuous liquid flow measurement in closed pipelines. It features low friction, long service life, and adaptability to viscosity changes, making it suitable for crude and refined oil measurement. It supports on-site indication and remote measurement via explosion-proof pulse or 4-20mA transmitters for automatic control.

Working Principle
The flow meter consists of a cylindrical measurement chamber with three synchronously rotating rotors. The anti-leakage rotor gear has twice the teeth of the displacement rotor gears, resulting in a speed ratio of 1:2. Fluid entering the chamber is divided by the rotors, and the volume is measured by counting the rotations of the anti-leakage rotor, which outputs a standard pulse signal.

Specifications
  • Nominal Pressure: 1.6, 2.5, 4.0, 6.3, 10 MPa
  • Medium: Suitable for a wide range of liquids including crude oil, chemicals, and food products.
  • Temperature Range: -10℃ to 80℃, with special options for -40℃ to 80℃ and +60℃ to +350℃.
  • Medium Viscosity: Low (<2mPa.s), Normal (2-200 mPa.s), High (>2-350,000 mPa.s)
  • Diameter: Ranges from 15mm to 500mm
  • Main Material: Standard and special types available in steel, aluminum, copper, and stainless steel.
  • Output: Pulse signal, 4-20mA, HART protocol, MODBUS, RS232, RS485
  • Explosion-proof Grade: EXiaIIBT4
  • Protection Grade: IP65
  • Compensation Range: Mechanical temperature compensation from -30℃ to +120℃

Dimensions
Dimensions vary by model, with specific measurements provided for each diameter size from HTWF 20 to HTWF 100.
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Catalog excerpts

HTWF-2

HTWF Tri-rotor Flow Meter Product Introduction The tri-rotor flow meter is a volumetric flow meter, which can continuously measure the flow of liquid in a closed pipeline. The flow meter is mainly composed of two parts: measurement part and accumulation part. The flow meter has low friction, long service life, and strong adaptability to viscosity changes. It is widely used in the measurement of various crude oil and refined oil transit trade settlements. It can indicate on site, and can also be connected to an explosion-proof pulse or 4-20mA transmitter for remote measurement to realize automatic...

 Open the catalog to page 2
HTWF-3

prevention rotor is half of the speed of each displacement rotor. When the fluid flows into the measurement chamber, the three rotors rotate synchronously, and the fluid is divided into three parts by the three rotors. As the rotor rotates, the fluid in the measuring chamber moves simultaneously until it is discharged. Since the volume of the measuring chamber is known, the same volume of fluid is discharged every one rotation of the rotor, and the flow of fluid through the measuring chamber can be accurately measured by measuring the number of rotations of the leak-proof rotor. The rotation...

 Open the catalog to page 3
HTWF-4

Figure 4 Schematic diagram of rotor operation of tri-rotor flow meter Specification Parameter Medium viscosity Diameter Crude oil, asphalt, glue, ink, pulp, animal feed, cement mixture, liquefied petroleum gas, chemical process, toothpaste, petroleum, cosmetics, fuel oil, lubricating oil, aviation refueling, medicine, beverage, food, alcohol, liquefaction acid, alkali, salt, water, oil and other liquid media such as gas and paint -10℃~80℃ Special: -40℃~80℃ (with insulation jacket), +60℃~+350℃ (with extension bracket) Low viscosity type: <2mPa.s Normal viscosity type: 2~200 mPa.s High viscosity...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.