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Industry Information
Plastic tube float flowmeter can be classified differently from different angles
2012-2-24 14:35:58


锥管等主部件均由AS、ABS塑料制成,有较好的耐腐性能,产品还具有结构合理、体积小、重量轻、锥管不易破碎等特点,可广泛应用于化工、环保、食品等工业部门。 The main components such as the plastic tube float flowmeter cone tube are made of AS, ABS plastic, which has good corrosion resistance. The product also has reasonable structure, small size, light weight, and the cone tube is not easy to be broken. It can be widely used in Chemical, environmental protection, food and other industrial sectors.

Principle and structure The main measuring element of a flow meter is a conical plastic pipe with a small end facing downward and a large end facing upward, and a float that can move up and down inside. When the fluid flows through the conical plastic tube from bottom to top, a pressure difference is generated between the upper and lower parts of the float, and the float rises under the action of this differential pressure. When the force that causes the float to rise is equal to the combined forces of gravity, buoyancy, and viscous force, the float is in an equilibrium position. Therefore, there is a certain proportional relationship between the flow rate of the fluid flowing through the flowmeter and the rising height of the float, that is, the flow area of the flowmeter. The position height of the float can be used as a flow measurement. Float flowmeter can be classified from different angles

价格,塑料管浮子流量计生产厂家_ Plastic tube float flow meter price, plastic tube float flow meter manufacturer_
Flow meters are mainly used in chemical, petroleum, light industry, medicine, fertilizer, chemical fiber, food, dye, environmental protection and scientific research departments to measure the flow rate of single-phase non-pulsating (liquid or gas) fluids. Anti-corrosive glass rotor flowmeter is mainly used to detect the flow of corrosive liquids and gaseous media, such as strong acids (except hydrofluoric acid), strong bases, oxidants, strong oxidizing acids, organic solvents and other corrosive gases or liquids Flow detection of media.


Rotameter is a common instrument used to measure the instantaneous flow of fluid (liquid rest, gas). It is widely used in chemical, food, environmental protection, metallurgy, machinery, pharmaceutical and other production units and scientific research departments. It has the following characteristics:
1. High accuracy in measuring instantaneous flow;
2. The measurement range can reach 1:10;
3. Low pressure loss;
4. Simple structure, convenient operation and low price;
5. Suitable for the measurement of corrosive fluids.

The vertical transparent cone tube is equipped with a float (rotor) that can move up and down. When the liquid flows through the cone tube from bottom to top, it is throttled by the float, creating a differential pressure between the upstream and downstream of the float. Down. When the force that causes the float to rise is equal to the combined forces of the gravity, float, and viscous force on the float, the float is in an equilibrium position, so the fluid flow through the flowmeter and the rise height of the float There is a certain proportional relationship between the circulation areas. The position height of the float can be used as a flow measurement. The relationship is as follows:
In volume flow formula: а—flow coefficient
ε—expansion coefficient △ F—the flow area is the area of the ring gap between the cone and the float
Vt—Float volume
ρf—the density of the float material
ρ—Density of measured flow
F1—The cross-sectional area at the working diameter of the float

分为基型和防腐型两大类,它们通常由锥管、浮子、与管路连接的上、下基座、密封胶环、防护罩等配件组成,根据通径及流量大小,分为三种结构形式。 The plastic rotor flowmeters produced by our factory are divided into two types: basic and anticorrosive. The diameter and flow size are divided into three structural forms.
1, N3, DN4, DN6, DN10 and other four diameter and pipe connection types due to small flow rate are divided into two types of hose connection and screw connection. Its structure and connection
1. Outflow mouth;
2. Base;
3. Press the cap tightly;
4. Conical glass tube;
5. Organic cover;
6. Support plate;
7. Float;
8. Press down the cap;
9. Lower base;
10. Flow into the mouth;
11. Needle valve.

Caliber (mm) Dimensions (mm)
ABCDE
3 115 140 Ф6 22 * 26 (front)
4 170 208 238 Ф9 37.5 * 33 (front)
6 170 208 238 Ф9 37.5 * 33 (front)
10 170 208 238 Ф12 37.5 * 33 (front)
2. DN15, DN25, DN40, DN50, DN80, DN100 and other six diameter and pipe connection types are flange connection. Due to the large measurement flow, guide rods are designed in the middle of the float to prevent the float from damaging the cone.
3, anti-corrosion type flowmeter, according to the requirements of the measurement medium, using the appropriate corrosion-resistant materials to meet the user's process requirements.