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How to read when the rotor of the rotor flowmeter is conical? If it is spherical, how can it be read?
In the case of a cone, the reading does not refer to the end of the chain where the tip is raised, that is, the reading corresponding to the circular surface.. The float of the glass rotor flowmeter is circular, and the centerline of the float should be considered. According to the national standard for glass rotor flow meters, the position for reading the displayed value of the flow meter based on the different shapes of the float is as follows:
2. What is the reading method of the float flow meter? Taking the most commonly used glass float as an example: Due to the structural composition of the glass rotor flowmeter, the glass tube and float are important for reading. The glass tube is marked with a scale value, so it is also called a flow scale tube. There may be several types of floats, and generally speaking, the rotor flowmeter reads the position with the largest horizontal area. Additional information: Float type flow meters are classified by type. Glass float (rotor) flow meters can be divided into eight series based on their purpose and applicability: ordinary type, reinforced pipe type, small flow and small shape type, corrosion-resistant type, laboratory type, insulation type, alarm type, and high-pressure resistant type. The glass rotor flowmeter is the most widely used and numerous product in the family of flow meter covers. The purpose of use, regardless of the purpose, is actually to achieve on-site flow control, mostly for adding the current flow rate of the pipeline network. With the increasing and gradual improvement of on-site requirements, the application of metal molds has als
3. How to read a rotor flowmeter? Why?
The reading method for the rotor flowmeter is as follows: For the sub flowmeter reading method, stand in front of the flowmeter, with your eyes parallel to the float, and move your line of sight horizontally to the left until you see the outline of the float touching the positioning line. The corresponding reading value is at the intersection of the positioning line and the horizontal scale in the middle of the float.. A rotor flowmeter measures fluid flow based on the principle of throttling, but it changes the flow area of the fluid to maintain a constant differential pressure between the upper and lower parts of the rotor. Therefore, it is also known as a variable flow area constant differential pressure flowmeter or a float flowmeter. In a vertical conical tube that expands from bottom to top, the gravity of the circular cross-section float is supported by liquid dynamics, and the float can freely rise and fall inside the conical tube. Under the action of flow velocity and buoyancy, it moves up and down, and after balancing with the weight of the float, it is transmitted through magnetic coupling to indicate the flow rate on the dial. Generally divided into glass and metal flutter rotor flow meters. Metal rotor flowmeter is the most commonly used in industry. For small diameter corrosive media, glass material is usually used. Due to the inherent fragility of glass material, rotor flowmeters made of precious metals such as all titanium are also used for key control points. Rotary flowmeter is a variable area flow meter based on float position measurement. Adopting an all metal structure a