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1. How much does a second-hand flowmeter cost? The price of a second-hand flowmeter varies greatly, ranging from tens of yuan to tens of thousands of yuan, mainly depending on factors such as type, accuracy, and brand. 1. Flow meters with different measurement principles and main types and price ranges have significant differences in technical complexity and cost, which are the core factors affecting second-hand prices.
2. In addition to type, the key factors affecting price determine the final transaction price: • Accuracy level: High precision (± 0.1% level) instruments used for trade settlement also require thousands to tens of thousands of yuan for second-hand prices.
; And the instrument that is only used for monitoring the hail process (± 1.0% level) can be bought for a few hundred yuan. Material and pressure resistance level: Ordinary 304 stainless steel and atmospheric pressure design are common. If the liquid receiving part is made of expensive materials such as Hastelloy or tantalum, or can withstand high pressure and high temperature, the second-hand price will significantly increase. Brand and situation: International top brands (such as E+H, Cologne, Emerson) have brand premiums. The duration of use, degree of wear and tear, maintenance history, and inspection certificate of the sail also greatly affect the price. Special certification: Flow meters with special certifications such as explosion-proof, sanitary (3A certification), and marine use have higher design and certification costs, and second-hand prices are also more expensive. When purchasing a second-hand flow meter, it is important to confirm its working condition, historical application media, and whether it comes with a recent calibra
2. European and American industrial B2B platforms: What are the types of flow meters? How to choose a flow meter?
Types of flow meters: Diaphragm flow meter: measures the volumetric flow rate of liquid or gas media. The principle is to measure the pressure difference before and after the diaphragm. It is not suitable for liquids containing particles and is inexpensive.. Venturi flowmeter: measures the volumetric flow rate of clean or loaded liquid or gas media, measures the pressure difference generated when the fluid passes through the Venturi tube, with an accuracy of about 0.5%, and is suitable for loaded fluids. Gear flowmeter: measures the volumetric flow velocity of liquid medium, which flows between two elliptical gears and is suitable for high viscosity media. Electromagnetic flowmeter: measures the flow rate of conductive liquids, including high load or abrasive liquids, corrosion-resistant, maintenance free, and reasonably priced. Turbine flowmeter: calculates the flow velocity of gases and liquids, and the rotational speed of the turbine is proportional to the fluid velocity. It is suitable for high flow rates and requires regular maintenance. Ultrasonic flowmeter: measures the flow rate of clean, loaded, high loaded, and even viscous liquids. The sensor is not inserted into the flow rate and can be measured on-site. It is expensive and not suitable for low flow rates. Variable area flow meter: measures the volumetric flow rate of clean, loaded, viscous liquids, and clean gases, installed vertically, with a stable float height corresponding to the flow rate, providing visual readings. Eddy current flowmeter:
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