Volumetric flow meter installation and use precautions (a)
According to the characteristics and requirements for the installation and use of positive displacement flowmeters, in order to ensure the accurate measurement and reliability of flowmeters, it is first necessary to ensure that the volume of the chamber (metering chamber) is filled with liquid when measuring the flow. This is one of the principles of accurate metrology. Under the above principle requirements, please follow the installation requirements and operating procedures. 1. Installation requirements 1.1 The filter should be installed before the flowmeter, and the arrows on the two housings point in the same direction as the flow of the medium. 1.2 When the measured liquid contains gas, a gas separator should be installed before the flowmeter. 1.3 Regardless of whether the piping is installed vertically or horizontally, the rotor shaft in the flowmeter is installed in a horizontal position (ie, the dial should be perpendicular to the ground). See above. 1.4 If the flow meter is installed correctly, if it is not easy to read, turn the dial of the counter to 180 ° or 90 °. 1.5 The new flowmeter uses a bamboo stick to push the rotor several times from the exit before installation (avoiding deposits sticking to the rotor after factory inspection). 1.6 The throttle valve should be installed at the inlet of the flowmeter. The opening and closing valve should be installed at the outlet. When using the opening and closing valve, start slowly and do not open the valve suddenly. 1.7 Never purge the flowmeter with steam or gas to prevent damage to the rotor. 1.8 In the continuous use department, the flowmeter shall be provided with a bypass pipe. 1.9 Before the flowmeter is installed, the pipeline needs to be flushed, and a straight pipe section (in place of the flowmeter position length) is used during flushing to prevent welding slag and debris from entering the flowmeter. 1.10 It is forbidden to check the flowmeter composed of cast iron and cast steel with water to prevent the rust of cast iron and cast steel. 1.11 Flowmeters shall not exceed the technical requirements when used. It is advisable for the flowmeter to operate at 40 to 80% of the maximum flow . 1.12 For media that is easy to condense and crystallize, the medium in the pipe should be heated. The flowmeter and filter should be With insulation jacket. When using, the heat medium that enters the insulation jacket should be fully heated and maintain a certain temperature to ensure the normal operation of the flowmeter. ( Technology Center ) Animal feed pellet line is a complete set of machines that are specifically used to make feed pellets. Pellet Mill Pellet Mill,Small Feed Pellet Machine,Animal Flat Die Pellet Mill,Low Energy Consumption XinxiangHexie Feed Machienry Manufacturing Co.Ltd , https://www.feedmill.nl
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