『Installation requirements for orifice flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. Installation requirements for orifice flow meters
Hello, KNKE, a manufacturer of orifice flow meters imported from the United States, is pleased to answer your question. KNKE technology experts from the United States believe that the installation requirements for orifice plate flow meters are as follows:
1. Before installing the orifice plate, the throttle device number and size should be checked to ensure that they meet the requirements of the pipeline installation position.
2、 When installing a new piping system, the installation of orifice plates must be carried out after flushing and sweeping the pipes. 3. Pay attention to the installation direction of the orifice plate with the "+" sign facing the flow beam.
4、 The center of the orifice plate should coincide with the centerline of the pipeline, and the concentricity error should not exceed a value of 0.015 (1/β -1).
5、 When installing the orifice plate in the pipeline, it should be ensured that its end face is perpendicular to the pipeline axis and the perpendicularity error should not exceed ± 1 °.
6、 The sealing gasket used for clamping the orifice plate (including between the ring chamber and the flange, and between the ring chamber and the orifice plate) shall not protrude into the inner wall of the pipeline after clamping.
7、 The installation site of the orifice plate must be rigorous and no leakage is allowed. Therefore, installation work must be inspected before pipeline pressure testing.
8、 The pressure conduit should be laid vertically or obliquely, with an inclination of not less than 1:12. The inclination of fluids with higher viscosity should be increased. When the transmission distance of the
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9、 In order to avoid distortion of differential pressure signal transmission, positive and negative pressure pipes should be laid as close as possible, and anti freezing measures should also be taken in cold areas. Electric heating or steam insulation can be used, but it is necessary to prevent the measured medium from overheating and vaporizing, and to prevent the generation of gas in the pressure tube, which may cause false differential pressure.
10、 When the orifice flowmeter is installed on the vertical main pipeline, the position of the pressure tapping port can be arbitrarily selected on the plane of the pressure tapping device. The orifice plate is installed in a horizontal or inclined main pipeline. 1
1、 The pressure conduit shall be made of materials that are resistant to pressure and corrosion according to the properties of the tested medium. Its inner diameter shall not be less than 6 millimeters, and its length shall preferably be within 16 meters.

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