Vortex flowmeter installation requirements for straight pipe sections Posted by : admin / Posted on : Sep 21， 2019

  Properly selecting the installation point and properly installing the flowmeter are very important links. If the installation link is wrong, the measurement accuracy will be affected, and the heavy one will affect the service life of the flowmeter and even damage the flowmeter.
  It is very important that the vortex flowmeter installation meets the requirements for straight pipe sections. Its detailed requirements are as follows:
  If there is a tapered pipe upstream of the installation point of the flowmeter, there should be a straight pipe section of not less than 15D (D is the pipe diameter) upstream of the flowmeter, and a straight pipe section of not less than 5D in the downstream.
  If there is a diverging pipe upstream of the installation point of the flowmeter, the upstream of the flowmeter should have a straight pipe section of not less than 18D (D is the pipe diameter), and the downstream should have a straight pipe section of not less than 5D.
  If there is a 90° elbow or down joint upstream of the installation point of the flowmeter, there should be a straight pipe section of not less than 20D upstream of the flowmeter, and a straight pipe section of not less than 5D downstream.
  If there is a 90° elbow on the same plane upstream of the installation point of the flowmeter, there should be a straight pipe section of not less than 25D upstream of the flowmeter, and a straight pipe section of not less than 5D downstream.
  The flow regulating valve or pressure regulating valve should be installed as far as possible downstream of the flowmeter 5D. If it must be installed upstream of the flowmeter, if there is a piston or plunger pump upstream of the flowmeter, a piston or Roots blower, compressor .
  Special attention: If the valve is installed near the upstream of the installation point of the vortex flowmeter, the valve is continuously opened and closed, which has a great influence on the service life of the flowmeter, and it is very easy to cause permanent damage to the flowmeter. The flowmeter should be avoided to be installed on the very long pipelines in overhead. After a long time, the leakage of the flowmeter can easily cause the leakage of the flowmeter to the flange. If it has to be installed, it must be in the upstream and downstream of the flowmeter. Pipe fastening devices are provided separately.
magnetic flowmeter