Installation method of insertion type electromagnetic flowmeter

The insertion type electromagnetic flowmeter installation method divided flow (water) installation and with pressure installation two kinds. For the stop-flow sensor, the method adopts the flange connection. First, the length of the connecting short connection on the pipe is calculated according to the inside d of the pipe inner diameter and the wall thickness s, and the pipe is opened when the pipe is allowed to stop (water). Probe outside diameter for φ39 short nozzle diameter is φ50, the probe OD is Φ62 's short nozzle diameter is φ75, the flange according to the corresponding GB configuration. After opening a hole in the pipe, the short weld with flange is welded to the opening of the pipe, welding the first position after welding, positioning to grasp the main points for the ① probe on the direction of the flow mark and the actual agreement; the ② flange is parallel to the centerline of the pipe, and the center line of the two screw holes on the front of the flange is coincident with the centerline of the pipe, To ensure that the sensor probe direction is perpendicular to the fluid direction; The depth of the ③ probe into the pipe is 10% of the pipe diameter.The insertion of the short nozzle, as far as possible not to exceed the measured pipe wall, to ensure smooth inside and outside the pipe. For the production device does not allow the flow of the case, the choice of ZFM-480 type, ZFM-600 type or ZFM-800 type can be carried out with pressure openings and installation. First, the short connection base is welded directly to the installation position of the measuring pipe, and then install the root ball valve, and then use the factory to provide a dedicated pipe opening machine with pressure open hole, hole open, close the ball valve, fluid will not overflow, and then connected manufacturers to provide special matching short and sealed pieces, and then installed on the sensor. (with pressure installation does not affect normal production).

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