Displacement meter scale installation considerations ( 2)

Abstract: the displacement meter scale installation using the matters needing attention, 2) Information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. 2. The operation of the flowmeter method 2. 1 the corresponding configuration flow meter must be installed before the table valve valve after 1, table 2 ( Flow control valve) And the control switch valve 3 ( Also after the flowmeter installation) , see here. Table before valve valve after 1, table 2 a gate or ball type valve can be general mechanical, etc. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a displacement meter scale installation considerations ( 2) The article details. 2. The operation of the flowmeter method 2. 1 the corresponding configuration flow meter must be installed before the table valve valve after 1, table 2 ( Flow control valve) And the control switch valve 3 ( Also after the flowmeter installation) , see here. Table before valve valve after 1, table 2 a gate or ball type valve can be general mechanical, etc. , can also use the solenoid valve control switch valve 3 or other valves. （ After the pump shall install the check valve. ） 2. Began to run (2 All valves are in the closed position) at this time First open the oil pump valve 1 before, slowly open the table ( Ensure feed flow) - open the control switch valve open the table after 3 -- zui valve flow control valve (2 At this time can adjust flow to the required flow value) 。 This flowmeter began to normal operation. 2. 3 stop running and start running just the opposite, that is, first close the control switch valve after 3 - close the valve before table 1 - zui close the oil pump. At this time can don't have to close the flow adjusting valve 2, to ensure the next cycle flow began to run, flow still guarantee the original constant flow. Warning: when the runtime * time, must be in low speed ( The < 60 l/min) Running 50 l, and then accelerated to normal speed, otherwise easy to damage flowmeter. 3, volumetric flowmeter common fault reason, fault phenomenon of the original method for measures to prepare note rotor turn 1, the pipeline have sundry 2, measured liquid containing impurities. Damage of filter. Gear stuck in impurities into the table. Instrument and pipeline unpick and wash, repair the filter. Seal coupling liquid packing wear or lack of seal oil leakage. Tighten gland or change filler, filling sealing oil. Unstable, the hands or the continual pointer, washers & hellip; … Such as loose or rotating a rotation is not flexible. Retighten, eliminate the phenomenon of not flexible. Small partial excessive negative error ellipse gears and metering box wall collision, bearing wear, or metering box wall deformation. Replacement of bearings, repair of metering box walls with variable tooth and gear, make flexible rotation, guarantee the required clearance. After repair to check error change of big pulsating fluid large or containing gases. Reducing pulsating or adding gas separator error is too big, but big zui zui could no more than 1% more than the difference between the small error, change or repair after clearance etc. Check again adjust corresponding to zero. Level 2 meter zui zui small error is less than 0. More than 4% is all there is in this paper, you are welcome to inquire me factory flowmeter selection, quotation, etc.

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