High-precision liquid flow measurement
A
Tri-Ark product story
Edited by the Engineeringtalk editorial team
Nov 14, 2003
Two new series of positive displacement flow meters are designed for all industries requiring precise liquid flow measurement.
Two new series of positive displacement flow meters are both designed to accurately measure liquids within the adhesives, agricultural, aviation, chemical, food processing, paint, petrochemical, petroleum, pharmaceutical, printing, textiles and other industries requiring precise liquid flow measurement.
The Piston Series flow meters are a positive displacement meter that has a unique inline design consisting of three reciprocating pistons operating within their respective measuring chambers, where each piston works in a manner similar to an automobile engine.
The pistons are fitted to a "wobble" plate, which has a shaft extending from its upper surface and a valve pivot attached beneath it.
The valve pivot drives a sliding valve from piston to piston as a known amount of product flows through each cylindrical bore, controlling the sequence of events in a smooth mechanical motion.
This smooth mechanical motion is then transferred through the calibrator to the register.
The Rotary Series flow meter has a simple and efficient meter design consisting of a housing and three rotors that rotate in unison within the measuring chamber.
The absence of wear, from no metal to metal contact inside the chamber, eliminates any deterioration in accuracy and provides a longer service life.
The rotors are supported with nongalling stainless-steel bearings on two bearing plates where at the end of each rotor shaft is a timing gear.
The blocking rotor gear has twice the number of teeth as the displacement rotor gears and operates at half the rotation speed of the displacement rotors.
The timed rotation between each rotor is then transferred through the calibration adjuster to the register, which will then give a consistent and superior measurement of accuracy.
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