Reciprocating piston flow meters suit many media
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Roban Engineering product story
Edited by the Engineeringtalk editorial team
Feb 3, 2004
Roban's second-generation positive displacement reciprocating piston flow meters are suitable for applications such as paint, ink, solvents, oils, resins and liquid fuels to name but a few.
Roban's second-generation positive displacement reciprocating piston flow meters are suitable for applications such as paint, ink, solvents, printing, packaging, petrol chemicals, pharmaceutical, cosmetics, perfumes, oils, resins and liquid fuels to name but a few.
The latest Generation II flow meter is a true positive displacement meter that has a novel 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 series II flow meter combines outstanding accuracy within 0.1% of flow rate with an exceptional turndown ratio of up to 200:1.
At constant flow, with all other conditions being constant, the flow meter does not vary more than 0.025% in repeatability.
This superior performance is supported by the National Type Evaluation Program (NTEP), Certificate of Conformance meeting the National Institute of Standards and Technology (NIST) Handbook 44 requirements and the Canadian Weights and Measures Sections 14 and 15 Regulations.
This all adds up to our meter being virtually unaffected by changing viscosities.
The inline meter design allows a wide operating range from 0.2 to 40gal/min and a fluid compatibility that has been proven over many years of testing.
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