Product category:
Tanks, pipework, nozzles, tube fittings
News Release from: Bio-Chem Valve and Omnifit | Subject: Custom designed fittings
Edited by the Processingtalk Editorial
Team on 22 April 2004
Custom design solves peristaltic pump
problem
Omnifit has helped a peristaltic pump manufacturer solve a difficult fluid transfer problem by manufacturing a custom-designed small sized fitting for the 0.5mm ID pump tubing
Omnifit has helped a peristaltic pump manufacturer solve a difficult fluid transfer problem by manufacturing a custom-designed fitting for the pump tubing The customer needed a method of connecting the peristaltic pump tubing (0.5mm internal diameter) to a female 0.25"-28 UNF flat bottomed port
This article was originally published on Processingtalk on 28 Feb 2003 at 8.00am (UK)
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This was difficult because the peristaltic pump tubing is soft walled and also because the internal diameter was too narrow for a conventional barbed adaptor.
The solution from Omnifit was a 0.25"-28 male fitting with an internal titanium tube.
The peristaltic pump tubing slides over the titanium tube, preventing compression when the fitting is tightened.
An inverted cone slides over both the peristaltic and titanium tubes, providing a compression grip when the cap is screwed on.
The cone is made from Tefzel, as the friction coefficient of a PTFE cone would be too low to prevent the tubing from being pulled out and PEEK would be too hard to make a good compression grip.
The overall dimensions of the fittings' components are 10mm by 30mm.
Omnifit experimented with several different approaches before presenting a design proposal to the customer.
Prototypes were manufactured for customer trials, and once the final design was approved, Omnifit set up a Kanban system at its manufacturing facility to meet the client's delivery requirements.
Omnifit has been a specialist designer and manufacturer of inert fluidic components for over 30 years.
Its sales and marketing organisation was merged last year with that of Bio-Chem Valve, its sister company within the Halma Group.
The combined product lines now provide a complete range of inert components for OEM and end-user applications.
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