Sleeving required in ex application
Sleeving required in ex application
(OP)
We require a sleeving material (about .5" dia) that will be used to house low powered electronic sensors that will be submerged in tanks containing crude oil & salt water.
If anyone can suggest where we might look for sleeving material that would meet the electrical requirements of UL an CSA in this type of application I would appreciate it very much.
Thank you in advance,
John
If anyone can suggest where we might look for sleeving material that would meet the electrical requirements of UL an CSA in this type of application I would appreciate it very much.
Thank you in advance,
John





RE: Sleeving required in ex application
RE: Sleeving required in ex application
Thanks,
John.
RE: Sleeving required in ex application
I built "temp sensor chains" that were 30 feet in length for measuring the temperature gradients in the Columbia river (Oregon). These were MUX'ed thermistor arrays that had a thermistor on a MUX/amp PCB that were seperated by about a foot of hookup wire between nodes. I used polyester-strand reinforced ether-based polyurethane tubing, reinforced to minimize stretch in the swift river currents. I backfilled the tubing with one of Dow Chemical's heat transfer oils (DOWTHERM RP as far as I can remember) to improve thermal conductance and keep water out. You can get this tygon tubing from www.ColeParmer.com (F-4040-A). Their prices are kinda spendy though. At least get their free tubing test kit:
FREE OFFER! NEWLY UPDATED MASTERFLEX® TUBING KIT MAKES IT EASY TO TEST CHEMICAL COMPATIBILITY!
Vernon Hills, Illinois, October 8, 2002—The newly updated Masterflex® Tubing Test Kit— available FREE of charge—is a simple way to test chemical compatibility with Masterflex pump tubing. The kit contains samples of 15 different Masterflex tubing formulations, including recently added extended life platinum-cured silicone, PharMed® high-pressure, and PTFE tubing. The kit comes with simple instructions on quickly testing the compatibility of any chemical.
For more information,
contact the Cole-Parmer Instrument Company,
625 E. Bunker Court, Vernon Hills, IL 60061-1844.
In the U.S. or Canada, call toll-free
1-800-MASTERFLEX (1-800-627-8373).
International customers can call (847) 549-7600.
Or visit our web site at www.masterflex.com
(From http://www.coleparmer.com/techinfo/techinfo.asp?htmlfile=Press_9999936_tubing_kit.htm )
There are several other lower priced suppliers out there;
ALSCO ( http://www.alscoind.com/onlinecat.htm ) Very low prices!!
Ryan-Herco (www.ryanherco.com) Look at their TygoThane reinforced tubing.
Harrington plastics ( www.harringtonplastics.com )
Hope this helps,
Ff
RE: Sleeving required in ex application
Regards,
John