I work with solenoid valves quite a bit at work and can tell you that it is very common for them to be hot to touch when energized. You might be able to find an aluminum heat sink if it really concerns you. I googled the auto ignition temperature of propane and it is 851° F, so 170° isn't even close to being a problem.
https://www.mouser.com/Mobile/Thermal-Management/Heat-Sinks/_/N-5gg0/ Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Sun, May 6, 2018, 12:33 PM Bruce Whitmore via CnC-List < [email protected]> wrote: > Hello all, > > I did a propane leak-down test recently, and in addition to replacing the > pigtail from a relatively new regulator to the tank, I decided to replace > the hose to the solenoid, and the solenoid itself (the old one was > functioning but was quite rusty). > > After replacing the solenoid, on energizing it, it became quite hot after > a while (measuring +/- 170 degrees) which of course got me quite > concerned. > > Yet, upon researching the issue, I found this to be quite common, and is a > function of the solenoid being an electromagnet. > > More information can be found here: > > Product Review by Better Marine Services > <http://www.bettermarineservices.com/reviews/trident.htm> > > Product Review by Better Marine Services > Better Marine Services Offers the Best Marine Electrical Service, > Mechanical Troubleshooting, Computer Systems, ... > <http://www.bettermarineservices.com/reviews/trident.htm> > > Propane solenoid gets hot - Cruisers & Sailing Forums > <http://www.cruisersforum.com/forums/f115/propane-solenoid-gets-hot-90127.html> > > Propane solenoid gets hot - Cruisers & Sailing Forums > I just noticed tonight that the solenoid on my propane system was hot to > the touch. Never checked or noticed but... > > <http://www.cruisersforum.com/forums/f115/propane-solenoid-gets-hot-90127.html> > > Even the solenoid manufacturer (US Solid) references the fact that the > solenoid is not designed to be run for more than 8 hours straight and will > become hot. > > The unit draws about 2 amps of power. > > The idea of a switch that is designed as a safety device to control > propane getting hot just doesn't seem right in my book! > > Does anyone have a better solution? > > Yes, I manually turn the tank on & off when leaving the boat... > > Bruce Whitmore > > (847) 404-5092 (mobile) > [email protected] > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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