Why does the LPG tank valve freeze?

by daniel
(canada)

LPG Tank Valve And Regulator

LPG Tank Valve And Regulator

My barbecue hose (the part that fits into the tank) frosts up the metal valve part. Why does the LPG tank valve freeze?


Answer:-


I'm not a professional scientist but I do remember a few things about the laws of energy and thermo dynamics.

Consider water; in order for it to vaporise (ie. boil) it needs energy. The energy you provide is in the form of heat in the kettle or on your stove top.

The same thing applies to LPG, when it's in the tank it's a liquid and when released from the tank it's a gas. The process of transition from liquid to gas takes energy just like water but in this case the energy requirement is satisfied in the form of heat from the atmosphere.

The transition from liquid to gas takes place in the valve and any heat energy available is absorbed at this point therefore causing your tank valve to cool and if atmospheric temperature is sufficiently low (as in your case) it will freeze.

Once you've stopped using the gas your valve will gradually come back up to ambient temperature so that you can shut it off but how long this will take is dependent on the ambient temperature itself.

See Also:-


Barbecue Tips
Barbecue Grill Comparisons
Outdoor Kitchen Barbecue Islands
Tabletop Gas Grill

Return to Water Smoker Recipes from Why does the LPG tank valve freeze

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to FAQ's.

PayPal Acceptance Mark

2017 Buyers Guide

Top 10 Best BBQ Grills And Smokers 2017 Review

Read Our Choice Of The
Top 10 BBQ Grills And Smokers 2017



Get "Que Tips", our free newsletter.

* indicates required

PayPal Logo

Smokers

Offset American Smoker Manufacturing

Reverse Flow Smokers


Custom Built Trailer Smokers

Commercial Smokers


Charcoal Grills

Build A Brick BBQ Grill

Stainless Steel Inserts For a Brick BBQ Grill


Stainless Steel Charcoal Grills

Adjustable Height Charcoal Grills


Charcoal Barbecue Grills

Cook 'N' Serve Range


Custom Made Charcoal Grills

Custom Built To Your Specification


Replacement Stainless Steel Cooking Grates

Replacement Stainless Steel Cooking Grates


BBQ Hire

Hire A Smoker For The Weekend

Daily, Weekend Or
Long Term Hire


BBQ Catering

Outdoor BBQ Catering UK

Outdoor BBQ Catering UK Wide


Please Help
Keep This Site Free!

Many Amazon merchants pay us a small referral fee when you click this link and purchase from them...

http://bit.ly/BarbecueSmokerRecipes

It makes no difference to the price you pay but it really helps me continue improving this website. If you like what I'm doing then save this link and use it every time you go to Amazon. For whatever you purchase through this link (it doesn't have to be barbecue) I heartily thank you in advance.