5) Next up I insulated the pipes where condensation forms directly from the compressor. I used inexpensive water pipe insulation from copyright or Home Depot to wrap all exposed parts that had potential for condensation.

However, manufacturers usually sell their products online or through resellers, so a manufacturer having a physical store is rare.

Exhaust hoods are necessary part of a commercial kitchen. They are needed for safe operation of the kitchen, plus keeping in line with health standards.

Do you have any vacuum gauges at all to test the pump? ( Though I doubt that is the problem based upon your tests )

I would prefer those fittings to have internal O rings and knurled thread on ports (similar to R134a vacuum gauge sets) that do not require high torque compression fittings. Finger tight and you are good to go. You spot a leak, change the O ring and you're back in business.

Of course, if someone used a larger can, say a #10, that is bigger than the top of the container that surrounds the filter and captures the oil, then the "disk" wouldn't be needed at all. In that case, an AN8 fitting might work -- or maybe there are longer ones out there somewhere.

Whichever freeze dryer model you choose, be sure you’re getting it from a trustworthy source. The only place where you’re guaranteed complete satisfaction is the manufacturer’s store or their website, so that’s where I’d buy if it were up to me.

.. Hence the vapor barrier. But once I opened it up I figured I may as well insulate the bare ports as well, and insure that the water was diverted away from the electrics of the system. Once I sealed up the insides I noticed that the condensation on the front panel increased dramatically as the air was trapped between the plastic vapor barrier and the more info back of the front panel. That was when the drip rail was installed on the front of the unit.

Don’t buy freeze dryers from companies that lack certifications or a valid history of quality assurance.

You can decide between electric or gas fryers. Electric fryers take a longer to heat up, but they recover quicker between frying cycles. They are also easier to maintain. Gas fryers are able to go to higher temperatures, and they also heat up faster than electric.

Never buy a freeze-dryer that isn’t sold by a reputable brand or any location that could have tampered with the device. Most companies vet their authorized resellers extensively, so they may be safe. However, used units sold elsewhere may not have been re-tested by the manufacturer for issues.

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Presumably you have one of the medium sized units that is used for dried flowers, taxidermy etc - those are most common on the market. Lab supply places have very small ones for scientific samples. Food oriented freeze dryers tend to be factory sized.

adding insulation on the 3 ports on the chamber (One time thing - the drain and vacuum ports are very easy to get to)