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Vacuum Gauge - Heavy Duty
1/4" NPT



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Product Description

This industrial grade vacuum gauge has heavy-duty sensing elements and a stainless steel case for protection in harsh environments. A gauge like this offers greater accuracy than a general purpose gauge and is typically used in more demanding applications. This gauge has a built-in dampener which reduces needle fluttering. Features a convenient highlight at the 21" Hg mark which is the ideal pressure for vacuum veneering.

The filled gauge option further improves the gauge by adding glycerin which reduces needle fluttering when used with motorized pumps.

Case: Stainless Steel
Dial size: 2"
Mount: 1/4" NPT
Dial Face: 0 to 30" Hg

Why does my glycerin filled gauge have an air bubble in it?
All manufacturers of glycerine-filled gauges ship them partially filled which creates the air bubble inside. This is done to keep the gauge accurate at all altitudes.

How do I reset the vacuum gauge so the needle reads zero when there is no pressure on it?
Vacuum gauges often develop internal pressure during shipment (air shipment) which must be released for the gauge to remain accurate. Simply insert a small pin under the rubber stopper on the top of the gauge. Any inside pressure will escape and the needle will reset to the zero position. If you have a glycerine filled gauge, be sure to do this while the gauge is in the upright position to prevent the loss of fluid.

Product Reviews

  1. Review from Jacksonville, Fl

    Review by Michael Lawrence

    I have looked everywhere in all my local hardware stores for this piece of equipment. I would have saved a lot of gas if i would i have known it was only a few clicks away! Also it's fill-able. I don't know what liquid yet... but liquid filled gauges are usually easier to read because the needle wont shake so much, which gives you clearer readings!

    [from Joe: I do not recommend filling these gauges unless you are 100% certain that you have the proper fluid. Also, both the standard and the filled gauge have a special insert inside the threaded port which limits the flow of air movement and thereby minimizes needle flutter.]

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