sight glass

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sight glass

[′sīt ‚glas]
(engineering)
A glass tube or a glass-faced section on a process line or vessel; used for visual reading of liquid levels or of manometer pressures.

sight glass

A glass tube used to indicate the liquid level in a pipe, tank, or the like.

sight glass

sight glass
sight glass
Liquid refrigerant flows past the sight glass. If the charge of refrigerant is low, bubbles will be seen. A fully charged system has no bubbles.
sight glass
A gunsight.
i. A transparent tube on the outside of a reservoir or tank that shows the level of the fluid in the container.
ii. A small window in the high side of a vapor-cycle cooling system. The system is fully charged if there are no bubbles seen in the sight glass.
iii. The transparent glass of a gun sight or a head-up display.
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References in periodicals archive ?
Tenders are invited for Sight Glasses For Drain Lines
The product range meets world class quality and includes magnetic level gauges, glass level gauges, sight glasses, sight flow indicator, level switches, magnetostrictive transmitters, remote seals (Badotherm, Holland) and safety relief valves (Farris, US).
Three tenders for the supply of (a) different mechanical spare parts for the flour mills including pipes, belts, bolts and ball bearings among other items, (b) other parts for the same including filters, riddles, elbows, sight glasses for the pneumatic system, also (c) 71 different capacity electric motors.
Custom design features include manual or motorized raising/lowering cake agitators, mixers, temperature control options, jacketing, valving, special porting, sight glasses, instrumentation and pumps.
To keep that from happening, check the three sight glasses on the side of the flat bottom Stryker's OBOE.
Elesa offer an extensive range of special versions for the column level indicators such as a red float, black float with stainless steel spiral, greater length sight glasses, pre-set electric sensors, packing rings, built-in thermometer, external thermometer with probe, electric level sensor and special screw with nickel-plated brass top fitted to the lower assembly for maintenance operations.
Star Incorporated provides an extensive line of process observation equipment - sight glasses, lights, sanitary fittings, and level gage instrumentation.
Their portfolio includes tank cleaning machines, instrumentation, tank access covers, tank agitators and mixers, sight glasses and other tank accessories (www.
In addition, the large sight glasses and magnetic drain plug are designed to provide longer bearing life.
Commercial applications include food packaging film, injection molded sight glasses, filter housings, sun and safety glasses, and medical components.
Custom design features include mixers, temperature control options, jacketing, valving, special porting, sight glasses, instrumentation, and pumps, plus a range of replaceable filter media.
But the traditional methods, such as sight glasses, don't work particularly well under high pressure.