Low Cost Fused NPT-Threaded Sight Glass, Zinc-Plated Carbon Steel
Thread: NPT 1/2
Sodalime glass is fused to a plain carbon steel body which is Zinc-plated for added corrosion resistance. This sight glass can be threaded directly into a pipe, or a threaded boss welded to a pipe. This sight glass is an ideal budget choice for visual observation of liquid levels and their colors, present or absence of refrigerant, oil levels in a compressor. Applications include hydraulic systems with mineral oils, diesel, and other common liquids where low cost is required. Not suitable for cycling high temperature, high pressure or aggressively corrosive applications.
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