Heavy Wall Borosilicate Glass Pressure Tubes
Thick-walled unworked borosilicate glass tubes rated for high internal pressure in hydraulic sight glasses. HTS 7002.39.00 for robust industrial other tubes. Monitors fluid levels in machinery.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mounted in metal frames as sight glasses
Complete pressure sight glasses are finished glassware.
If tempered for safety
Safety-tempered pressure tubes become toughened glass.
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Import Tips & Compliance
• Pressure test certificates mandatory for safety classification
• ASME certification aids customs for industrial end-use
• Distinguish from finished sight glasses (7013)
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