Of stock pumps imported for use with machines for making cellulosic pulp, paper or paperboard
Part of: 841391 — Parts: — Of pumps:
870939 · 1992-02-19 — The tariff classification of mechanical seals from Finland
Literature submitted with your inquiry indicates the mechanical seals are used to prevent fluid leakage around rotating shafts. Each seal basically consists of a stainless steel housing, self-aligning stationary sealing faces made of carbide, oxide, or ceramic materials, a dynamic secondary o-ring seal, and springs incorporated in a gland ring. A flushing or recirculating port allows water to be injected into the seal to cool, clean, and lubricate it. You inquired about the following specific models of mechanical seals: 1. Safebox 877, used in stock pumps, agitators, pulpers, screw feeders,…
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