Steam or other vapor generating boilers: — Watertube boilers with a steam production exceeding 45 t per hour
f85408 · 2000-05-01 — The tariff classification of a chemical recovery boiler from Canada
The chemical recovery boiler, also known as a chemical recovery unit (“CRU”), is used in the Kraft pulping process. During this process, wood chips are cooked in a digester where heat and pressure applied to the chips along with the action of caustic chemicals (white liquor) dissolve the lignin which bonds together the individual fibers of wood. The material discharged from the digester, consisting of wood fibers (pulp), various impurities such as undissolved knots, and spent chemicals (black liquor) is known as brown stock. The brown stock is further processed through various machines, such…
f84570 · 2000-04-14 — The tariff classification of a watertube steam generating boiler imported in 3 shipments from Japan, Korea and Thailand
You indicate that the merchandise to be imported is a watertube steam generating boiler with a steam production capacity in excess of 45 tons per hour. The machine will be imported in non-assembled condition in three separate shipments, on different vessels, on different days. Shipment #1 will be parts and components made in Japan, #2 parts and components from Korea, and #3, parts and components from Thailand. The Korean goods will consist of two steam drums (one intermediate pressure drum and one low pressure drum); the Thai goods will consist, primarily, of non-pressurized parts which make…
D88567 · 1999-03-19 — The tariff classification of steam generators from Spain
The steam generators are pressure vessels which will be used in pressurized water reactor nuclear steam supply systems for the generation of electric power. In a telephone conversation with a member of my staff, you indicated that only the steam generators are being imported, not entire systems. Each vessel contains a channel head, U-tubes and a steam drum. The two integral sections are the evaporator section and the steam drum section. The primary cooling water is circulated through the inside of the U-tubes and heat is exchanged to secondary water which surrounds the outside of the U-tubes.…
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