BTC casing drawing

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4. Specification: oil tubing 2-3 / 8 "- 4-1 / 2", end processing form nue, eue. Oil casing 2-3 / 8 "- 20" perennial spare oil casing, more than 1000 tons in stock, api5ct tubing, api5ct casing, oil pipe specification 26.67-114.3mm. Api5ct oil casing specification is 114.3-508mm. Material: h40.j-55, k-55, N-80, l-80, C-90, c-95, P-110, q-125, etc. There are STC (short round buckle), LTC (long round buckle), BTC (partial ladder buckle), VAM (wangba buckle) and other buckle types of api5ct oil casing. Api5ct oil casing length R1, R2, R3
from: China investment casting portal

6. 94ppf is a pound, BTC is a trapezoidal buckle

7. Exactly speaking, it should be PPF, which refers to the pound code of oil casing, how many pounds per foot. According to API standard, its corresponding wall thickness can be found. 9 5/8'&# 39; 36PTF_ BTC casing refers to 244.48mm outer diameter, 8.94mm wall thickness and partial ladder buckle.

8. This is the identification number of oil casing. It is recommended to refer to API 5CT standard document

9. Analysis of letter codes of doors and windows on architectural drawings:
window BTC: shutter skylight
door BTM: shutter sliding door