Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM F681-82(2008)
Năm ban hành 2008
Publication date
Tình trạng
W - Hết hiệu lực
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Tên tiếng Anh
Title in English Standard Practice for Use of Branch Connections
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 5
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 This practice lists commonly used types of branch connections for carbon steel, chromium-molybdenum steel pipe and copper-nickel alloy tubing. Branch to run size applications are given in Table 1, Table 2, and Table 3. Other types of branch connections (Fig. 1) may be used provided they comply with the requirements of Title 46 CFR Subparts 56.07-10(f) and 56.70-15(g) of the USCG Regulations. TABLE 1 Branch Connection Matrix for Carbon Steel Piping LEGEND (see Fig. 1) 1 = Tee or lateral (butt weld)2 = Tee or lateral (socket weld or threaded)3 = Welded outlet (butt weld end)4 = Welded outlet (socket weld or threaded end)5 = Fabricated joint (cut-in branch) TABLE 2 Branch Connection Matrix for Chrome Moly Piping LEGEND (see Fig. 1) 1 = Tee or lateral (butt weld)2 = Tee or lateral (socket weld)3 = Welded outlet (butt weld end)4 = Welded outlet (socket weld end)5 = Fabricated joint (cut-in branch) TABLE 3 Branch Connection Matrix for Copper Nickel Piping LEGEND (see Fig. 1) 1 = Tee or lateral (butt weld)2 = Tee or lateral (silver brazed)3 = Welded outlet (butt weld end)4 = Welded outlet (silver brazed end)5 = Fabricated joint (cut-in branch)6 = Silver brazed outlet (silver brazed end) FIG. 1 Illustrative Legend for Branch Connections
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