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An elbow is a pipe fitting installed between two lengths of pipe or tubing to allow a change of direction, usually a 180°, 90° or 45° angle, though 22.5elbows are also made. The ends may be machined for butt welding, threaded (usually female), or socketed, etc. When the two ends differ in size, the fitting is called a reducing elbow or reducer elbow.
Elbows are categorized based on various design features as below:
45 Degree Elbow --- where change in direction required is 45°
90 Degree Elbow --- where change in direction required is 90°
180 Degree Elbow--- where change in direction required is 180°
Specification:
Seamless Elbow: Nps1/2” to 24”, DN15-DN600, Butt Welded Elbows 24”-72”, DN600-DN1800
SCH10 to SCH160, XXS.
Product Type:
LR45degree, 90degree, 180degree.
SR5degree, 90degree, 180degree.
Standard:
ASME B16.9, ASTM A234, ASTM A420,
ANSI B16.9, ANSI B16.25, ANSI B16.28,
MSS SP75, JIS B2311, JIS B2312, JIS B2313.
EN 10253-1, EN10253-2.
Grade and Material:
ASTM Standard:
Stainless steel: ASTM A403 WP304,304L, 316, 316L, 321, 1Cr18Ni9Ti, 00Cr19Ni10, 00Cr17Ni14Mo2.
Alloy Steel: A234WP12, A234WP11, A234WP22, A234WP5, A420WPL6, A420WPL3.
DIN Standard:
Stainless steel: 1.4301, 1.4306, 1.4401, 1.4571.
Alloy Steel: 1.7335, 1.7380, 1.0488, 1.0566.
JIS Standard:
Stainless Steel: SUS304, SUS304L.SUS316, SUS316L, SUS321.
Alloy Steel: PA22, PA23, PA24, PA25, PL380.
GB Standard:
10# ,20#, 20G, 23G, 20R, Q235, 16Mn, 16MnR, 1Cr5Mo, 12Crmo, 12CrMoG, 12Cr1Mo.
Surface Finishing: Transparent Oil, Rust-Proof Black Oil or Hot Galvanized.
Usage:
A 90 degree elbow is also called a "90 bend" or "90 ell". It is a fitting which is bent in such a way to produce 90 degree change in the direction of flow in the pipe. It is used to change the direction in piping and is also sometimes called a "quarter bend". A 90 degree elbow attaches readily to plastic, copper, cast iron, steel and lead. It can also attach to rubber with stainless steel clamps. It is available in many materials like silicone, rubber compounds, galvanized steel, etc. The main application of an elbow (90 degree) is to connect hoses to valves, water pressure pumps, and deck drains. These elbows can be made from tough nylon material or NPT thread.
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