فیتینگ(FITTING) چیست؟
فیتینگ ها به قطعاتی اطلاق میشوند که در سیستم های لوله کشی برای اتصال، تغییر مسیر و انشعاب گیری لوله ها مورد استفاده قرار میگیرند. فیتینگ لوله از جنس های مختلفی مانند فلز، پلاستیک و کامپوزیت ساخته میشوند و در سیستم های لوله کشی برای ایجاد اتصالات ساختاری کاربرد دارند. پس از آشنایی با فیتینگ در ادامه با انواع فیتینگ آشنا میشویم
A pipe fitting is defined as a part used in a piping system, for changing
direction, branching or for change of pipe diameter, and which is
mechanically joined to the system. There are many different types of fittings
and they are the same in all sizes and schedules as the pipe.
Fittings are divided into three groups:
Buttweld (BW) fittings whose dimensions, dimensional tolerances etcetera
are defined in the ASME B16.9 standards.
Socket Weld (SW) fittings Class 9000 ,6000,3000,2000 are defined in the
ASME B16.11 standards.
Threaded (THD) fittings Class 9000 ,6000,3000,2000 are defined in the
ASME B16.11 standards.
Light-weight corrosion resistant fittings are made to MSS SP43.
BUTT WELD FITTING
In Shape of Elbow (45DEG, 90DEG, 180DEG) Short Radius and Long
Radius, Equal and Reduced Tee, Cap, Cross, Concentric and Eccentric
Reducer.
Type: ELBOW, TEE, REDUCER, CAP, CROSS
Standard: ANSI/ASME B16.9, B16.28
Size: 1/4″ to 56″ (13.7mm to 1422mm)
SCH: 5 to XXS (1.65mm to 60mm)
Material: ASTM A234 (Gr.WPB) Carbon Steel
ASTM A403 (WP304304/L, WP310, WP316316/L, WP321, WP347)
Stainless Steel ASTM A234 (WP1, WP5, WP9, WP11, WP12, WP22) Alloy
Steel
ASTM A420 (WPL3, WPL6, WPL8, WPL9) Alloy Steel
ASTM A660 (WPHY42, WPHY46, WPHY52, WPHY60, WPHY65,
WPHY70) Alloy Steel