ASME B16.49-2017 pdf free download.Factory-Made, Wrought Steel, Buttwelding Induction Bends for Transportation and Distribution Systems.The size of this pdf file is 6.31M.
ASME B16.49-2017 covers design, material, manufacturing, testing, marking, and inspection requirements for factory-made pipeline bends of carbon steel materials having controlled chemistry and mechanical properties, produced by the induction bending process, with or without tangents. This standard covers induction bends for transportation and distribution piping applications (e.g., ASME B31.4, B31.8, and B31.11). Process and power piping have differing requirements and materials that may not be appropriate for the restrictions and examinations described herein, and therefore are not included in this Standard.
Manufacturing Process
This process utilizes induction heating to heat a narrow band 360 deg around a pipe or cylinder at the point of bending as the pipe or cylinder is being pushed through the inductor coil at a constant velocity. After the material passes through the coil, it may be cooled by forced air or water spray, or it may be allowed to cool in still air. Bends in any producible wall thickness and diameter are covered. Induction bends covered by this Standard may be produced from seamless pipe, welded pipe, or cylinders.
Fabricated Bends
Larger angle bends obtained by girth welding two ormore smaller angle bends together are considered pipe fabrications and as such, are not within the scope of this Standard.
Standard Units
This Standard states values in both SI (Metric) and U. S Customary units. These systems of units are to be regarded separately as standard. Within the text, the U.S. Customary units are shown in parentheses. Best journey game for mac. The values stated in each system are not exact equivalents therefore, it is required that each system of units be used independently of the other. Combining values from the two systems constitutes nonconformance with the Standard.
ASME B16.49-2017 covers design, material, manufacturing, testing, marking, and inspection requirements for factory-made pipeline bends of carbon steel materials having controlled chemistry and mechanical properties, produced by the induction bending process, with or without tangents. This standard covers induction bends for transportation and distribution piping applications (e.g., ASME B31.4, B31.8, and B31.11). Process and power piping have differing requirements and materials that may not be appropriate for the restrictions and examinations described herein, and therefore are not included in this Standard.
Manufacturing Process
This process utilizes induction heating to heat a narrow band 360 deg around a pipe or cylinder at the point of bending as the pipe or cylinder is being pushed through the inductor coil at a constant velocity. After the material passes through the coil, it may be cooled by forced air or water spray, or it may be allowed to cool in still air. Bends in any producible wall thickness and diameter are covered. Induction bends covered by this Standard may be produced from seamless pipe, welded pipe, or cylinders.
Fabricated Bends
Larger angle bends obtained by girth welding two ormore smaller angle bends together are considered pipe fabrications and as such, are not within the scope of this Standard.
Standard Units
This Standard states values in both SI (Metric) and U. S Customary units. These systems of units are to be regarded separately as standard. Within the text, the U.S. Customary units are shown in parentheses. Best journey game for mac. The values stated in each system are not exact equivalents therefore, it is required that each system of units be used independently of the other. Combining values from the two systems constitutes nonconformance with the Standard.
Asme B16 34 2017 Free Download 64-bit
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ASME B16.34 - 2017 - Wall thickness for Multipiece valve
ASME B16.34 - 2017 - Wall thickness for Multipiece valve
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Asme B16 34 Pdf
American Society of Mechanical Engineers (ASME) standards. ASME B16.34 - Valves Flanged, Threaded and Welding End. ASME B16.34 - Materials in Group 1.1 - Carbon Steel 1 Upon prolonged exposure to temperatures above 800°F, the carbide phase of the steel may be converted to graphite. Permissible, but not recommended for prolonged use above. ASME B16.3: Malleable Iron Threaded Fittings Classes 150 and 300 ASME B16.33: Manually Operated Metallic Gas Valves for Use in Gas Piping Systems up to 125 PSI (Sizes NPS 1/2 Through NPS 2) ASME B16.34: Valves – Flanged, Threaded, and Welding End ASME B16.34 INTERPRETATIONS Interpretations to B Valves – Flanged, Threaded,. Fisher valve materials that conform to ASME B Standard Class pressure-temperature ratings are listed in tables 2 and 3. These ratings apply to all Fisher cast, forged, and fabricated steel valves. For ASME Standard CL150 Valves(1) SERVICE TEMP ( F) WORKING PRESSURE (PSIG) LCC LF2 WCC WC6 (2) WC9 (2) C12A (2) CF8 (2,3) or 304.
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Asme B16.34 Pdf Free Download
Hi all,
I'm checking last rvision of B16.34 and I'm a little bit confused about Multipiece valve wall thickness.
In Paragraph 6.1.2 - c) it is stated:
“(c) For multipiece valve construction, where the body consists of a central core to which are affixed two end pieces, the inside diameter, d, is determined by only one of the following methods:
(1) in accordance with (a).
(2) for the end pieces, the value of d shall be in accordance with (a), and for the central core piece the value of d shall be the inside diameter of the core piece. For a core piece with axial holes, whether through- or partial-threaded, the inner and outer ligaments shall also meet the requirements of dimensions f and g in Figure 2. These ligaments shall be based upon the value of d for the core piece”.
This mean that for the core piece you can consider two very different values for d:
-if you apply method (1) you will consider a smaller diameter (based on the flow passage) and you will not take into consideration the ligaments for holes parallel to the body run (meaning at the end that no extra thickness is necessary)
-if you will apply method (2) you will consider a bigger diameter (means bigger value for thickness) and then you have to check that the sum of ligaments is at least equal to the minimum wall thickness (resulting in a thickness of the core part that is equal to the minimum wall thickness + stud size).
In conclusion, if the method (1) is acceptable for stating conformance to the standard, why one should choose method (2), leading to a much higher value for min wt? Am I missing something?
I'm checking last rvision of B16.34 and I'm a little bit confused about Multipiece valve wall thickness.
In Paragraph 6.1.2 - c) it is stated:
“(c) For multipiece valve construction, where the body consists of a central core to which are affixed two end pieces, the inside diameter, d, is determined by only one of the following methods:
(1) in accordance with (a).
(2) for the end pieces, the value of d shall be in accordance with (a), and for the central core piece the value of d shall be the inside diameter of the core piece. For a core piece with axial holes, whether through- or partial-threaded, the inner and outer ligaments shall also meet the requirements of dimensions f and g in Figure 2. These ligaments shall be based upon the value of d for the core piece”.
This mean that for the core piece you can consider two very different values for d:
-if you apply method (1) you will consider a smaller diameter (based on the flow passage) and you will not take into consideration the ligaments for holes parallel to the body run (meaning at the end that no extra thickness is necessary)
-if you will apply method (2) you will consider a bigger diameter (means bigger value for thickness) and then you have to check that the sum of ligaments is at least equal to the minimum wall thickness (resulting in a thickness of the core part that is equal to the minimum wall thickness + stud size).
In conclusion, if the method (1) is acceptable for stating conformance to the standard, why one should choose method (2), leading to a much higher value for min wt? Am I missing something?