Weblubricated stud bolts w/0.15 friction value ... based on using weldneck flanges & lubricated stud bolts with a 0.15 friction factor.*** ansi 900# flange ansi 1500# flange ansi 2500# flange rec. torque ft. lbs hydro test pressure: 3355 psi hydro test pressure: 5585 hydro test pressure: 9280 psi WebThe usual sequence is: Remove–>Examine–>Clean–>Lubricate each bolt as required–>check if the nuts can be reused–>Tighten the bolt Any damaged/questionable bolts or nuts shall be disposed of and replaced with new items as per the correct piping specification. Clean all exposed flange surfaces.
Bolting sequence - Mechanical engineering general discussion
WebTorque Sequence: 1, 41, 33, 25, 17, 9, 5, 13, 21, 29, 37, 3, 43, 35, 27, 19, 11, 7, 15, 23, 31, 39, 2, 42, 34, 26, 18, 10, 6, 14, 22, 30, 38, 4, 44, 36, 28, 20, 12, 8, 16, 24, 32, 40 For 44 bolt flanges, torque bolts in a criss-cross sequence. Lookup flange bolt torque patterns on your phone in seconds WebFlange Calculator HYTORC flange bolting calculator computes recommended torque values, bolting patterns, tool selection and pump pressure settings for standard ASME B16.5 and API 6A flanges under normal assembly conditions. Flange … chirurg verbandmaterial
Heat Exchangers and the Bolting of Gaskets HTL Group
WebThe purpose of this procedure is to provide work methodology, guidelines, and quality requirements for the execution of Flange bolting as per international codes, Standard … WebJun 2, 2024 · The alignment of the flange bolts must be within 3 mm (1/8 inch) maximum offset. • Check if the flanges are co-axial or parallel before you insert the gasket in between the flange pipe. Checking points for the gaskets before tightening flange bolts • Examine the gasket making sure it is free from all defects. The sequence has been used for pipe flanges on both ASME B16.5 and ASME B16.47 flanges (NPS 26 inch and above), heat exchangers, and other applications like butterfly valves. You’ll see the Star Pattern applied to all types of gasket materials and flange types, including Raised Face (RF), Ring Type Joint (RTJ), … See more As we mentioned earlier, this is the most common of all bolt tightening sequences used on flanged connections. The pattern is well understood … See more PCC-1 refers to the Modified Star as “Alternative Assembly Pattern #1,” and this bolt tightening sequence follows the same tightening pattern as the Star. What’s different is how … See more While PCC-1 covers the use of the Circular Pattern, Hex Technology does not recommend the bolting pattern for the average assembler. The Circular Pattern can only be used … See more The Quadrant Pattern, or “Alternative Assembly Pattern #3,” is more efficient than both the Star Pattern and Modified Star Pattern. With the Quadrant Pattern, fastener preload … See more graphisoft curso archicad