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The longitudinal seams in adjacent sections of welded pipe shall be staggered and shall be positioned so as to be away from any openings or external attachments. The distance between such seams as well as the degree of staggering shall be no less than 1 inch (25 mm). Where feasible, the longitudinal seam welds shall be located in the upper quadrant of the pipe. For testing and ventilation purposes, each section of all reinforcing pads used for pressure openings shall have two holes drilled and threaded, with a diameter corresponding to the nominal pipe size (NPS) of 1/8 inch (3 mm). These holes shall be spaced 180 degrees apart on single-piece pads. Each pad should be designed such that the diameter of the test hole is not more than one-third of the pad’s width. All sections of reinforcing pads used for structural attachments shall have one unthreaded hole with a diameter of 1/4 inch (6 mm) for ventilation purposes.
A rough translation – it still doesn’t seem entirely accurate: The adjacent longitudinal seam welded pipes should be placed at staggered positions, and any debris attached to the weld surfaces must be removed; the stagger gap should be no less than one inch; In practical applications, the longitudinal weld seam should be located in the upper 1/4 section of the tube ; For testing and ventilation, as well as to prevent fluctuations in pressure, 2 small holes should be made in the steel gaskets used with standard 1/8 inch pipes. The two holes on each gasket should be 180° apart from each other. The diameter of the testing hole should not exceed 1/3 of the width of the gasket, while the diameter of the ventilation hole is usually 1/4 inch
The longitudinal seams in adjacent sections of welded pipe shall be staggered and shall be positioned such that there is sufficient clearance from openings and external attachments. This clearance and staggering shall be no less than 1 inch (25 mm). The lengths of adjacent longitudinal seams in welded pipe should be offset from each other, with enough distance from any openings or external attachments; this distance should be at least 1 inch (25 mm). Where feasible, the longitudinal seam welds should be located in the upper quarter of the pipe. During manufacturing, the longitudinal seams should be placed in the upper part of the pipe. For testing and venting purposes, each reinforcement pad associated with pressure openings must have two holes drilled and threaded, with a diameter corresponding to the nominal pipe size of 1/8 inch (3 mm). These holes should be spaced 180 degrees apart on each pad. Each pad should be designed such that the diameter of the test hole does not exceed one-third of the pad’s width. All reinforcement pads used for structural attachments should have one unthreaded hole of 1/4 inch (6 mm) diameter for venting purposes
The longitudinal seams in adjacent sections of welded pipe shall be staggered and shall be positioned far enough away from any openings and external attachments. The distance between these seams as well as the degree of staggering must be at least 1 inch (25 mm). The longitudinal seam welds shall be located in the upper quadrant of the pipe. The arrangement of the longitudinal seams in welded steel pipes should ensure that the welds of adjacent pipes are interleaved with one another, and that there is sufficient distance between them and any openings or external attachments. The distance between intersections and maintaining distances must not be less than 1 inch (25mm). When conditions permit, the longitudinal seam should be located within 1/4 of the circumference at the top of the tube. For testing and venting, each segment of all reinforcing pads used for pressure openings must have two holes drilled and threaded, with a nominal pipe size (NPS) of 1/8 inch (3 mm). These holes should be spaced 180 degrees apart on each pad. The diameter of the test holes should not exceed one-third of the width of the pad. All segments of reinforcing pads used for structural connections must have one unthreaded hole of 1/4 inch (6 mm) diameter for venting purposes. To ensure proper testing and ventilation, each reinforcing pad used for pressure openings must have two threaded holes with a nominal size of 1/8 inch (3 mm). The size of each reinforcement ring should be proportional to the diameter, to ensure that the diameter of the test holes does not exceed one-third of the plate width. These holes on each reinforcement ring should be spaced 180 degrees apart from each other. The reinforcement plates used for external attachments should each have a 1/4 inch (6 mm) unthreaded through-hole for venting. Personal opinion, for reference only. This post was last edited by konglq on 2009-3-12 17:36]
The translation of the first half seems fine, but the latter part isn’t clear; it would be better if a person specialized in welding provided an explanation or sent some schematic diagrams
I think everyone has translated very well. Personally, I’ve learned a lot; I also tried to translate some things myself. Let’s consider everything together. Thank you all