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Dec 19, 2023 · RE: Weep-holes in reinforcing pads and 'similar'. r6155 (Mechanical) 20 Dec 23 13:34 Air at 15 psi maximum from the threaded hole, the inspector is inside the PV (if possible) and checks for any leaks (with a bubble forming solution) from the weld between the nozzle to the shell
Aug 22, 2011 · Nozz repads yes; lug, etc repads no. The reason for the weephole in the nozz repad is so that the welds on this repad can be 'soap-bubble' tested.
Dec 4, 2006 · 11.18.6 (Relief Valve Venting) of ISO 13631 says "If specified, atmospheric vents shall have weep holes at the lowest point near the relief valve." Thus, it seems that the purchaser has the option. It's been my experience that weep holes can rarely be located such that water/ice etc. can be completely eliminated from the PSV outlet.
Sep 25, 1999 · That would provide some idea on spacing of the weep hole. For the size of the hole, it should be adequate for the flow, without washing the materials behind. You may want to consider using a geotextile designed to reduce hydrostatic pressure to zero with a colletion pipe at or near the base of the wall. I design walls in an area with annual ...
Jun 17, 2004 · The weep hole in a repad serves two purposes; to allow for entrapped gas to escape during welding of the repad to the vessel wall and to detect any leakage of vessel contents during service. Having insulation cover a weep hole is not a problem because should a leak develop between the repad weld and the shell/nozzle attachment weld, you will know.
Jul 26, 2020 · Quote: (d) Reinforcing plates and saddles attached to the outside of a vessel shall be provided with at least one vent hole. [maximum diameter 11 mm (7/16 in.)] that may be tapped with straight or tapered threads. These vent holes may be left. open or may be plugged when the vessel is in service. If the holes are plugged, the plugging material ...
Feb 27, 2006 · IE, seal it to keep air and moisture out. Yes, see UG-37 (g) (or UW-15 (d) if you don't have the latest Div1 Addenda). "X nos. of 1/4 inch NPT tell-tale holes (what you mentioned as weep holes)" to be provided. The holes shall be sealed with grease after pnuematic testing." I hope this sounds adequate.
Oct 10, 2024 · This is not a basement wall. The main interior floor slab-on-grade is a few feet higher than the exterior grade, thus the need for a cast-in-place concrete retaining wall to support the building. In this case, I am wondering if it is typical (or necessary) to include weep holes in the wall. Given that the retained soil side of the wall is under ...
May 8, 2009 · Weep holes are very common, can't recall if there's a standard that covers it, though. Experienced structural draftsmen will usually notate the preferred location, size, etc from what I've seen. Don't do a lot of structural these days, though. Someone else is bound to have a lot more info on this.
Oct 2, 2007 · Weep holes can be easily created or installed by various methods. In order of effectiveness these are: 1. Eliminating each second or third head joint. 2. Inserting oiled rods, rope or pins in the head joint at a maximum of 16 in. (410 mm) o.c. and removing before final set of the mortar. 3.
