Here are examples of typical welded fittings with rupture disks.
These hold internal pressure until rupture and potentially after rupture. Does the weld penetration depth need to be equivalent to the calculated minimum wall thickness? It would need to handle the same stress as the...
You replace the assembly. Overinflation valves used on a wide variety of products are welded assemblies with AS port connections. They are throw-away assemblies that can be replaced like any other tubing fitting.
I'm not concerned and am not asking about the disk. If there was no disk and I welded these parts together, why wouldn't the weld penetration not be equivalent to the minimum required wall to withstand internal pressure? Should weld penetration => tube wall thickness for distributing hoop and...
I'm trying to determine why weld penetration values for fusion welded (TIG and LASER) tubes retaining a rupture disk don't meet min wall thickness requirements to handle internal pressure. A thin disk is compressed between two cylinders/tubes and the three parts are fused together with required...
I am designing a face seal for a test fixture using 017 )-Ring with a .070 diameter cross-section. Parker recommends the corner radii of the groove should be at least three times (ideally six times) the cross-section diameter of the O-ring to avoid over-stressing the ring. This doesn't make...
This website had good info regarding using hardness to determine mechanical properties. https://materion.com/about/new-at-materion/hardness-and-strength
Hardness is shown to correlate well with tensile strength but only very loosely to yield strength and ductility. For steel, hardness and...
Has anyone ever used heat-treated steel certification having Tensile and Yield strength minimums calculated from the tested Brinell hardness value rather than a physical strength test? Is this accurate enough to say steel meets the certification minimums if the conversion meets the min?
The...
I'm trying to find out why an all-monel butt weld joint with no filler, just fused, is so much harder to get penetration depth than other CRA materials welded to Monel. We are fusing a .85 OD x.010 thick solid monel disk between two.850 OD x 1/2" ID monel tubes. We just fuse the parts...
Does anyone know what the Tubing End Dimensions are for an AS5202 BOSS?
Parker Tech told me this, "we do not make plugs for AS5202, only for J1926. AS5202 is an aerospace standard and we do not currently make fittings according to aerospace standards". I thought the same tubing end was used...
I need dimensions for AS5202 ORB Plug or male fitting but can't find them on the internet. I found the fitting end AS4395 in Parker O-Ring Handbook Table 4.4 but Parker says only the o-ring size applied to the AS5202 port and not the dimensions. The AS4395 male end fits the AS5202 ORB but the...
I have a male tapered thread that contains brass shavings and burrs in between thread flanks. Is there a common method to clean out shavings from between the threads of the male thread and also for the same problem in the tapped hole? Mcmaster -Carr has sanding wheels for Brass and Bronze but...
I HAVE A .005" 316 SHEET SANDWHICHED BETWEEN TWO 1/4 316 DISKS. ALL THREE PARTS ARE JOINED WITH FUSION WELD AND PARTS HAVE SHARP EDGES SO THE MATERIAL CAN FUSE EASILY.
PROBLEM: INLET DISK SHARP CORNER HAS A .031 DEEP X .015 STEP WHERE THE .005" THICK DISK SHOULD MAKE CONTACT AND BE FUSED...
The standard we reference is ANSI/ASME standard B1. 20.1. but I don't think we actually represent the connection as being made to a standard. I'll have to see but it's probably implied that thread meets ANSI/ASME B1.20.1.
I have a 1/2 NPT Male Brass fitting with NPT thread cut with wrong taper (2.2 instead of 1.788 degrees). Looks like it was single pointed and they attempted to fix them with a die but that's just a guess. It gages within +/- turn to face of thread but worries the incorrect taper will allow it to...
I need to design a 1" Sanitary connection onto 3/4" Tubing Fitting. I'm looking for geometry and dimensional data for this connection. I believe its a clamp type fitting and is similar to having a flange on each end. Can any one provide a link where this can be found? I found some info but...
turns out taper is way off in addition to form. It's rolled. 600 pieces may need to be scrapped if not reworkable. Waiting on sample parts to arrive form Mexico.
