We receive formed heads of all sorts of sizes and schedule thicknesses. We typically rely on the supplier to perform the correct work. We will perform a check on the size/thickness as well as verify the heat# to the MTR. Typically we throw a tape measure across the opening and then a caliper on...
We have a project that we were about to encounter a problem with. Thankfully it resolved itself without going this direction but I still have the question in my mind of: is it possible?
-We have a pressure vessel; Section VIII Div 1. Head welded to a shell using a single sided butt weld.
Due...
All,
I am currently going though some issues with an impact tested weld procedure that also needs PED sign offs :( P1G1-P1G1 1.5" coupon GTAW root with SAW fill/cap.
I completely understand that I need to use QW-403.6 and that it only qualifies me for a min weld thickness of 5/8. It's...
There are several shops that produce U-stamped brewing vessels. A company in southern Missouri produces several various vessels per week. They have a full-time AI.
https://www.paulmueller.com/commercial-brewing-equipment/brew-kettle
Clients reject weld procedures all the time. I doubt I have a pass rate as high as 20% with our WPS'. They meet ASME, CRN, and PED; yet customers continue to ask for specifications beyond standard/outside norms.
Charge them 300% mark up of what it would cost you to re-qualify a new procedure...
We use ER90S-B3 for GTAW, FCAW.
Sub arc we use B9
Just be aware the concerns with dissimilar metals welded to P91; the EPRI group has a LOT to say about concerning temperatures, PWHT, metal chemistry, etc.
Does it have to be open end?
https://www.grainger.com/product/RIDGID-Aluminum-48-Straight-Pipe-4NV22
Usually for bolts and nuts that size you need to use a hydraulic system such as Hytorc or Enerpac.
I bet Phil Swift could slap some Flex Seal on that...it's a 'fast solution'.
As both MJCronin and IFRs said:
First priority: make it safe (immediate action)
If you have done this; you don't need a 'fast solution'.
MJCronin is right..
The "Fast" solution is to CORRECTLY REPAIR THE VESSEL.
If...
My shop works with materials/vessels for Power, Oil/Gas, Chemical plants, all kinds of groups with particular quality needs.
In general, you will meet everybody's assurance requirements if:
Step 1) Make sure the supplier is trusted in the industry. Has a good history, client base, certified...
Standard Designation: BPV Section I
Edition/Addenda:
Para./Fig./Table No:
Subject Description: PG-52.3, Circumferential Ligaments
Date Issued: 06/29/1998
Record Number: BC98-160
Interpretation Number : I-98-15
Question(s) and Reply(ies):
Question: Does PG-52.3 require the cross-sectional area...
So... let me get this straight.
-Your supplier sells you defective equipment. They have no quality control process to control the failure rate that is as high as 25% of their shipped product.
-You continue to buy from them.
-There is no negative aspect for them aside from occasionally you...
