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Custom Pressure Vessel Articles
Information on the ASME Code and DOE Pressure Safety Rules
The Department of Energy now requires the national laboratories to meet 10 CFR 851 Appendix A Part 4 for all new pressure vessels and pressure piping.
Case Study: Manufacture of a Helium/Hydrogen Heat Exchanger
Case Study of the redesign & manufacture of a heat exchanger for use in a liquid hydrogen target for Thomas Jefferson National Accelerator Facility.
Toughness Testing and ASME B31.3 Process Piping Code
ASME B31.3 Process Piping Code is most often specified as the code governing design, fabrication & inspection of pressure piping for national laboratories.
Using commercial vacuum flanges in ASME Section VIII Division 1 Code stamped vessels
Conflat type compatible flanges are widely used in vacuum systems and have been used in scientific equipment for handling liquefied and pressurized gases.
Brazing Aluminum
Brazing particularly appropriate when aluminum parts to be joined are too small or thin to weld easily, or for many leak tight seams in thin wall material.
What is Post Weld Machining
Common across all customer segments, whether semiconductor, advanced instruments, or superconducting particle accelerators, is the need to transform custom weldments into precision machined parts through a process called “Post Weld Machining”.
Certified Welding Inspectors Ensure Customer Satisfaction
Meyer Tool employs 2 AWS certified welding inspectors to assure customers that welding has been performed to spec, that code requirements have been met with respect to welding & that welds are free of defects.
Meyer Tool Qualifies Welders for Pressure Equipment Directive Work
Five members of Meyer Tools' weld department are certified to build pressure vessels and piping to European Union Pressure Equipment Directive standards.
Understanding ASME UG-45
ASME Code Section VIII Paragraph UG-45 regarding minimum Nozzle Neck Thickness has been revised in an attempt to clarify a confusing set of requirements.
A Survey of Pressure Vessel Code Compliance Methods for Superconducting Radio Frequency Cryomodules
Meyer Tool worked with the SRF group at Argonne National Laboratory to ASME Code U stamp the Liquid Helium Vessels surrounding the niobium cavities.
Specifying Nozzle Ports on Cylindrical Vessels
This article suggests a simple standard method of specifying the location and tolerance of nozzle ports on cylindrical vacuum or pressure vessels.
Welder Qualifications and the ASME Code
All Meyer Tool welders are certified to ASME Boiler and Pressure Vessel Code Section IX to ensure that welding, weld procedures, & welder qualifications meet quality standards.
ASME Section VIII UHA-51 Impact Test: Changes Affecting Cryogenic Vessels Made from Austenitic Stainless Steel
A discussion of changes to the current edition of the ASME Boiler & Pressure Vessel Code regarding the manufacture of cryogenic pressure vessels.
Qualifying Meyer Tool Welders for an Aerospace Application
Recently Meyer Tool completed a project that required us to qualify our welders to AWS D17.1, Specification for Fusion Welding for Aerospace Applications.
Welding Basics: The Fillet Weld
When and how to use a fillet weld, and the proper procedure used for specifying one in your design.
ASME Section VIII Part UHA-51 Impact Tests – Revisited
Follow-up to July 2012 article covering required test temperature of impact tests for welding procedure qualifications & pre-use testing welding consumables.
Design and Fabrication Considerations for Stainless Steel Liquid Helium Jackets Surrounding SCRF Cavities
Some guidance for use in specifying an ASME Code Pressure Vessel for use as the liquid helium pressure container surrounding a SCRF cavity.
Aluminum ASME Code Stamped Pressure Vessels
A comparison of stainless steel vs. aluminum as the material of construction for vacuum vessels & the suitability of aluminum for customer applications.
Repair of ASME Code Stamped Pressure Vessels
A discussion of the requirements for repair of an ASME Code Stamped Pressure Vessel as covered by the National Board Inspection Code (NBIC) “R” symbol.
C-ring Seals – A Versatile Solution for Extreme Sealing Environments
A discussion of the common types of C-ring seals used with removable flanges or panels in vacuum chambers & pressure vessels for applications including jet engines, space applications and oil, gas & chemical equipment.
ASME Code Section VIII Pressure Tests
Pressure testing of cryogenic pressure vessels to meet ASME Code Stamped Section VIII requirements.
Understanding Weld symbols –The fillet weld
A discussion of terminology and symbols used in drawings for fillet welds.
Understanding Weld symbols – The groove weld
A discussion of terminology and symbols used in drawings for fillet welds.
