Certification
ASME U-stamp fabricators
Required to build coded pressure vessels. Non-negotiable when it applies.
1 shop states it holds ASME U-stamp in CT. Each entry below shows the sentence we read it from, on the shop's own website — we don't record a certification we can't quote. Confirm current status with the shop or the certifying body before you award work.
By state
Johnstone Company, Inc.North Haven, CT
“ASME "U" & "R" Stamp Pressure Vessels”https://johnstonecompany.com/
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Tell us what you need made and we'll put it in front of shops that hold the right certification — and welders qualified to the same code, if the job needs people on site as well as parts.
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