Certifies A&B Valve is qualified and approved to calibrate, test, and stamp Pressure Relief Valves (PRV) for use in Section I and Section VIII applications.
Safety
Protect your plant and employees with industry-leading safety standards from A&B Valve.
ASME NB Stamp
ASME VR Stamp
Certifies A&B Valve is qualified and approved to repair Pressure Relief Valves (PRV) of all brands for both Section I and Section VIII applications.
T/O Certificate of Authorization
The National Board offers the Certificate of Authorization and T/O mark for the inservice testing of pressure relief valves. Requirements are described in NB-528. Accreditation of T/o Test Only Organizations.
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