The standard typically covers classes up to 6000 psi (or higher for special applications), but the PDF charts will detail specific pressure limitations based on temperature.
Typically every 5–7 years. Always verify you have the latest revision. mss sp99 pdf
The American National Standards Institute provides the 2023 edition. The standard typically covers classes up to 6000
Industrial standards are not static. They evolve to reflect technological advancements, safety improvements, and industry feedback. MSS SP-99 has undergone several key revisions, and being aware of which version is current is crucial for compliance. The American National Standards Institute provides the 2023
The is the most current version, replacing the 2016a edition. It reflects the latest industry consensus on materials, design, testing, and marking for instrument valves. Using the 2023 PDF guarantees you are working with the most up-to-date and recognized requirements for new projects and procurement.
Multi-valve assemblies (2-way, 3-way, and 5-way) used to isolate, bleed, and calibrate instruments.