The Manufacturers Standardization Society (MSS) is pleased to announce the publication of the following revised Standard Practices:
- MSS SP-99-2016a, Instrument Valves (replaces 2016 edition)
- MSS SP-105-2016a, Instrument Valves for Code Applications (replaces 2016 edition)
- MSS SP-120-2017, Flexible Graphite Packing Sealing for Rising Stem Valves
The original SP-99-2016 AND SP-105-2016 (published November 2016) have been replaced by this revised 2016a edition. Contact MSS or your distributor if you purchased the original 2016 edition, for a discounted replacement.