MSS SP-72-2010 Ball Valves with Flanged or Butt-Welding Ends for General Service

Manufacturers Standardization Society (MSS). 2010. 13 p. This Standard Practice covers flanged orm butt-weld end ball valves having in general, but not restricted to, round openings which may be full port, regular port, or reduced port types. The following characteristics shall be considered standard practice unless otherwise specified by agreement between manufacturer and purchaser.
Valves covered by this Standard Practice are suitable for use in general liquid and gas service. Their service pressures and temperatures generally conform to standards cited in Paragraph 2, but may be restricted by the materials used for their seats and seals, or by other special considerations