MSS
MSS is the only organization in the world dedicated exclusively to the technical needs of the valve and fittings industry. Standards and codes are written and revised by 25 technical committees and address topics such as valves, valve actuators, pipe fittings, flanges, and pipe hangers.
MSS SP-51-1991(R1995)
Class 150WL Corrosion Resistant Cast Flanges and Flanged Fittings
$37.00 $73.00
MSS SP-53-1995
Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping C
$52.00 $104.00
MSS SP-53-1999 (R2007)
Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping C
$52.00 $104.00
MSS SP-53-2012
Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping C
$55.00 $109.00
MSS SP-54-1995
Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components - R
$52.00 $104.00
MSS SP-54-1999 (R2007)
Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components - R
$32.00 $63.00
MSS SP-54-2013
Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components - R
$55.00 $109.00