For long-pattern Ball Valves, size range is NPS 2” up to NPS 16”, connections are flanges and welding ends. There is no short-pattern specified for Ball Valves.
For long-pattern Gate Valves, size range is NPS 1” up to NPS 24”, connections are flanges and welding ends. For short-pattern Gate Valves, size range is NPS 1” up to NPS 20”, connection is welding ends.
For long-pattern Globe Valves, size range is NPS ½” up to NPS 24”, connections are flanges and welding ends. For short-pattern Globe Valves, size range is NPS 2” up to NPS 16”, connection is welding ends. For size range of NPS 2” up to NPS 16”, there is obvious dimensional difference between long-pattern and short-pattern valves.
For long-pattern Swing Check Valves, size range is NPS ½” up to NPS 24”, connections are flanges and welding ends. For short-pattern Swing Check Valves, size range is NPS 2” up to NPS 16”, connection is welding ends. For size range of NPS 2” up to NPS 16”, there is obvious dimensional difference between long-pattern and short-pattern valves.
For long-pattern Lift Check Valves, size range is NPS ½” up to NPS 24”, connections are flanges and welding ends. For short-pattern Lift Check Valves, size range is NPS 2” up to NPS 16”, connection is welding ends. For size range of NPS 2” up to NPS 16”, there is obvious dimensional difference between long-pattern and short-pattern valves. Lift Check Valve is also known as Piston Check Valve.
Reference:
ASME B16.10 - Face-to-Face and End-to-End Dimensions of Valves.
Table 5 – Class 1500 Steel Flanged and Buttwelding End Valves, Face-to-Face and End-to-End Dimensions.
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