What is ASME B16 B16 10?
ASME B16 10 (FACE TO FACE DIMENSIONS) : 2017 – Valve Face to Face Dimensions ASME B16.10, Face to Face dimensions of flanged Valves ASME B16.10 pressure class 150/300/600/900/1500/2500. Upon request from industry and government, ASME has been defining piping safety since 1922.
What is the ANSI standard for face to face dimensions?
Singular Face-to-Face dimensions for Class 150 and Class 300 valves, and short and long pattern face-to-face dimensions have been added to Tables 7 and I-7. Following approval by the B16 Standards Committee, this Standard was approved as an American National Standard by ANSI on April 25, 2017.
What’s new in the 1986 edition of the ANSI safety code?
In the 1986 Edition, ductile iron and the alloys covered by ANSI B16.34 were added to the materials covered. Wafer type gate and check valves, Class 150 Y-pattern globe and check valves, and several patterns of butterfly valves were added to the types covered. Inch dimensions were converted from common to two-place decimal fractions.
Why did the 1933 American standard for face-to-face dimensions not gain acceptance?
Development of a national standard was hindered by the diversity of existing practices and by adverse economic conditions in the early 1930s. A proposed 1933 American Standard for face- to-face dimensions of ferrous flanged valves did not gain acceptance, even though it was largely based on a 1931 Standard Practice of MSS.