Valve Abbreviations
Valve Abbreviations
Organisations/Societies
ANSI: American National Standards Institute
API: American Petroleum Institute
ASME: American Society of Mechanical Engineers
ASTM: American Society for Testing Materials
BS: British Standards
DIN: Deutsche Industrie – Normen
BVQI: Bureau Veritas Quality International
ISO: International Standards Organisation
Valve Materials
Br: Bronze A.I. All Iron
C.I.: Cast Iron M.I. Malleable Iron
N.I.: Nickel Iron D.I. Ductile Iron
C.S.: Cast Steel/Carbon Steel F.S. Forged Steel
S.S.: Stainless Steel PVC Polyvinyl Chloride
N: Nickel
M: Monel
Mo: Molybdenum Al Aluminium
Cr: Chromium
Tef: Teflon
13% Cr Type 410 Stainless Steel
HF: Hard Face (Stellite Face)
Valve Operating Mechanisms
O.S. & Y: Outside Screw & Yoke N.R.S. Non Rising Stem
R.S.: Rising Stem
End Connections
F.E.: Flanged Ends S.E. Screwed Ends
F.F.D.: Flanged, Faced & Drilled B.W. Butt Welding Ends
S.W.: Socket Welding Ends Scr. Screwed Ends
Flg. : Flanged Ends S.J. Solder Ends