Buying Guide

83
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Revised 7/20/2018
Ductile and Alloy Iron Globe, Angle and Check Valves
Illustrated Index
3% Nickel Iron Body Check Valve
Stainless Steel Trim
Class 125 SWP
200 lb. CWP
Ductile Iron Body Globe Valve
Outside Screw and Yoke
Bronze Trim
Class 150 SWP
285 lb. CWP
F-738-31
Bronze Disc
Sizes 2" thru 10"
Flanged-Raised Face
Page 84
Ductile Iron Body Angle Valve
Outside Screw and Yoke
Bronze Trim
Class 150 SWP
285 lb. CWP
F-838-31
Bronze Disc
Sizes 2" thru 8"
Flanged-Raised Face
Page 85
F-918-13
Stainless Steel Disc
Sizes 2" thru 12"
Flanged Ends
Page 86
Ductile Iron Body Swing Check Valve
Bronze Trim
Class 150 SWP
285 lb. CWP
F-938-31
Bronze Disc
Sizes 2" thru 12"
Flanged-Raised Face
Page 87
Lead Free Ductile Iron Body Swing Check Valve
316SS Stainless Steel Trim
Class 150 SWP
285 lb. CWP
F-938-33
Stainless Steel Disc
Sizes 2" thru 12"
Flanged-Raised Face
Page 88
Why Ductile Iron? .............. Page 89
How Ductile Iron Compares
to Cast Iron and Cast Steel. . . . . . . Page 90
Construction Features
........... Page 91
Ductile Iron Valve Specifications .. Page 92
NOTE: Check valves should never be installed immediately adjacent to a pump discharge or change in direction. Check Valves should
be installed downstream from all sources of line turbulence, including fittings and valves, at a minimum of 5x the nominal pipe
diameter (preferably 10x) with straight piping to provide laminar flow.