Data Sheet

Rotary Valve Selection Guide
D102550X012
Product Bulletin
40:002
January 2013
13
Alloy Valve Guidelines
 Emerson Process Managem ent expertise has combined its knowledge of metals and foundry
techniques with valve user experience in creating high alloy valves that fight corrosion
successfully.
 Guidelines have been developed to help the valve user specify alloy valves correctly.
Techniques have also been imp lem ented that verify a foundry's ability to cast alloy valves
properly and has established stringent specifications that guide the foundry in providing
quality results.
 Valve user guidelines include: Avoid the use of alloy tradenames, Don't specify wrought for
cast, Forego non-destructive testing.
 Steps used to qualify a foundry include: Weldability tests to gauge the foundry's ability to pour
alloy materials, Dedicating casting patterns solely to high-alloy service.
 Stringent specifications developed by Emerson Process Management include: Raw Material
Composition and Quality, Heat Qualification, Visual Inspection, Weld Repair, Heat Treatment,
and Nondestructive Testing.