EMERSON Bettis G-Series Spring-Return Pneumatic Material List Manuals & Guides
Summary
This technical guide provides comprehensive material specifications for the Bettis G-Series Spring-Return Pneumatic Valve Actuator. It details every major component—from housing units and cylinder rods to specialized bearings—alongside recommended seal materials and performance coatings. Customers benefit from specific information on nitriding processes and Teflon lining, ensuring accurate part selection and rebuild planning. This resource is essential for mechanical engineers, maintenance technicians, and industrial buyers managing critical fluid power systems.
Page 1 Text Content
Material List ML.GP.01.01 Rev. 0 October 2017
Bettis G-Series Spring-Return Pneumatic Valve Actuator Component Material List
Page Summary Contents For EMERSON Bettis G-Series Spring-Return Pneumatic Material List Manuals & Guides
Manual Details
| Brand | Emerson |
|---|---|
| Pages | 9 |
| File Size | 604.09 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
Why is Nitriding preferred over standard metal plating like chrome or nickel?
Nitriding eliminates pitting, cracking, and flaking because it is an integral surface finish of the component material, offering superior wear and corrosion resistance.
What common materials are used for main structural components like the housing and yoke?
Components such as the Housing, Yoke Cover, Guide Block, and Endcaps typically use Cast Ductile Iron (e.g., ASTM A536 or A395).
How is corrosion resistance improved on the pneumatic cylinder bores?
The standard coating used is Xylan, a proprietary Teflon lining, which provides superior corrosion protection and improves overall seal life.