CNC Machining of Stainless Steel Motor Driven Valve for the Polymer Industry

A client from the polymer industry approached Precision Machine Company, Inc to CNC machine four stainless steel motor driven valves. Each valve was first CNC milled, turned and then fabricated. After all the necessary TIG welding was completed the valves went through passivation and coating. The valves were made of a combination of materials including 316, 304 and 17-4PH stainless steel. After hydrostatic testing, the valves were put through extensive testing to make sure the met or exceed industry standards.

The 3 inch motor driven polymer valves were then packaged and shipped to the client’s North Carolina location.

For more information about this CNC machining project please see the details below. To learn about our other services please contact Precision Machine Company, Inc. today.

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CNC Machining of Stainless Steel Motor Driven Valve Project Highlights

Product Description
This stainless steel valve is a custom valve as off the shelf products would not work for our client.
Capabilities Applied/Processes
CNC Milling
CNC Turning
Welding: TIG
Hydrostatic Testing
Secondary Operations:
Black Oxide Coating
Equipment Used to Manufacture Part
CNC Mill
CNC Lathe
Welding Equipment
Overall Part Dimensions
Length: 30"
Diameter: Ø12-14"
Tightest Tolerances
Material Used
Inner Body: 316 Stainless Steel
Outer Jacket: 304 Stainless Steel
Stem: 17-4PH Stainless Steel
Seat: Stellite
Packing: PTFE
Max Material Finish
In process testing/inspection performed
Hydrostatic Testing
Inspection Performed:
First Article
Estimated Part Weight
(Approximately) 75 pounds
Industry for Use
Delivery Location
North Carolina
Standards Met
Customer supplied specifications
Welding Per ASME Code B31.3
Product Name
3 Inch Motor Driven Polymer Valve

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