Product Specifications
|
Parameter |
Value |
|
Dimensional Tolerance (<500mm) |
Tolerance ≤±0.02mm, Center distance ≤±0.02mm |
|
Dimensional Tolerance (>500mm) |
Tolerance ≤±0.04mm, Center distance ≤±0.04mm |
|
Surface Roughness (Fit surfaces / Sealing surfaces) |
Ra≤1.6μm |
|
Surface Roughness (General surfaces) |
Ra≤3.2μm |
|
Surface Finish |
Burrs removed, sharp edges broken, thread holes chamfered, cleaned with passages flushed |
|
Machining Focus |
Sealing surfaces, flow passages, threaded mounting holes |
|
Machinable Materials |
Stainless steel, carbon steel, alloy steel, copper alloy, aluminum alloy |
|
Typical Applications |
Fluid piping valve bodies, hydraulic valves, small specialty valve machining |
Precision Machining for Valve Bodies
We provide CNC machining services specifically for valve bodies. Our factory has both casting and forging capabilities. Many valve body customers give us the entire job. We make the casting or forging blank and then do the precision machining. This is different from pure machining shops. We understand how valve bodies are cast. We know what a good blank looks like for machining. We can help you avoid problems at the blank stage that would cause issues during finishing. Our machining focus is on sealing surfaces, flow passages, and mounting thread holes. These areas determine the sealing performance and service life of the assembled valve.
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Tight Tolerances on Critical Features
The dimensional tolerance for valve bodies under 500 millimeters is plus or minus 0.02 millimeters. The center distance tolerance is also plus or minus 0.02 millimeters. For valve bodies over 500 millimeters, the tolerance is plus or minus 0.04 millimeters. The center distance tolerance is also plus or minus 0.04 millimeters. The sealing surfaces and other fit surfaces have a roughness of Ra 1.6 micrometers or less. The general machined surfaces are held to Ra 3.2 micrometers or less. We remove all burrs and break sharp edges. Thread holes are chamfered. The parts are cleaned and washed.
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Clean Flow Passages
Valve body machining has a special requirement. The flow passages must be free of metal chips and debris. Leftover chips inside the valve body can damage seals or block flow. They can also contaminate the fluid system. We pay special attention to this during our cleaning process. We flush the passages and blow them out with compressed air. We inspect visually to make sure no chips remain. This step is just as important as the dimensional accuracy.
Complete Capability from Blank to Finished Part
Our machining shop has CNC lathes, CNC gantry mills, CNC boring and milling machines, and vertical boring and milling centers. We can handle small threaded valve bodies and medium-sized flanged valve bodies. Our casting shop melts stainless steel, carbon steel, alloy steel, and copper alloy. Our forging shop has a 3000-ton press for high-pressure valve body blanks. You only need to give us one complete drawing. We take care of everything from the blank to the finished valve body. Our warranty is 6 months. We respond to your questions within 48 hours.
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