Blue Acetal (POM) Valve Trim, CNC Turned and Slotted
Blue acetal POM valve inner trim: 1.380 in OD, 15.00 in length at ±0.001 in, 13.42 degree cone, elliptical side slots, Ø38 mm through bore, 100 percent inspected. Quote within 24 hours.
General Industrial Components
A long blue acetal (Acetron GP) valve trim element turned and slotted from extruded bar: 1.380 in OD, 381.1 mm length at ±0.025 mm, a 13.42 degree nose cone, elliptical side windows, and a Ø38 mm through bore, burr free inside and out.
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Key Specifications
| Parameter | KGL Capability |
|---|---|
| Material | Blue acetal copolymer POM, Acetron GP Blue, extruded bar |
| Process | CNC turning of OD, cones, and chamfers; milling of elliptical side windows and locating faces; through drilling of Ø38 mm bore; deburring |
| Key dimensions | OD 1.380 in (about Ø35.05 mm); total length 381.1 ±0.025 mm; sections 2.875 / 2.687 / 1.687 in |
| Geometry | Nose cone 13.42 degrees; chamfers 45 and 70 degrees; Ø38 mm through bore |
| Tolerances | Imperial drawing, decimal X.XXX ±0.005 in |
| Surface | Smooth and burr free inside and out (customer acceptance criterion) |
| Inspection | Caliper and micrometer on OD and lengths; internal gauge on bore; 100 percent check |
| Tolerance | ±0.005 mm standard on metals, engineering plastics, and carbon fiber composite |
| Certifications | ISO 9001:2015, ISO 13485:2016, AS9100D |
| Capacity | 100+ CNC machines including 11 five-axis centers |
| MOQ | No MOQ; 1-piece prototypes supported |
| Quote | Within 24 hours for complete 2D/3D files |
About This Part
Inside a fluid valve, this trim element reciprocates and seals, so its surface quality is the customer's acceptance criterion: smooth, burr free plastic, inside and out. It is turned from Acetron GP blue acetal extruded bar on a CNC lathe for the profile and cones, then milled for the elliptical side windows and locating faces, with the Ø38 mm through bore drilled clear.
The length discipline is strict: 381.1 ±0.025 mm over a 15 inch plastic part, with section lengths at 2.875, 2.687, and 1.687 in and decimal callouts at ±0.005 in. The nose cone runs at 13.42 degrees with 45 and 70 degree chamfers behind it, geometry that seats the trim against the seat ring without slamming.
Blue acetal brings self lubrication, wear resistance, and chemical resistance, and the color identifies the part inside the valve body. Lengths and diameters are checked on caliper and micrometer, the bore with an internal gauge, and every piece leaves deburred and clean.
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Why Machine It at KGL
Five-Axis Fleet
100+ CNC machines including 11 five-axis centers run complex geometry in single setups, so tolerances do not stack up across refixturing.
Verified Accuracy
±0.005 mm standard on metals, plastics, and carbon fiber composite, verified on Hexagon and Zeiss CMMs (0.0015 mm accuracy).
Fast Prototypes
Engineering feedback with every quotation; prototype parts typically machined in 15 to 25 days.
One Supplier, End to End
Material sourcing, machining, heat treatment coordination, finishing, CMM inspection and export packaging under one roof.
Part-Specific Advantages
- Acetron GP blue acetal: self lubricating, wear and chemical resistant, color coded
- 381.1 ±0.025 mm total length held on a long, slender plastic part
- 13.42 degree nose cone with 45 and 70 degree chamfers for controlled seating
- Elliptical side windows milled clean for flow and locating
- Ø38 mm through bore, drilled clear and deburred
- Burr free inside and out, 100 percent inspected against imperial callouts
Typical Applications
- Inner trim and spool elements for fluid control valves
- Reciprocating valve components in water treatment equipment
- Sliding seal elements on process machinery
Commercial Terms
| Commercial | Detail |
|---|---|
| MOQ | No MOQ; 1-piece prototype supported |
| Quote | Within 24 hours for complete 2D/3D files |
| Terms | EXW / FOB Shenzhen |
| Certifications | ISO 9001:2015 |
| Packaging | Individual bubble wrap, export carton or wooden case |
Common Questions
Why blue acetal for a valve trim?
Blue acetal is the standard color code for potable water valve components and keeps the mechanical virtues of POM: low friction, high wear life, and dimensional stability in wet service. The color also makes the part identifiable inside the body.
How do you hold ±0.025 mm on a 15 inch plastic part?
Plastics move with temperature, so the bar is conditioned, cutting heat is controlled with sharp tooling and light finish passes, and length is gauged at room temperature. The 100 percent check happens after the part has settled.
Can you run this trim in other colors or grades?
Yes, acetal comes in natural, black, and other colors, and glass filled grades are available where stiffness matters more than glide.
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