Needle Valve Tip
Needle valve element providing fine flow throttling with a slender conical tip.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 10 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| VALA-NDL-03 | 3 | 18 | taper | h7 | 15° needle cone |
| VALA-NDL-04 | 4 | 22 | taper | h7 · ⌀4: 0/−0.012 | 15° needle cone |
| VALA-NDL-05 | 5 | 26 | taper | h7 · ⌀5: 0/−0.012 | 15° needle cone |
| VALA-NDL-06 | 6 | 30 | taper | h7 · ⌀6: 0/−0.012 | 18° needle cone |
| VALA-NDL-06T | 6 | 36 | M6 · taper | 6g | M6 threaded adjusting needle |
| VALA-NDL-08 | 8 | 34 | taper | h7 · ⌀8: 0/−0.015 | 18° needle cone |
| VALA-NDL-08T | 8 | 42 | M8 · taper | 6g | M8 threaded adjusting needle |
| VALA-NDL-10 | 10 | 38 | taper | h7 · ⌀10: 0/−0.015 | 20° needle cone |
| VALA-NDL-12 | 12 | 42 | taper | h7 · ⌀12: 0/−0.018 | 20° needle cone |
| VALA-NDL-14 | 14 | 46 | taper | h7 · ⌀14: 0/−0.018 | 20° needle cone |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Needle Valve Tip is a Valve Parts family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀3–14 mm, lengths 18–46 mm, standard material Stainless Steel (also steel, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀14 mm bar stock; its longest variant is VALA-NDL-14 at 46 mm. Besides turning, the family requires thread turning (M6, M8) and taper turning. All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is VALA-NDL-03: 18 mm long at ⌀3 mm, a length-to-diameter ratio of 6.0. A part this slender needs tailstock support on a conventional lathe. On a sliding-head lathe the guide bushing holds the bar right next to the cutting edge, so the part is machined without a centre.
Variants are machined to h7, 6g tolerance classes; the smallest is VALA-NDL-03 (⌀3 mm) and the largest VALA-NDL-14 (⌀14 mm). The family includes threaded, tapered, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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