Throttle Nozzle
Threaded nozzle body with conical inlet and tapering bore that throttles the flow.
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 9 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| VALB-NOZ-05 | 9.2 | 13 | M5 · SW8 · taper · ⌀0.8 | 6g | M5 threaded, AF8 |
| VALB-NOZ-06 | 11.5 | 16 | M6 · SW10 · taper · ⌀1 | 6g | M6 threaded, AF10 |
| VALB-NOZ-08 | 15 | 20 | M8 · SW13 · taper · ⌀1.5 | 6g | M8 threaded, AF13 |
| VALB-NOZ-14 | 16 | 28 | M12 · taper · knurl · ⌀3 | 6g | M12 threaded, knurled cap |
| VALB-NOZ-16 | 18 | 32 | M14 · taper · knurl · ⌀3.5 | 6g | M14 threaded, knurled cap |
| VALB-NOZ-10 | 19.6 | 24 | M10 · SW17 · taper · ⌀2 | 6g | M10 threaded, AF17 |
| VALB-NOZ-12 | 19.6 | 28 | M12 · SW17 · taper · ⌀2.5 | 6g | M12 threaded, AF17 |
| VALB-NOZ-18 | 20 | 36 | M16 · taper · knurl · ⌀4.5 | 6g | M16 threaded, knurled cap |
| VALB-NOZ-20 | 20 | 38 | M16 · taper · ⌀5 | 6g | M16 threaded, high flow |
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
Throttle Nozzle is a Valve Parts family precision-turned on a Goodway SW-20, covering 9 variants — diameters ⌀9.2–20 mm, lengths 13–38 mm, standard material Brass (also steel, stainless steel 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 ⌀20 mm bar stock; its longest variant is VALB-NOZ-20 at 38 mm. Besides turning, the family requires thread turning (7 sizes from M5 to M16), hex flat milling (AF 8–17), taper turning, knurling and axial drilling (⌀0.8–5 mm). All of it is completed in a single setup, without the part leaving the machine.
The variant with the highest length-to-diameter ratio is VALB-NOZ-20: 38 mm long at ⌀20 mm, L/D 1.9. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to 6g tolerance; the smallest is VALB-NOZ-05 (⌀9.2 mm) and the largest VALB-NOZ-20 (⌀20 mm). The family includes threaded, hex-drive, tapered, knurled, bored, 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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