Orifice Restrictor
Threaded orifice with precision small bore for flow restriction.
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 |
|---|---|---|---|---|---|
| HIDB-ORF-05 | 9.2 | 12 | M5 · SW8 · ⌀0.5 | 6g | orifice 0.5 mm |
| HIDB-ORF-06 | 11.5 | 14 | M6 · SW10 · ⌀0.8 | 6g | orifice 0.8 mm |
| HIDB-ORF-06B | 11.5 | 14 | M6 · SW10 · ⌀1 | 6g | orifice 1.0 mm |
| HIDB-ORF-08 | 15 | 17 | M8 · SW13 · ⌀1.2 | 6g | orifice 1.2 mm |
| HIDB-ORF-08B | 15 | 17 | M8 · SW13 · ⌀1.5 | 6g | orifice 1.5 mm |
| HIDB-ORF-10 | 19.6 | 20 | M10 · SW17 · ⌀1.8 | 6g | orifice 1.8 mm |
| HIDB-ORF-10B | 19.6 | 20 | M10 · SW17 · ⌀2 | 6g | orifice 2.0 mm |
| HIDB-ORF-12 | 19.6 | 22 | M12 · SW17 · ⌀2.5 | 6g | orifice 2.5 mm |
| HIDB-ORF-12B | 19.6 | 22 | M12 · SW17 · ⌀3 | 6g | orifice 3.0 mm |
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
Orifice Restrictor is a Hydraulic & Pneumatic Pistons family precision-turned on a Goodway SW-20, covering 9 variants — diameters ⌀9.2–19.6 mm, lengths 12–22 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 ⌀20 mm bar stock; its longest variant is HIDB-ORF-12 at 22 mm. Besides turning, the family requires thread turning (5 sizes from M5 to M12), hex flat milling (AF 8–17) and axial drilling (⌀0.5–3 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 HIDB-ORF-05: 12 mm long at ⌀9.2 mm, L/D 1.3. 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 HIDB-ORF-05 (⌀9.2 mm) and the largest HIDB-ORF-12B (⌀19.6 mm). The family includes threaded, hex-drive, 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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