Orifice (Calibrated Bore)
Short body element with a calibrated central bore to restrict flow rate.
Manufacturing Scope
Orifice (Calibrated Bore) is a Valve Parts family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀4–20 mm, lengths 3–8 mm, standard material Stainless Steel (also steel, stainless, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request an instant quote with the code you need.
The family is machined from ⌀20 mm bar stock; its longest variant is VALB-ORF-18 at 8 mm. Besides turning, the family requires axial drilling (⌀0.5–5 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-ORF-03: 3 mm long at ⌀4 mm, L/D 0.8. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to h6 tolerance; the smallest is VALB-ORF-03 (⌀4 mm) and the largest VALB-ORF-18 (⌀20 mm). The family includes bored variants. Custom sizes, tolerances or materials are produced to the part code on request.
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 | Dia ⌀ | Length | Feature | Tolerance | Std | Unit price |
|---|---|---|---|---|---|---|
| VALB-ORF-03 | ⌀4 | 3 mm | ⌀0.5 | h6 | calibrated bore 0.3 | 25.15 ₺ |
| VALB-ORF-04 | ⌀5 | 3 mm | ⌀0.5 | h6 | calibrated bore 0.5 | 25.64 ₺ |
| VALB-ORF-05 | ⌀6 | 4 mm | ⌀0.8 | h6 | calibrated bore 0.8 | 27.30 ₺ |
| VALB-ORF-06 | ⌀8 | 4 mm | ⌀1 | h6 | calibrated bore 1.0 | 28.50 ₺ |
| VALB-ORF-08 | ⌀10 | 5 mm | ⌀1.5 | h6 | calibrated bore 1.5 | 31.17 ₺ |
| VALB-ORF-10 | ⌀12 | 5 mm | ⌀2 | h6 | calibrated bore 2.0 | 32.77 ₺ |
| VALB-ORF-12 | ⌀14 | 6 mm | ⌀2.5 | h6 | calibrated bore 2.5 | 36.13 ₺ |
| VALB-ORF-14 | ⌀16 | 6 mm | ⌀3 | h6 | calibrated bore 3.0 | 38.22 ₺ |
| VALB-ORF-16 | ⌀18 | 7 mm | ⌀4 | h6 | calibrated bore 4.0 | 42.44 ₺ |
| VALB-ORF-18 | ⌀20 | 8 mm | ⌀5 | h6 | calibrated bore 5.0 | 47.27 ₺ |
Stainless Steel · for 100 pcs · estimated unit price, valid 7 days · excl. VAT · Contact us for a firm quote.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. For custom sizes/tolerances, contact us with the part code.
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