Dixon FMG-HN-15-8 1/2" x 1/4" (15 x 8 mm) Reducing Hex Nipple BSP Galv. Malleable Iron
Available
This Dixon reducing hex nipple has an external BSP thread on each end, one larger and one smaller, with a hex section in the middle. It is made from galvanised malleable iron. This page lists 25 size combinations, from 1/4" x 1/8" to 4" x 3".
Dixon describes its galvanised malleable iron BSP fittings as ISO 5922 malleable cast iron, hot dip galvanised to ISO 1461, with ISO 7-1 pipe threads, for general low-pressure air and water at a working pressure of 150 PSI (about 10 bar) (manufacturer-stated). The stainless equivalent is listed under SS16N, and the table shows the paired part number where one exists (manufacturer-stated).
Where this product is used
- Stepping down from a larger female port to a smaller one in air and water pipework (manufacturer-stated).
- Connecting a smaller valve, gauge or fitting to a larger outlet without a separate reducer.
Features
- Reducing hex nipple, male BSP both ends (manufacturer-stated)
- End connection: Male BSP both ends, different sizes (manufacturer-stated)
- Body: ISO 5922 malleable cast iron, hot dip galvanised to ISO 1461 (manufacturer-stated)
- Working pressure: 150 PSI (about 10 bar), for general low-pressure air and water (manufacturer-stated)
- Sizes on this page: 1/4" x 1/8" to 4" x 3" (25 combinations)
Common specifications
| Specification | Detail |
|---|---|
| End connection | Male BSP both ends, different sizes |
| Body material | ISO 5922 malleable cast iron (manufacturer-stated) |
| Coating | Hot dip galvanised, ISO 1461 (manufacturer-stated) |
| Thread standard | ISO 7-1 pipe threads (BSP) (manufacturer-stated) |
| Design | Generally in accordance with AS3673 (manufacturer-stated); slight variations may occur where the manufacturer's dimensions are used |
| Working pressure | 150 PSI (about 10 bar) |
| Application | General low-pressure air and water |
Key specifications
| Dixon part number | Thread sizes (large x small) | Nominal size (catalogue) | Same size in 316 stainless steel (catalogue) |
|---|---|---|---|
| FMG-HN-8-6 | 1/4" x 1/8" | 8 x 6 mm | SS16N00806 |
| FMG-HN-10-6 | 3/8" x 1/8" | 10 x 6 mm | SS16N01006 |
| FMG-HN-10-8 | 3/8" x 1/4" | 10 x 8 mm | SS16N01008 |
| FMG-HN-15-8 | 1/2" x 1/4" | 15 x 8 mm | SS16N01508 |
| FMG-HN-15-10 | 1/2" x 3/8" | 15 x 10 mm | SS16N01510 |
| FMG-HN-20-10 | 3/4" x 3/8" | 20 x 10 mm | SS16N02010 |
| FMG-HN-20-15 | 3/4" x 1/2" | 20 x 15 mm | SS16N02015 |
| FMG-HN-25-15 | 1" x 1/2" | 25 x 15 mm | SS16N02515 |
| FMG-HN-25-20 | 1" x 3/4" | 25 x 20 mm | SS16N02520 |
| FMG-HN-32-15 | 1-1/4" x 1/2" | 32 x 15 mm | Not listed |
| FMG-HN-32-20 | 1-1/4" x 3/4" | 32 x 20 mm | SS16N03220 |
| FMG-HN-32-25 | 1-1/4" x 1" | 32 x 25 mm | SS16N03225 |
| FMG-HN-40-15 | 1-1/2" x 1/2" | 40 x 15 mm | Not listed |
| FMG-HN-40-20 | 1-1/2" x 3/4" | 40 x 20 mm | SS16N04020 |
| FMG-HN-40-25 | 1-1/2" x 1" | 40 x 25 mm | SS16N04025 |
| FMG-HN-40-32 | 1-1/2" x 1-1/4" | 40 x 32 mm | SS16N04032 |
| FMG-HN-50-25 | 2" x 1" | 50 x 25 mm | SS16N05025 |
| FMG-HN-50-32 | 2" x 1-1/4" | 50 x 32 mm | SS16N05032 |
| FMG-HN-50-40 | 2" x 1-1/2" | 50 x 40 mm | SS16N05040 |
| FMG-HN-65-50 | 2-1/2" x 2" | 65 x 50 mm | SS16N06550 |
| FMG-HN-80-50 | 3" x 2" | 80 x 50 mm | SS16N08050 |
| FMG-HN-80-65 | 3" x 2-1/2" | 80 x 65 mm | SS16N08065 |
| FMG-HN-100-50 | 4" x 2" | 100 x 50 mm | SS16N10050 |
| FMG-HN-100-65 | 4" x 2-1/2" | 100 x 65 mm | Not listed |
| FMG-HN-100-80 | 4" x 3" | 100 x 80 mm | SS16N10080 |
Selecting the right option
Read the size as large x small: 3/4" x 1/2" has a 3/4" thread on one end and a 1/2" thread on the other. Both ends are male, so each side screws into a female port. If you want a male thread on one side and a female on the other, use a reducing bush. BSP threads do not mate with NPT or metric threads, so confirm the thread on every mating part before you order.
Related products
Related Dixon fittings: Dixon Hex Nipple BSP Galvanised Malleable Iron, Dixon Screwed Reducing Hex Nipple BSP 316 Stainless Steel and Dixon Screwed Reducing Hex Bush Male x Female BSP Galvanised Malleable Iron.
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1/2 x 3/8
Model Number: FMG-HN-15-10
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1/2 x 1/4
Model Number: FMG-HN-15-8
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1 x 1/2
Model Number: FMG-HN-25-15
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1 x 3/4
Model Number: FMG-HN-25-20
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1-1/4 x 1/2
Model Number: FMG-HN-32-15
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1-1/4 x 3/4
Model Number: FMG-HN-32-20
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1-1/4 x 1
Model Number: FMG-HN-32-25
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1-1/2 x 1/2
Model Number: FMG-HN-40-15
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1-1/2 x 3/4
Model Number: FMG-HN-40-20
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1-1/2 x 1
Model Number: FMG-HN-40-25
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1-1/2 x 1-1/4
Model Number: FMG-HN-40-32
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1/4 x 1/8
Model Number: FMG-HN-8-6
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2 x 1
Model Number: FMG-HN-50-25
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2 x 1-1/4
Model Number: FMG-HN-50-32
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2 x 1-1/2
Model Number: FMG-HN-50-40
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2-1/2 x 2
Model Number: FMG-HN-65-50
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3/8 x 1/8
Model Number: FMG-HN-10-6
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3/8 x 1/4
Model Number: FMG-HN-10-8
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3/4 x 3/8
Model Number: FMG-HN-20-10
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3/4 x 1/2
Model Number: FMG-HN-20-15
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3 x 2
Model Number: FMG-HN-80-50
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3 x 2-1/2
Model Number: FMG-HN-80-65
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4 x 2
Model Number: FMG-HN-100-50
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4 x 2-1/2
Model Number: FMG-HN-100-65
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4 x 3
Model Number: FMG-HN-100-80
