Gas Medium Stainless Steel 316 Ferrule Nut Fittings 1/4 Male NPT
Installation instructions
AFK ferrule joint can be installed quickly, easily and reliably with hands-on tools.
Safety precautions
Do not drain the system by loosening the union nut or by plugging the union.
Do not install or tighten connectors when there is pressure in the system.
Make sure the ferrule is against the shoulder of the ferrule body before tightening the nut.
When installing for the first time, use the correct clearance gauge to ensure adequate tightening.
Always use the correct thread sealant on tapered pipe threads.
Do not mix the ferrule, ferrule, nut and joint body made of different materials or by different manufacturers.
Do not rotate the joint body. Instead, fix the joint body and rotate the nut.
Avoid unnecessary disassembly of unused joints.
Only use long reducing joint in AFK internal thread termination.
| Ferrule nut (British system) | |||||
| Basic order model |
T Casing outer diameter |
F | L | ||
| inch | mm | inch | inch | mm | |
| SS-N-T1 | 1/16 | 1.58 | 5/16 | .31 | 7.87 |
| SS-N-T2 | 1/8 | 3.17 | 7/16 | .47 | 11.93 |
| SS-N-T3 | 3/16 | 4.76 | 1/2 | .47 | 11.93 |
| SS-N-T4 | 1/4 | 6.35 | 9/16 | .50 | 12.70 |
| SS-N-T5 | 5/16 | 7.93 | 5/8 | .53 | 13.46 |
| SS-N-T6 | 3/8 | 9.52 | 11/16 | .56 | 14.22 |
| SS-N-T8 | 1/2 | 12.70 | 7/8 | .69 | 17.52 |
| SS-N-T10 | 5/8 | 15.87 | 1 | .69 | 17.52 |
| SS-N-T12 | 3/4 | 19.05 | 1 1/8 | .69 | 17.52 |
| SS-N-T14 | 7/8 | 22.22 | 1 1/4 | .69 | 17.52 |
| SS-N-T16 | 1 | 25.40 | 1 1/2 | .81 | 20.57 |
| SS-N-T20 | 1 1/4 | 31.75 | 1 7/8 | 1.25 | 31.75 |
| SS-N-T24 | 1 1/2 | 38.10 | 2 1/4 | 1.50 | 38.10 |
| SS-N-T32 | 2 | 50.80 | 3 | 2.06 | 52.32 |
| Ferrule nut (British system) | |||
| Basic order model |
T Casing outer diameter |
F | L |
| mm | mm | mm | |
| SS-N-T2M | 2 | 12 | 11.9 |
| SS-N-T3M | 3 | 12 | 11.9 |
| SS-N-T4M | 4 | 12 | 11.9 |
| SS-N-T6M | 6 | 14 | 12.7 |
| SS-N-T8M | 8 | 16 | 13.5 |
| SS-N-T10M | 10 | 19 | 15.1 |
| SS-N-T12M | 12 | 22 | 17.4 |
| SS-N-T14M | 14 | 25 | 17.4 |
| SS-N-T15M | 15 | 25 | 17.4 |
| SS-N-T16M | 16 | 25 | 17.4 |
| SS-N-T18M | 18 | 30 | 17.4 |
| SS-N-T20M | 20 | 32 | 17.4 |
| SS-N-T22M | 22 | 32 | 17.4 |
| SS-N-T25M | 25 | 38 | 20.6 |
| SS-N-T38M | 38 | 60 | 40.6 |
| SS-N-T50M | 50 | 3 inch | 54.0 |
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