ISO 228-1 threaded fittings
ISO 228-1 threaded coupling
An internally parallel-threaded coupling for joining two male ends. Sizes and materials are listed separately in the table.
- Material
- AISI 304 / A2 · AISI 316 / A4
- Thread / standard
- ISO 228-1
Parallel threads: sealing is not made on the threads alone. Specify the joint sealing arrangement.
Technical configuration
Original illustrative drawing. Not to scale; use the documented variant dimensions for selection.
Variants and dimensions
| Material | d (") | d2 (mm) | l (mm) | RFQ |
|---|---|---|---|---|
| AISI 304 / A2 | 1/8" | 10.2 | 18 | |
| AISI 316 / A4 | 1/8" | 10.2 | 18 | |
| AISI 304 / A2 | 1/4" | 13.7 | 20 | |
| AISI 316 / A4 | 1/4" | 13.7 | 20 | |
| AISI 304 / A2 | 3/8" | 17.2 | 21 | |
| AISI 316 / A4 | 3/8" | 17.2 | 21 | |
| AISI 304 / A2 | 1/2" | 21.3 | 25 | |
| AISI 316 / A4 | 1/2" | 21.3 | 25 | |
| AISI 304 / A2 | 3/4" | 26.9 | 30 | |
| AISI 316 / A4 | 3/4" | 26.9 | 30 | |
| AISI 304 / A2 | 1" | 33.7 | 34 | |
| AISI 316 / A4 | 1" | 33.7 | 34 | |
| AISI 304 / A2 | 1"1/4 | 42.4 | 36 | |
| AISI 316 / A4 | 1"1/4 | 42.4 | 36 | |
| AISI 304 / A2 | 1"1/2 | 48.3 | 38 | |
| AISI 316 / A4 | 1"1/2 | 48.3 | 38 | |
| AISI 304 / A2 | 2" | 60.3 | 42 | |
| AISI 316 / A4 | 2" | 60.3 | 42 | |
| AISI 304 / A2 | 2"1/2 | 83.0 | 48 | |
| AISI 316 / A4 | 2"1/2 | 83.0 | 48 | |
| AISI 304 / A2 | 3" | 88.9 | 50 | |
| AISI 316 / A4 | 3" | 88.9 | 50 |
Technical documentation and supply
Specify the application and required documentation. Dimensions not shown here and supply availability are confirmed for the selected configuration.
B2B / RFQ
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ISO 228-1 threaded coupling
