British Standard Pipe Parallel (BSPP)
It-tarf maskili għandu 300 siġġu, li l-imnieħer għax-xejn tat-tidwir femminili jagħmel is-siġill bih.
Nota: Għalkemm it-tarf maskili huwa komparabbli mal-maskil Nazzjonali Amerikan Pipe Straight Mechanical (NPSM) maskili, dawn ma jistgħux jinbidlu, minħabba l-pitches tal-ħajt differenti tagħhom.
Daqs tal-pulzier | Daqs tas-sing | Daqs tal-Ħjut | Thread Male OD (in) | Ħjut femminili OD (in) | ||
1⁄8 | -2 | 1⁄8- 28 | 3⁄8 | 0.38 | 11⁄32 | 0.35 |
1⁄4 | -4 | 1⁄4- 19 | 33⁄64 | 0.52 | 15⁄32 | 0.47 |
3⁄8 | -6 | 3⁄8- 19 | 21⁄32 | 0.65 | 19⁄32 | 0.60 |
1⁄2 | -8 | 1⁄2- 14 | 13⁄16 | 0.82 | 3⁄4 | 0.75 |
5⁄8 | -10 | 5⁄8- 14 | 7⁄8 | 0.88 | 13⁄16 | 0.80 |
3⁄4 | -12 | 3⁄4- 14 | 11⁄32 | 1.04 | 31⁄32 | 0.97 |
1 | -16 | 1 - 11 | 15⁄16 | 1.30 | 17⁄32 | 1.22 |
11⁄4 | -20 | 11⁄4- 11 | 121⁄32 | 1.65 | 19⁄16 | 1.56 |
11⁄2 | -24 | 11⁄2- 11 | 17⁄8 | 1.88 | 125⁄32 | 1.79 |
2 | -32 | 2 - 11 | 211⁄32 | 2.35 | 21⁄4 | 2.26 |
