VALVULA SPHAERICICA SEDES METALLICA (FUSA)
Conspectus Producti
Valva sphaerica altae pressionis, ex chalybe fabricato, partes sphaerae circa lineam mediam corporis valvae claudit, ut rotatio valvae aperiatur et claudatur. Sigillum in sede valvae chalybis inoxidabilis insertum est. Sedes valvae metallica elastico praedita est. Cum superficies sigillans deteritur vel uretur, sub actione elastici, sedem valvae et sphaeram impelluntur, sigillum metallicum formant. Functionem singularem liberationis pressionis automaticae exhibent: cum pressio medii luminis valvae vim prae-stringendi elastici superat, sedes valvae egressae extra sphaeram retrahitur, effectum liberationis automaticae consequens, et post liberationem pressionis sedes valvae automatice restituitur. Applicatur aquae, solventibus, acidis et gasibus, ut mediis operariis generalibus, sed etiam condicionibus operariis mediorum, ut oxygenio, hydrogenii peroxido, methano et aethyleno, apta est. Bene adhibita est in variis industriis.
Proprietates structurae producti:
1. Omnes partes huius producti sunt fabricae fusae.
2, utendo caule valvulae imo posito, structura obsignationis inversae constituta, ut locus sarcinae firma obsignatio fiat et caulis exsiliat.
3. Sedes valvulae inserta adhibenda est. Anulus toricus post sedem valvulae ponitur ne medium effluat.
Structura Producti
MAGNITUDO EXTERNA PRIMARIA
(GB): PN40
| DN | L | D | D1 | D2 | b | f | n-Φd |
| centum | CCCV | 235 | 190 | CLXII | 24 | 2 | VIII-XVIII |
| 125 | 381 | 270 | 220 | CLXXXVIII | 26 | 2 | VIII-XXVI |
| CL | 403 | trecenti | 250 | 210 | 28 | 2 | VIII-XXVI |
| ducenti | 502 | 375 | 320 | 285 | 34 | 2 | XII-XXX |
| 250 | 568 | 450 | 385 | 345 | 38 | 2 | XII-XXXIII |
| trecenti | DCXLVIII | 515 | 450 | 410 | 42 | 2 | XVI-XXXIII |
| 350 | DCCCLXII | 580 | 510 | 465 | 46 | 2 | XVI-XXXVI |
| quadringenti | DCCCXXXVIII | DCCLX | 585 | 535 | 50 | 2 | XVI-XXXIX |
(GB): PN63
| DN | L | D | D1 | D2 | b | f | n-Φd |
| centum | 406 | 250 | ducenti | CLXII | 30 | 2 | VIII-XXVI |
| 125 | 432 | 295 | 240 | CLXXXVIII | 34 | 2 | VIII-XXX |
| CL | 495 | 345 | 280 | 218 | 36 | 2 | 8-33 |
| ducenti | 597 | 415 | 345 | 285 | 42 | 2 | XII-XXXVI |
| 250 | DCCLXXIII | 47 | quadringenti | 345 | 46 | 2 | XII-XXXVI |
| trecenti | DCCCLXII | 530 | 460 | 410 | 52 | 2 | XVI-XXXVI |
| 350 | DCCCXXVI | DC | 525 | 465 | 56 | 2 | XVI-XXXIX |
| quadringenti | 902 | DCCLXX | 585 | 535 | 60 | 2 | XVI-XLII |
(GB): PN100
| DN | L | D | D1 | D2 | b | f | n-Φd |
| centum | 432 | 265 | 210 | CLXII | 40 | 2 | VIII-XXX |
| 125 | 508 | CCCXV | 250 | CLXXXVIII | 40 | 2 | 8-33 |
| CL | 559 | 355 | 290 | 218 | 44 | 2 | XII-XXXIII |
| ducenti | DCCLX | 430 | 360 | 285 | 52 | 2 | XII-XXXVI |
| 250 | DCCLXXXVII | 505 | 430 | 345 | 60 | 2 | XII-XXXIX |
| trecenti | DCCCXXXVIII | 585 | quingenti | 410 | 68 | 2 | XVI-XLII |
| 350 | DCCCLXXXIX | DCLV | 560 | 465 | 74 | 2 | XVI-XLVIII |
| quadringenti | 991 | DCCXV | DCXX | 535 | 78 | 2 | XVI-XLVIII |
(ANSI): 300 librae
| DN | L | D | D1 | D2 | b | f | n-Φd |
| centum | CCCV | 255 | ducenti | 157.2 | 32.2 | 2 | VIII-XXII |
| 125 | 381 | 280 | 235 | 185.7 | 35.4 | 2 | VIII-XXII |
| CL | 403 | 320 | 269.9 | 215.9 | 37 | 2 | XII-XXII |
| ducenti | 502 | 380 | 330.2 | 269.9 | 41.7 | 2 | XII-XXVI |
| 250 | 568 | 445 | 387.4 | 323.8 | 48.1 | 2 | XVI-XXX |
| trecenti | DCXLVIII | 520 | 450.8 | 381 | 51.3 | 2 | XVI-XXXIII |
| 350 | DCCCLXII | 585 | 514.4 | 412.8 | 54.4 | 2 | XX-XXXIII |
| quadringenti | DCCCXXXVIII | DCCL | 571.5 | 469.9 | 57.6 | 2 | XX-XXXVI |
(ANSI): 600 librae
| Diameter nominalis | L | D | D1 | D2 | b | f | n-Φd | |
| 4″ | centum | 432 | 275 | 215.9 | 157.2 | 45.1 | 7 | VIII-XXV |
| Quinque unciae | 125 | 508 | 330 | 266.7 | 185.7 | 51.5 | 7 | VIII-XXX |
| Sex unciae | CL | 559 | 355 | 292.1 | 215.9 | 54.7 | 7 | XII-XXIX |
| Octo unciae | ducenti | DCCLX | 420 | 349.2 | 269.9 | 62.6 | 7 | XII-XXXII |
| Decem unciae | 250 | DCCLXXXVII | 510 | 431.8 | 323.8 | 70.5 | 7 | XVI-XXXV |
| Duodecim unciae | trecenti | DCCCXXXVIII | 560 | 489 | 381 | 73.7 | 7 | XX-XXXV |
| 14″ | 350 | DCCCLXXXIX | DCV | 527 | 412.8 | 76.9 | 7 | XX-XXXVIII |
(ANSI): 900LB
| Diameter nominalis | L | D | D1 | D2 | b | f | n-Φd | |
| 4″ | centum | 432 | 290 | 235 | 157.2 | 51.5 | 7 | 8-32 |
| Quinque unciae | 125 | 508 | 350 | 279.4 | 185.7 | 57.8 | 7 | 8-36 |
| Sex unciae | CL | 559 | 380 | 317.5 | 215.9 | 62.6 | 7 | XII-XXXII |
| Octo unciae | ducenti | DCCLX | 470 | 393.7 | 269.9 | 70.5 | 7 | XII-XXXVIII |
| Decem unciae | 250 | DCCLXXXVII | 545 | 469.9 | 323.8 | 76.9 | 7 | XVI-XXXVIII |
| Duodecim unciae | trecenti | DCCCXXXVIII | DCX | 533.4 | 381 | 86.4 | 7 | XX-XXXVIII |
| 14″ | 350 | DCCCLXXXIX | DCXL | 558.8 | 412.8 | 92.8 | 7 | XX-XLII |
| 16″ | quadringenti | 991 | DCCV | DCXVI | 469.9 | 95.9 | 7 | XX-XLV |










