Waitohu Hononga Waihiko Waihiko Toa BSPT Hononga / Kaiwhakauru
Whakataki Hua
Tohu toa BSPT tūhono i te iti rawa he BSPT miro tane, wahine ranei hono mutunga i roto i te tūhono, BSPT he British Standard Pipe Taper miro, he rite ki te miro NPT.
Ko te miro BSPT kei raro iho nga ahuatanga:
1. He papatahi te tapahi o nga pakiaka me nga pito o te miro
2. 55° koki miro
3. Ko te koki i waenganui i te taper me te tuaka pokapū o te miro paipa he 1°47'24”
4. Ka inehia te miro mo ia inihi.
He rite te mahi o nga miro Paipa Paerewa o Ingarangi ki nga miro NPT, he rite ano te miro, ko te koki miro BSPT he 55°， Ko te koki miro NPT he 60°, he rite ano te pitch me te diameter, engari kaore e rereke.Ko nga rahinga miro whakatairite rarangi tirohia i raro nei.
| Rahi | NPT miro (60°) | Miro BSPT（55°） | ||||||
| miro | turanga OD | turanga | miro | miro | turanga OD | turanga | miro | |
| -2 | Z1/8″x27 | 10.242 | 4.102 | 27 | R1/8″x28 | 9.728 | 4 | 28 |
| -4 | Z1/4″x18 | 13.616 | 5.785 | 18 | R1/4″x19 | 13.157 | 6 | 19 |
| -6 | Z3/8″x18 | 17.055 | 6.096 | 18 | R3/8″x19 | 16.662 | 6.4 | 19 |
| -8 | Z1/2″x14 | 21.224 | 8.128 | 14 | R1/2″x14 | 20.955 | 8.2 | 14 |
| -12 | Z3/4″x14 | 26.569 | 8.618 | 14 | R3/4″x14 | 26.441 | 9.5 | 14 |
| -16 | Z1″x11.5 | 33.228 | 10.16 | 11.5 | R1″x11 | 33.249 | 10.4 | 11 |
| -20 | Z1.1/4″x11.5 | 41.985 | 10.668 | 11.5 | R1.1/4″x11 | 41.91 | 12.7 | 11 |
| -24 | Z1.1/2″x11.5 | 48.054 | 10.668 | 11.5 | R1.1/2″x11 | 47.803 | 12.7 | 11 |
| -32 | Z2″x11.5 | 60.092 | 11.065 | 11.5 | R2″x11 | 59.614 | 15.9 | 11 |
Ko nga miro tane BSPT e hiri ana ki nga miro o te wahine BSPT pumau, ko te whakamahi i te hiri miro penei i te riipene hiri PTFE e taunaki ana mo te tane BSPT ki nga hononga wahine BSPT.
BSPT whāurutau ranei BSPT tūhono he rongonui, te nuinga whakamahia te reira i roto i Japan, Haina, tata kore whakamahia i roto i Amerika.NPT urutau, NPT tūhono ranei he rongonui rawa, kei te whakamahia te nuinga i roto i Amerika.
Me pehea te tautuhi he miro BSPT me te whakatau i te rahi o te miro?
1. Tirohia te miro, he taper ranei, whakamahia he caliper ranei te ine i te diameter o waho o te miro o waho, te iti ranei o te diameter o te miro o roto he rereke te roa o te waahi ka kitea he rereke te diameter ka tutuki ki te 1:16 taper, ka whakamahi tika ranei i te 1:16 mehua tohu.
2. Whakamahia he caliper ine i te diameter o te turanga raina turanga.Inehia te diameter o te miro ki te kaitapa ID/OD, ka inehia te diameter miro o waho ki te diameter o waho, me te pupuri i te kaitapa ki te koki paku mo te panui tika ake, na te mea ka inehia te miro o roto ki te diameter o roto, ka mau ki te taha te miro mo te panui wahine tika ake.
3. Inehia nga miro mo ia inihi (TPI) me te pitch ranei.I te mea ko te ine ine te whanui me te whakamahi i te ine piro hononga, whakamatauhia nga momo miro rereke kia kitea ra ano te pai rawa atu, uru atu ki te maha o nga miro ka taea, ka nui ake nga miro kua uru, ka tika ake te panui.Puritia te urunga/hononga me te ine puri miro ki runga ki te marama, rapua nga aputa i waenga i te ine me te miro, he maamaa ake te kite i runga i te urunga/honohono miro o waho atu i te urunga/honohono miro o roto.Te ine tika ranei i te tawhiti o te tihi o nga miro e rua
Ko te whakakikorua o te Winner o nga urutau/tuhono he kore utu o Cr6+, a ko te mahi tiaki waikura i tae ki te 360h kaore he waikura whero, he nui atu i te paerewa noa.
Tau Hua
| BSPT tane |  1T-SP |  1T9-SP |  4T-SP |  4TN-GM | |||
 1BT-SP |  1BT9-SP |  1CT-SP, 1DT-SP |  1CT9-SP, 1DT9-SP |  1JT-SP |  1JT4-SP |  1JT9-SP | |
 1KT-SP |  1NT |  1OT-SP |  1ST-SP |  1ST9-SP | |||
 2TB-SP |  2TB9-SP |  2TB-GSP |  2TJ-SP | ||||
 5T-SP |  5T9-SP |  5TB-SP |  5TB9-SP |  5TN-SP |  AJJT-SP |  AJTJ-SP | |
| BSPT wahine |  5BT |  5BT-WD |  5JT |  5JT9 |  5NT |  5OT | |
 7T |  7T9-PK |  GT-PK |