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- 国产斯托茨非标定制螺纹规
- GSG石油螺纹规│API量规
- GSG美制螺纹规│美标螺纹规
- GSG美国精密量规│进口量仪
- GSG螺纹指示规│螺纹量仪
- GSG美国倒角量规│锪孔量规
- GSG美国进口管螺纹量规
- API 5B石油管线管LP螺纹规
- API 5B石油套管短圆CSG螺纹规
- API 5B偏梯扣油管BCSG螺纹规
- API 5B油管TBG│UPTBG螺纹规
- API 7-2 数字型NC螺纹量规
- API 7-2 正规型REG螺纹量规
- API 7-2 贯眼型FH螺纹量规
- API 7-2 内平型IF螺纹量规
- Sharp Vee螺纹规(VR塞规)
- 背压阀HBPV螺纹规BPV塞规
- 海克斯康(Hexagon)测量仪器
- 苏州甪直三丰Mitutoyo量具
- 昆山德国Fischer菲希尔仪器
- 张家港英国易高Elcometer
- 江阴美国GE超声波探伤仪
- 无锡奥林巴斯超声波探伤仪
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- 太仓Spectronics无损检测
- 常熟Bruker布鲁克光谱仪
- 美国赛普斯SCIAPS光谱仪
- 镇江美国磁通Magnaflux
- Western Instrument仪器
- 嘉兴南通友联无损检测仪器
- 绍兴G.A.L. Gage焊接量规
- 宁波瑞士Maurer Magnetic
- 苏州标样│无损探伤试块
- 盐城建湖BAQ GmbH硬度计
- SIC MARKING西刻打标机
- Clark硬度计│Sun-Tec
- 日本future-tech硬度计
- 美国King便携式布氏硬度计
- 美国Rex Gauge邵氏硬度计
- 进口Ames便携式洛氏硬度计
- 美国Hemco螺纹规中国总代理
- PMC Lone Star石油量规
- Vermont螺纹规│VTG螺纹规
- GageAssembly螺纹规代理商
- Threadmaster进口螺纹规
- Westport螺纹规│硬度块
- Threadcheck螺纹规│三线规
- 美国Mueller Gage沟槽量仪
- 德国Kroeplin内外径卡规
- 美国环球Universal Punch
- 东莞DULIANG光学检测仪器
- 德国Schwenk进口内径量仪
- 宝石石油量规│API石油规
- 美国Allen Gauge单项仪
- Fowler 测量仪器│福勒量具
- 美国SPI通用测量量具
- Micro-Vu影像测量仪
- 苏州测量仪器MRO一站式供应商
BTC Screw Threads for American Petroleum Institute-API
摘要:merican Petroleum Institute (API) oil field screw thread gages are available as working screw thread gages or master screw thread gages.
Screw Threads for American Petroleum Institute-API

Because connection failure in the oil field industry can be extreemly expensive to repair; the connections made on oil field drill pipes working thousands of feet below ground or ocean are critical. To assure against screw thread failure while working in these rigourous conditions the screw threads are made to extreem and exacting American Petroleum Institute (API) standards. Controlling these standards is the American Petroleum Institute (API) which licenses the use of a Monogram. The Monogram is applied by licenced screw thread gage makers as an oil field industry seal of approval to the screw thread gages they manufacturer.
American Petroleum Institute (API) oil field screw thread gages are available as working screw thread gages or master screw thread gages.
API Master Screw Thread Gages
American Petroleum Institute (API) oil field Master screw thread gages can be owned by anyone. Depending on your use for the master gage the certification will be important. If you intend to work as a calibration laboratory and certify other peoples working gages it will be important to have your master API screw thread gages directly certified by the National Institute of Standards Technology. If your intended use of the API gages is to verify your own in-house working gages, then certification against a certified set of master gages is acceptable. The closer to NIST the less error is accumulated, but the closer to NIST more cost and lead-time is required.
More Information about Screw Thread Types
BTC Buttress Casing per API Spec 5B
CSG Round Casing per API Spec 5B
LP Line Pipe per API Spec 5B
NC Numbered Connections per API Spec 7-2
NU Non-Upset Tubing per API Spec 5B
REG Regular Rotary per API Spec 7
TBG (EU/EUE/EUT) External Upset Tubing per API Spec 5B
http://www.gsgage.com.cn
Working Ring or Working Plug | ||
Size (in Inches) | T.P.I. (Threads per Inch) | T.P.F. (Taper per Foot) |
4-1/2 | 5 | 3/4 |
5 | 5 | 3/4 |
5-1/2 | 5 | 3/4 |
6-5/8 | 5 | 3/4 |
7 | 5 | 3/4 |
7-5/8 | 5 | 3/4 |
8-5/8 | 5 | 3/4 |
9-5/8 | 5 | 3/4 |
10-3/4 | 5 | 3/4 |
11-3/4 | 5 | 3/4 |
13-3/8 | 5 | 3/4 |
16 | 5 | 1 |
18-5/8 | 5 | 1 |
20 | 5 | 1 |