Bestogages provide API Buttress casing working and reference master gages per API Specification 5B for sizes from 4-1/2 to 20 inches in diameter. All working gages are manufactured and certified using a certified API reference master gage as required by the standard.
| BUTTRESS CASING | ||
| SIZE | T.P.I. | T.P.F. |
| 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 |
Instructions:
1）Implementation of standards：API SPEC 5B：2017
2）Material: GCr15， Measuring surface hardness 60-63HRC;
3）Comes with the calibration certificates traceable to NIM, availiable for Audit.
How to order?
For example:
Pls mark : Working Gauges: 4 1/2 BCSG RING&PLUG, or 4 1/2 BCSGBOX&PIN,
and E-mail to: sales@bestogages.com