Thread Profile Gages
Thread form accuracy is important if two connections are to make-up properly. Using a Thread Profile Gage provides a quick check of the thread to ensure that the form is correct. The Thread Profile should be used on every connection to ensure the first imperfect thread was deburred fully.
Thread form is defined as its profile in an axial plane for a length of one pitch. Most importantly, verifying thread form is a recommended inspection for API connections and ensures form accuracy.
FYOU PMEC supply precision tapered thread profile gages for the quick identification of product thread forms. Specify the connection which is to be inspected when ordering. Special profiles will be quoted upon request.
Tubing & Casing Thread Inspection
| Model | Connection Type | TPI, TPF, Thread Form |
| TPG-RTC-8R | API 8-Round Casing, Tubing & Drill Pipe | 8 TPI , 3/4″ TPF, 8 Round |
| TPG-RTC-10R | API 10-Round Tubing | 10 TPI , 3/4″ TPF, 10 Round |
| TPG-5BTC75-INT | API Buttress Casing, Internal, 4-1/2″- 13-3/8″ | 5 TPI , 3/4″ TPF, BTC, Internal |
| TPG-5BTC75-EXT | API Buttress Casing, External, 4-1/2″- 13-3/8″ | 5 TPI , 3/4″ TPF, BTC, External |
| TPG-5BTC1-INT | API Buttress Casing, Internal, 16″ – 20″ | 5 TPI , 1″ TPF, BTC, Internal |
| TPG-5BTC1-EXT | API Buttress Casing, External, 16″ – 20″ | 5 TPI , 1″ TPF, BTC, External |
Rotary Shouldered Connection Thread Inspection
| Model | Connection Type | TPI, TPF, Thread Form |
| TPG-4-1.5-76 | 2-3/8″ – 3-1/2″ P.A.C. Connections | 4 TPI, 1.5″ TPF, V-0.076 |
| TPG-4-2-50 | 6-5/8″ API REG | 4 TPI, 2” TPF, V-0.050 |
| 5-1/2″ & 6-5/8″ API Full Hole | ||
| TPG-4-2-38 | 4″ API Full Hole, | 4 TPI, 2” TPF, V-0.038R |
| Xtra Hole, 2-3/8″ – 6-5/8″ Internal Flush | ||
| API Numbered Connections #23 – #50 | ||
| TPG-4-3-38 | API Numbered Connections #56 – #77 | 4 TPI, 3″ TPF, V-0.038R |
| TPG-4-3-50 | 5-1/2″, 7-5/8″, & 8-5/8″ API REG | 4 TPI, 3″ TPF, V-0.050 |
| TPG-5-3-40 | 2-3/8″- 4-1/2″ API REG | 5 TPI, 3” TPF, V-0.040 |
| 2-7/8″, 3-1/2″, 4-1/2″ API Full Hole | ||
| TPG-6-1.5-55 | API Numbered Connections #10, #12, #13, #16 | 6 TPI, 1.5” TPF, V-0.055 |
| M.T. (Macaroni Tubing) | ||
| TPG-3-1.25-84 | 2-3/8″ – 3-1/2″ Hughes Slimline H-90 | 3 TPI, 1.25″ TPF, 90-V-0.084 |
| TPG-3.5-2-50 | 3-1/2″- 6-5/8″ Hughes H-90 | 3.5 TPI, 2″ TPF, 90-V-0.050 |
| TPG-3.5-3-50 | 7-5/8″- 8-5/8″ Hughes H-90 | 3.5 TPI, 3″ TPF, 90-V-0.050 |
| TPG-6-2-32 | 2-3/8″ – 2-7/8″ Hughes External Flush | 6 TPI, 2″ TPF, V-0.032 |