Revata Engineering’s Cast Steel Thread Protectors with lifting bails / Lift Nubbins offer the best thread
protection with excellent lifting capabilities to ensure safe handling of Tubular Products, Drill Collars, Drill
Pipes, Downhole Tooling’s etc during manufacturing, shipping and on the rigs.
The Cast Steel Thread Protectors with lifting bails / Lift Nubbins are manufactured from steel castings in
accordance with A.S.T.M.S. No. A27 Grade 60-30 and B.S. 3100 Grade A1. They are heat treated to give
60,000 psi Tensile Strength and 30,000 psi Yield Strength. The heavy-duty bails are suitable for picking
up and laying down a drill collars, drill pipes and other Bottom Hole Assembly components.
The Threads of the Cast Steel Thread Protectors with lifting bails / Lift Nubbins are precision machined to
the requirements set by the A.P.I. Standards. Revata follows a stringent quality inspection procedure.
Each lifting bail leaving our facility is 100% MPI tested and a random sample from each lot size is load
tested to ensure an ultimate quality product is delivered to the customer.
Features and Benefits of the Cast Steel Thread Protectors with Lifting Bails / Lift Nubbins:
Each Cast Steel Thread Protector with lifting bail / Lift Nubbin has been load tested and inspected prior to sale. Due to the rough nature in which drill collars are handled, Revata Engineering recommends that the end users carry out frequent inspection to ensure that the bail is not cracked, threads are not damaged and that proper fitting to the connection is possible.
Note: Cast Steel Thread Protectors with lifting bail / Lift Nubbins should only be used to pick up or lay down one drill collar at the same time.
Lifting Bails for Drill Collars and Drill Pipes:
Size |
SWL (Kgs) |
Proof Load (Kgs) |
| 2-3/8 " – 31/2” EUE (API 5B) Thread Protectors | 2000 | 3000 |
| 2-3/8 " – 2 7/8” RSC ( API 7-2) Thread Protectors | 3000 | 4500 |
| 3 1/2" RSC ( API 7-2) Thread Protectors | 5000 | 7000 |
| 4" – 5 ½" RSC ( API 7-2) Thread Protectors | 7000 | 10000 |
| 6 5/8” – 7 5/8” RSC ( API 7-2) Thread Protectors | 10000 | 15000 |
| 8 5/8” and above RSC ( API 7-2) Thread Protectors | 15000 | 20000 |
Lifting Bails for Drill Collars and Drill Pipes:
OD Range |
Connection Size & Type |
Standard Pin |
Standard Box |
Weight Per Set (lb) |
lb |
lb |
|||
| 3 1/8 - 3½ | N.C 23 | 6 | 6 | 12 |
| 2 3/8 REG | 6 | 6 | 12 | |
| N.C 26 | 6 | 6 | 12 | |
| 2 3/8 IF | 6 | 6 | 12 | |
| 2 7/8 PAC | 6 | 6 | 12 | |
| 4 - 4 3/8 | 2 7/8 IF | 9 | 8 | 17 |
| 2 7/8 XH | 9 | 8 | 17 | |
| N.C 31 | 9 | 8 | 17 | |
| 3½ REG | 9 | 8 | 17 | |
| 4½ - 5 1/8 | N.C 35 | 12 | 10 | 22 |
| 3½ XH | 12 | 10 | 22 | |
| N.C 38 | 12 | 10 | 22 | |
| 3½ IF | 12 | 10 | 22 | |
| 5 - 5¾ | N.C 40 | 15 | 14 | 29 |
| 4 FH | 15 | 14 | 29 | |
| 5¾ - 6¼ | 4½ REG | 21 | 19 | 40 |
| 4½ FH | 21 | 19 | 40 | |
| 6¼ - 6¾ | 4 IF | 20 | 18 | 38 |
| N.C 46 | 20 | 18 | 38 | |
| 6¾ - 7½ | 5½ REG | 23 | 20 | 43 |
| 5½ H-90 | 23 | 20 | 43 | |
| N.C 50 | 23 | 20 | 43 | |
| 4½ IF | 23 | 20 | 43 | |
| 7¼ - 8¼ | 5½ FH | 33 | 30 | 63 |
| 6 5/8 REG | 33 | 30 | 63 | |
| 6 5/8 H-90 | 33 | 30 | 63 | |
| 8¼ - 9 | N.C 61 | 32 | 32 | 64 |
| 9 - 10 | 7 5/8 REG | 66 | 62 | 128 |
| 10 - 11 | 8 5/8 REG | 77 | 73 | 150 |
Lifting Bails for Drill Collars and Drill Pipes:
OD Range |
Connection Size & type |
Standard Pin |
Standard Box |
Standard weight |
| 2-3/8" Eue | 7 | 7 | 14 | |
| - | 2-7/8" EUE | 7 | 7 | 14 |
| - | 3-1/2" EUE | 9 | 9 | 18 |
| - | Fig 1502 | 10 | 10 | 20 |
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