Our comapny can manufacture master bushings and insert bowls sizing from 17 1/2 to 49 1/2 inch. They are cast with high quality alloy steel and the sizes conform to API Spec7K Specification for drilling and well servicing equipment. There are two types,pin drive and square drive.API standard rotary slips, drill collar slips,casing slips and roller kelly bushins can be contained in them.
API 7K 17 1/2 ” to 49 1/2″ Rotary Table Master Bushing
Description
API 7K 17 1/2 ” to 49 1/2″ Rotary Table Master Bushing
We are providing master bushings and insert bowls sizing from 17 1/2’’ to 49 1/2’’. They are cast with high-quality alloy steel and sizes conform to API 7K specification for drilling and well servicing equipment. There are two types, pin drive and square drive. API standard rotary slips, drill collars slips, casing slips and roller Kelly bushings can be contained in them.
Master bushings can be divided into three kinds of structure, hinged, solid and split. It is adapted to rotary table by size from 17 1/2’’ to 49 1/2’’ respectively. When insert bowls are assembled, it can be connected with rotary slips, drill collar slips, casing slips, and roller Kelly bushing that are manufactured in accordance with API 7K.
There are two locks device in master bushings. Retract the two locks before lowering the insert bowl valves. This is done by lifting and turning the two pins 180 degrees, then dropping them back into the recesses, after inserting lock bowls in place.
API standard, square drive master bushings and insert bowls can use short or medium slips in order to apply load of Hooks Load 1112 kN effectively. When load of Hooks Load exceed 1112 kN, extend Insert Bowls and medium or extra slips should be used.
| Bushing Type | Rotary Table Size(in) | Insert Bowls | Handling Pipe OD(in) |
|---|---|---|---|
| MSS Solid body and Split Body | 17 1/2 | API Bowl 1011 | 2 3/8-8 5/8 |
| EXT.Bowl 1024 | |||
| 20 1/2 | API Bowl 1011 | ||
| EXT.Bowl 1024 | |||
| 27 1/2 | API Bowl 1022 | ||
| EXT.Bowl 1025 | |||
| Insert Bowl 1026 | |||
| MDSP Split Body | 17 1/2 | EXT.No.3 Taper | 2 3/8-8 5/8 |
| 20 1/2 | |||
| MSPC Solid body | 20 1/2 | Bowl 1809 | 2 3/8-8 5/8 |
| Bowl 1902 | 9 5/8-10 3/4 | ||
| Body only 1805 | 11 3/4-13 3/8 | ||
| 27 1/2 | Bowl 1810(No3) | 2 3/8-8 5/8 | |
| Bowl 1904(No2) | 9 5/8-10 3/4 | ||
| Bowl 1903(No1) | 11 3/4-13 3/8 | ||
| MSP Split Body | 27 1/2 | EXT.No.3 Taper | 2 3/8-8 5/8 |
| MPCH | 37 1/2 | Bowl 6608(No3) | 2 3/8-8 5/8 |
| Bowl 6609(No2) | 9 5/8-10 3/4 | ||
| Bowl 6610(No1) | 11 3/4-13 3/8 |
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