API Spec 8c PSL1 common swivle and double duty drilling rig swivel
Design Features:
Swivel has two categories,common swivel and double duty swivel. Double duty swivel is common swivel combined with spinner.
The company's swivel maches theAPI SPEC 8C PSL1 products standards .It reveived the API certification issued by the American Petroleum Institute and allow to use API monogram.
Washpipe packing set assembly adopts cassette structure.It can be exchanged quickly without disasseble rorary hose and goosneck.
May matching 3LP and 4LP internal or external thread hose connection thread.
The company can also manufature low temperature resistant swivel according to customer's requirement.
Common swivel consists of swivle bail,shell ,Support ,goosneck,central pipe,master bearing.joint other parts. The lower end connected with kelly stem by REG thread .The swivel bail is hang on the book.Gooseneck and torary hose can connected by REG thread connection or union connection(Under normal ciucumstances,the CH125 swivel not weled thread joint ,other types of swivel welded 4LP external thread).
Basic Technical Parameters of Normal Swivels
| TYPE | CH125 | SL135 | SL160 | SL170 | SL225 | SL315 | SL450 |
| Max.Dead Load | 1250 | 1350 | 1600 | 1700 | 2250 | 3150 | 4500 |
| MAX.Revolution (r/min) | 300 | ||||||
| Max.Working Pressure | 21 | 35 | |||||
| Angle between the gooseneck central line and vertical line | 15° | ||||||
| Lower thread | 6.625 GEG-LH | ||||||
| Bore Size of Central Pipe | Φ68 | Φ60 | Φ70 | Φ75 | |||
| mm | Φ670 | Φ57.15 | Φ70 | Φ75 | |||
| Fractured surface at bail bend | 116×90 R50 | R67.5 | 115×95 R63 | 125×115 R60 | 70×120 R60 | 180×140 R70 | 180×165 R75 |
| Bail bend radius | R105 | R115 | R120 | ||||
| overall dimension | 2100×660×620 | 2290×650×640 | 2470×790×680 | 2725×840×785 | 2970×990×980 | 3010×1040×980 | 3040×1110×1095 |
| weight | 625 | 777 | 1000 | 1250 | 2500 | 2700 | 2900 |
Double duty swivel is common swivel combined withe a motor clutch on its shell.Through the fric-tion disc type clutch the driving force of gas motor transmitted to pinion ,the pinion drive the gear wheel mounted on the central pipe to make the joint rotate,then achieved spinning task.
The company has two type of double duty swivel:XSL225 and XSL450.The basic parameters of these two swivels referred to the common swivel:SL225 and SL450,other parameters are as follows:
| Type | type of gas motor | rated power | rated revolution | rated gas pressure | gas consumption | spinning revolution | spinning torque | Inlet | weight |
| XSL225 | FMS-20 | 14.7 | 2800 | 0.7-0.9 | 18 | 92 | 3000 | Rc1½ | 2650 |
| XSL450 | 3050 |
