The common oil production wellhead is connected by a flange or a clamp. It has the characteristics of convenient installation, quick disassembly and reliable sealing, and its valve has long service life and elegant appearance.
| Model Parameters | KY65-21 | KY65-35 | |
| Nominal diameter mm | 65 | 65 | 65 | 
| Working pressure MPa | 21 | 21 | 34.5 | 
| Adaptive temperature ℃ | -20~80 | ||
| Type of connection | Flange or hoop | Flange or hoop | Flange or hoop | 
| Specification in of adaptive casing pipe | 51/2 | 51/2 | 51/2 | 
| External dimension length* height mm | 1500×1190 | 1500×1190 | 2268×1740 | 
|  31/2″EUE.59×17.5F Mid Joint |  27/8″EUE.59×17.5F Mid Joint |  31/2″EUE.59×17.5FCable protector | 
|  27/8″EUE.59×17.5FCable protector |  Stuffing box |  Sucker Rod Series | 
|  Tubing |  Pumping Unit |