Description
● Thread type: Adopt bottom thread connection, using female screw thread connect with male casing pipe. Mainly used in threaded connection casing head. When use this connection way, bottom OD of casing head is in standard size to connect with casing head easily.
● Slip type: The bottom slip connection according to casing size: 9 5/8”、10 3/4”、13 3/8”、20”.This is an easy type used rubber seal, which do not need welding and make it easier to install in the field.
● Welding type: Could add test point and O ring accordingly.
Structural Features
Technical Parameter
Bottom connection of casing head
Threaded Connection | Slip Connection | Welded Connection |
6-5/8" | 6-5/8" | 6-5/8" |
7" | 7" | 7" |
7-5/8" | 7-5/8" | 7-5/8" |
8-5/8" | 8-5/8" | 8-5/8" |
9-5/8" | 9-5/8" | 9-5/8" |
10-3/4" | 10-3/4" | 10-3/4" |
11-3/4" | 11-3/4" | 11-3/4" |
13-3/8" | 13-3/8" | 13-3/8" |
16" | 16" | 16" |
18-5/8" | 18-5/8" | 18-5/8" |
20" | 20" | 20" |
24" | 24" | 24" |
26" | 26" | 26" |