 Product and Service
 Product and Service   Wellhead equipment and valves
 Wellhead equipment and valves  Casing Head
 Casing Head
        1) Raw Material: Carbon steel or low alloy steel comply with API Spec.6A.
2) Applied Casing Program: 20"×13-3/8"×9-5/8"× 7"×5-1/2", or as user's requirements.
3) Bottom Connection: welded type, slips type, thread type.
4) Outlet connection: thread type, flange type(c/w VR plug thread).
| Nominal Dimension of Top Flange (in) | 11,13-5/8,20-3/4,21-1/4 | 
| Working Pressure of Top Flange (MPsi) | 2,3,5,10 | 
| Surface Casing Dimension(in) | 20,13-3/8,9-5/8,7 | 
| Nominal Diameter of Side Outlet (in) | 2-1/16,2-9/16,3-1/8 |