Our company can design and produce all kinds wellhead double studded adapter as API 6A.

We can produce all kinds of API 6A double studded adapter for wellhead use. It is the immportant device to connection the defferent flange for wellhead, so the material of the body and studs and nuts shall be conforms the related requirements. The size is in accordance with API flange certification. 

And we can make the blind flange, as the following picture:

wellhead double studed adapter(DSA)