High pressure adapter assembly for use on blow out preventers

A high pressure adapter assembly for use in an annular blow out preventer comprising annular seals, the high pressure adapter assembly comprising:

• a. an upper body and a lower body with a bore that communicates between the upper body and the lower body;
• b. a top flange connected to the upper body for connection with a pressure control device;
• c. a side outlet port disposed in the upper body, integrally connected to the bore having a port body and a side flange, wherein the side flange engages a line for pump-in or bleed-off of well fluids;
• d. a two-part self energizing hold down assembly consisting of:
• a male engagement member disposed between the upper body and the lower body;
• a flange with a female engagement member for threadably engaging with the male engagement member of the two-part self energizing hold down assembly;
• and
• e. a seal disposed between the male engagement member and the female engagement member, wherein the lower body engages an annular seal of an annular blow out preventer.