preventer flow tee and top connector within a body formed as a single piece of steel application_number US 37997899 A description the pumping tree 1 comprises an integral body 2 formed as a single piece of steel it is generally tubular having an axial vertical fluid flow bore 3 extending therethrough it is also generally cylindrical externally to provide a body side wall 4 of generally consistent thickness having a wall thickness bore diameter ratio in the range of 1 to 1 or greater the body 2 has a bottom connector 5 for connection with the flanged top connection 6 of a tubing head 7 the bottom connector 5 is shown as a studded down connection however it can be a flanged connection clamp hub connection or rotatable flange connection as well the face 8 of the connector 5 forms a seal ring groove 9 extending around the bore 3 so that when a seal ring not shown is inserted and the connector 5 is tightened against the tubing head connection 6 a fluid tight seal is obtained a valve housing section 10 extends up from and is integral with the bottom connector 4 the section 10 forms a body cavity or opening 11 for receiving a conventional gate valve 12 the opening 11 communicates with the bore 3 the gate valve 12 is operative to open or close the bore 3 as required its hand wheel and bonnet assembly 13 protrude externally of the body 2 a first b o p.