API/Back Pressure Valve for wellhead

Back Pressure Valve: There are two kinds of BPV, one-way and two-way. The one-way BPV provide circulating drill fluids downwards and shutting off pressure from down hole. When coming to pressure test for Christmas tree under tubing hanger. BPV adopts special short buttress thread , and it is of high strength, independence, long service time, etc. BPV could be assembled and disassembled by using its running & retrieve tool to control well pressure effectively and quickly.