The kill hose and choke line hose applies for the connection of the relative motion of the well drilling floor, semi-submersible boat or well drilling boat, and transportation high pressure medium such as oil, gas and mud etc., which is mainly consists of relief hose, BOP hose, kill hose and choke hose. The hose is API Spec. 16C / SY/T 5323-2003 standard, and has characteristics of anti high pressure, fire resistance, heat insulation, and wearable inner surface. 1、 Inner Core 2、 4、6、8、Mutually cross wire line layer 3、 5、7、9、Adhesive texture 10、Heat-insulation layer 11、Fire resistance layer 12、Buffering and sealing layer 13、Stainless jacket Specification and Basic Parameters for Kill and Choke Line Hose I.D. O.D. Working Pressure Test Pressure Min. Bending Radius Ref. Weight Joint Thread In. mm Psi Psi mm Kg/M 2” 90 115 5000 10000 10000 15000 800 900 11 18 Fig. 2” 1502 Union / 2-1/16” Flange 2-1/2” 110 123 5000 10000 10000 15000 900 1000 16 25 Fig. 3” 1502 Union / 2-1/16” Flange 3” 135 147 5000 10000 10000 15000 1050 1150 22 36 Fig. 3” 1502 Union / 3-1/16” Flange 4” 150 165 5000 10000 10000 15000 1100 1200 28 42 Fig. 4” 1502 Union / 4-1/16” Flange