First, the high-pressure angle type globe valve 【J44H] Overview of the opening and closing parts of the cut-off valve is plug-shaped valve flap seal appear before the plane or a cone, the valve flap along the centerline of the fluid for linear motion. Movement in the form of the stem, the lift rod (stem down, hand wheel lift), lift swivel rod (with rotating lift handwheel stem nut located in the body). The shut-off valve is only applicable to fully open and fully closed, does not allow for adjustment and throttle. Cutoff valves are forced sealing valve, the valve is closed, must be applied to the valve flap pressure, to force the sealing surface does not leak. When the medium consists of the bottom of the valve flap into the valve 6, the operating force required to overcome the resistance of the frictional force of the stem and packing and the thrust generated by the pressure of the medium off valve a force larger than the force open the valve, so valve rod diameter to large, otherwise the stem top bend failure occurs. In recent years, from the emergence of the self-sealing valve, the medium flow of the cut-off valve replaced by the top of the valve flap into the valve chamber, and then in the medium pressure off valve the force is small, and the opening force of the valve, the valve stem of the The diameter may be reduced accordingly. Meanwhile, in the medium under the action of this form of valve is also more closely. Our valves "three to has stipulated that all top-down flow cutoff valve. Shut-off valve is open, the valve opening height for a nominal diameter of 25% to 30%, the flow has reached the maximum, indicating that the valve has reached the fully open position. So shutoff valve fully open position, is determined by the stroke of the valve flap. Second, the design and manufacturing standards: ● Design and manufacture: GB12233 ● flange dimensions: GB9113 ● length of the structure: to GB12221 ● test and experiment: GB/T13927 three, performance and specifications of the high-pressure angle type valve nominal pressure 16 32 Mpa case the seal test test 24 48 17.6 35.2 gas seal test 0.5-0.7 Suitable medium CPR water, oil, steam of nitrogen and hydrogen gas mixture lye, liquid ammonia applicable temperature (° C) ≤ 200 four, mainly connected with the appearance of the high-pressure angle type valve Dimensions: the Model DN DN (mm) main connection dimensions Dimensions LD D1 M D2 b Z-фd LO H H1 AJ44H-320 AL44H-320 3 60 70 42 M14 x 1.5 10 15 3-16 100 71 77 6 60 70 42 M14 × 1.5 10 15 3-16 150 80 94 J44Y-160 L44Y-160 10 90 95 60 M24 × 2 10 20 3-18 200 260 275 15 105 95 60 M24 × 2 16 20 3-18 200 268 288 J44Y-320 L44Y-320 10 90 95 60 M24 × 2 10 20 3-18 200 268 275 15 105 105 68 M33 × 2 17 20 3-18 200 268 288 J44Y-160 L44Y-160 25 120 102 68 M33 × 2 28 20 3 - 18 300 225 245 32 135 115 80 M42 × 2 37 22 4-18 300 222 248 40 165 165 115 M52 × 2 47 28 6-26 350 265 300 50 190 165 115 M64 × 3 59 32 6-26 400 303 345 J44Y -320 L44Y-320 25 120 115 80 M42 × 2 35 22 4-18 300 225 245 32 135 135 95 M48 × 2 41 25 4-22 300 222 248 40 165 165 115 M64 × 3 58 32 6-26 350 265 300 50 190 200 145 M80 × 3 70 40 6-29 400 303 345 GJ44H-160 GL44H-160 65 215 200 145 M80 × 3 73 40 6-29 710 430 490 80 260 225 170 M100 × 3 93 50 6-33 810 520 600 100 290 260 195 M125 × 4 115 60 6-36 850 595 685 GJ44H-320 GHJ44H-320 65 215 225 170 M100 × 3 90 50 6-33 710 430 490 80 260 260 195 M125 × 4 112 60 6-36 810 520 600 100 290 300 235 M155 × 4 130 75 8-39 850 595 285