Product [oxygen shutoff valve] Details: Product Name: oxygen-specific cut-off valve [JY41W] Features: oxygen-specific cut-off valve as opening and closing device for transporting oxygen pipeline metallurgical industry, compared to other general purpose valves compared particularly stringent requirements. Because oxygen is flammable and explosive dangerous goods, must be leak-proof, anti-static, fire flower, in order to avoid accidents. Structure design: the opening and closing of the valve stem lift without rotation to reduce the wear of the seal pair, packing wear and seal wear; equipped with grounding screw on the side of the flange, to avoid sparks from static; stem exposed parts of the sealed with plexiglass cover for Dust-oil. Technical parameters of the valve body material 1Cr18Ni9Ti nominal pressure PN (MPa) 2.5 Nominal diameter DN (mm) 15-400 performance description features with good sealing performance, flexible and easy to operate, safe and reliable, long life and other advantages. Second, the main performance and the use of range: Model Nominal pressure shell test pressure Ps (Mpa) applicable gas seal test temperature (℃) Applicable medium moisture Jy41W-25P Jy41W-40P 2.5 3.8 2.5 2.5 at room temperature oxygen, oxygen-specific cut-off valve is mainly Dimensions: Jy41W-40P Jy41W-40R Weight (kg) male, said through diameter DN of the (mm) Dimensions (mm) LD D1 D2 D6 bf fz z-фd Dz i H D0 15 130 95 65 45 40 16 2 4 4-ф14 82 10 202 100 5 20 150 105 75 55 51 16 2 4 4-ф14 95 13 225 100 6.5 25 160 115 85 65 58 16 2 4 4-ф14 98 15 236 125 7 32 190 135 100 78 66 18 2 4 4 - ф18 120 28 312 180 13.5 40 200 145 110 85 76 18 3 4 4-ф18 135 20 328 160 16 50 230 160 125 100 88 20 3 4 4-ф18 160 25 450 320 32 65 290 180 145 120 110 22 3 4 8 -ф18 180 30 530 360 45 80 310 195 160 135 121 22 3 4 8-ф18 195 32 560 400 60 100 350 230 190 160 150 24 3 4.5 8-ф23 230 40 618 450 80 125 400 270 220 188 176 28 3 4.5 8-ф25 275 42 675 450 105 150 480 300 250 218 204 30 3 4.5 8-ф25 330 50 743 560 134 200 600 375 320 282 260 38 3 4.5 12-ф30 405 55 850 640 266 250 650 445 385 345 313 ??42 3 4.5 12-ф34 480 88 975 720 491 300 750 510 450 408 364 46 4 4.5 16-ф34 520 100 1115 800 705 400 950 655 585 535 474 58 4 5 16-ф41 650 140 1425 900 1234