Which is good performance of the valve Hangzhou Tiandun trusted electric wedge gate valve

Product use wedge gate valves are widely used in petrochemical, power plants and other oil and steam pipeline to connect or disconnect the line for the opening and closing device product features a medium, compact structure, reasonable design, the valve good rigidity, smooth channel, flow coefficient is small 2, the sealing surface of stainless steel and tungsten carbide, long life 3, the use of flexible graphite packing, sealing, reliable, easy operation and flexible 4, the drive for manual, pneumatic, electric, gear 5 structure in the form of an elastic wedge single gate, rigid wedge single slide double plate type [Executive standard] design specifications: GB / T 12234 length of the structure: GB / T 12221 Flange: JB / T 79 Test and Inspection : JB / T 9092 Pressure - Temperature: GB / T 9131 Product Identification: GB / T 12220] [Performance Specification Nominal PN (MPa) Shell test pressure (MPa) seal seal (liquid) sealed (gas) 1.6 2.4 1.8 0.6 1.8 2.5 3.8 2.8 0.6 2.8 4.0 6.0 4.4 0.6 4.4 6.4 9.6 7.0 0.6 7.0 10.0 15.0 11.0 0.6 0.6 18.0 11.0 16.0 24.0 18.0 Medium [Temperature] shell material and Medium Temperature (℃) carbon steel (C-type ) water, steam, oil ≤425 chrome nickel titanium steel (P-type) nitric acid ≤200 steel chrome-nickel, molybdenum and titanium (R type) acetate ≤200 class chrome-molybdenum steel (I-type) water, steam, oil ≤550 [ Main parts and materials] body, bonnet valve plate, seat stem handwheel stem packing nut quality carbon steel or stainless steel + carbide chrome stainless steel aluminum bronze graphite asbestos packing malleable iron-chromium-nickel stainless steel titanium, stainless steel + nickel-titanium alloy chromium stainless steel aluminum bronze Baptist PTFE malleable iron-chromium-nickel stainless steel, molybdenum and titanium, stainless steel, chrome-nickel, molybdenum and titanium carbide + aluminum bronze stainless steel PTFE dip malleable iron-chromium-molybdenum steel alloy + Carbide chromium-molybdenum steel and aluminum bronze aluminum flexible asbestos +33.4 Malleable Iron Gate main connection Dimensions Model Nominal diameter DN (mm) Dimensions Weight (kg) LD D1 D2 bf z-фd H Do Z41T / W / H -10 40 165 145 110 85 18-3 4-ф18 245 135 10 50 178 160 125 100 20-3 4-ф18 286 180 18 65 190 180 145 120 20-3 4-ф18 320 180 22 80 203 195 160 135 22-3 4-ф18 373 200 2735 100 229 215 180 155 22-3 8-ф18 428 200 34 125 254 245 210 185 24-3 8-ф18 513 240 49 150 267 280 240 210 24-3 8-ф23 582 240 66.5 200 330 335 295 265 26-3 8-ф23 730 320 107 250 380 390 350 320 28-3 12-ф23 897 320 168 300 420 440 400 368 28-4 12-ф23 1032 400 220 350 450 500 460 428 30-4 16-ф23 1170 400 290 400 480 565 515 482 30-4 16-ф25 1330 500 450 450 510 615 565 532 32-4 20-ф25 1460 500 580 500 540 670 620 585 34-4 20-ф25 1727 500 830 600 600 780 725 685 36- 5 20-ф30 2072 500 1160