Cast iron gate valve 
 Cast iron gate valves: manual, flange connection, the next shot wedge rigid single gate, the seat sealing surface material is brass (Z41T-10), gray cast iron (Z41W-10), nominal pressure PN10, material for the gray body cast iron gate valve. 
 Cast iron gate valve performance parameters 
 Z41T-10, Z41W-10 main performance parameters of type cast iron gate valve 
 Model PN Working Pressure / MPa Temperature / ℃ Medium 
 Z41T-10 10 1.0 ≤ 200 water, steam 
 Z41W-10 10 1.0 ≤ 100 oil 
 Cast Iron Gate Valve parts and materials 
 Z41T-10, Z41W-10-type materials, cast iron valve parts 
 Type Material 
 Body, bonnet, gate valve stem packing sealing surface 
 Z41T-10 gray cast iron Carbon Steel Brass Oil asbestos packing 
 Z41W-10 gray cast iron steel gray cast iron oil asbestos packing 
 Z41T-10, Z41W-10-type cast iron gate shape and structure of the main dimensions (mm) 
 DN LD D1 D2 b H H1 z × Φd D0 Weight / kg 
 50 180 160 125 100 20 286 345 4 × Φ18 180 17 
 65 195 180 145 120 20 331 410 4 × Φ18 180 22 
 80 210 195 160 135 22 375 470 4 × Φ18 200 30 
 100 230 215 180 155 22 430 544 8 × Φ18 200 35 
 125 255 245 210 185 24 523 660 8 × Φ18 240 52 
 150 280 280 240 210 24 592 762 8 × Φ23 240 70 
 200 330 335 295 265 26 772 993 8 × Φ23 320 125 
 250 380 390 350 320 28 903 1176 12 × Φ23 320 170 
 300 420 440 400 368 28 1043 1366 12 × Φ23 400 226 
 350 450 500 460 428 30 1173 1540 16 × Φ23 400 360 
 400 480 565 515 482 32 1245 1765 16 × Φ25 500 444 
 450 510 615 565 532 32 1500 1970 20 × Φ25 500 590 
 500 540 670 620 585 34 1780 2280 20 × Φ25 720 740 
 600 600 780 725 685 36 2010 2620 20 × Φ30 720 960 
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