Products Name:Large caliber gate valve
The large-diameter flanged gate valve produced by Xiamen Kemus Valve Co.,Ltd. is widely applied to oil and gas products such as petrochemical and thermal power plants, and the opening and closing device for connecting or interrupting the medium in the water vapor pipeline
Product Usage of Large caliber gate valve
The large-diameter flanged gate valve produced by Xiamen Kemus Valve Co.,Ltd. is widely applied to oil and gas products such as petrochemical and thermal power plants, and the opening and closing device for connecting or interrupting the medium in the water vapor pipeline
Features of Large caliber gate valve
1, compact structure, reasonable design, good valve rigidity, smooth passage, small flow coefficient
2, the sealing surface of stainless steel and carbide, long life
3, Flexible graphite packing, reliable sealing, light and flexible operation
4, the driving mode is manual, pneumatic, electric, gear drive
5, the structure of the elastic wedge single gate, rigid wedge single gate double gate type
Executive Standard of Large caliber gate valve
Design specifications: GB / T 12234
Structure length: GB / T 12221
Connecting flange: JB / T 79.1
Test and inspection: JB / T 9092
Pressure - Temperature: GB / T 9131
Product Identification: GB / T 12220
Performance parameters of Large caliber gate valve
Nominal pressurePN（MPa) | case | test pressure（MPa) | Sealed | |
Sealed (liquid) | Seal (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 | 11.0 |
16.0 | 24.0 | 18.0 | 0.6 | 18.0 |
Suitable medium and applicable temperature of Large caliber gate valve
Shell material | Suitable media | Applicable temperature (℃) |
Carbon steel (C type) | Water, steam, oil | ≤425 |
Chromium nickel titanium steel (P type) | Nitric acids | ≤200 |
Chrome nickel molybdenum titanium steel (R type) | Acetic acid | ≤200 |
Chrome-molybdenum steel (type I) | Water, steam, oil | ≤550 |
The main part material of Large caliber gate valve
Body,bonnet | Valve plate, seat | Valve stem | Stem nut | filler | Handwheel |
Carbon steel | High-quality carbon steel + carbide or stainless steel | Chrome stainless steel | Aluminum bronze | Graphite asbestos packing | Malleable iron |
Chromium nickel titanium steel | Stainless steel, stainless steel + cemented carbide | Chrome nickel-titanium stainless steel | Aluminum bronze | Teflon | Malleable iron |
Chromium nickel molybdenum titanium steel | Stainless steel, stainless steel + cemented carbide | Chrome nickel-titanium stainless steel | Aluminum bronze | Teflon | Malleable iron |
Chrome-molybdenum steel | Alloy steel + Carbide | Chrome-molybdenum steel | Aluminum bronze | Flexible asbestos | Malleable iron |
The main shape and connection dimensions of Large caliber gate valve
Nominal diameter | The main dimensions and connection dimensions | |||||||
L | D | D1 | D2 | b | Z-d | H | D0 | |
Z41H-16 | ||||||||
15 | 130 | 95 | 65 | 45 | 14-2 | 4-Φ14 | 170 | 120 |
20 | 150 | 105 | 75 | 55 | 14-2 | 4-Φ14 | 190 | 140 |
25 | 160 | 115 | 85 | 65 | 14-2 | 4-Φ14 | 205 | 160 |
32 | 180 | 135 | 100 | 78 | 16-2 | 4-Φ18 | 270 | 180 |
40 | 200 | 145 | 110 | 85 | 16-3 | 4-Φ18 | 310 | 200 |
50 | 250 | 160 | 125 | 100 | 16-3 | 4-Φ18 | 358 | 240 |
65 | 265 | 180 | 145 | 120 | 18-3 | 4-Φ18 | 373 | 240 |
80 | 280 | 195 | 160 | 135 | 20-3 | 8-Φ18 | 435 | 280 |
100 | 300 | 215 | 180 | 155 | 20-3 | 8-Φ18 | 500 | 300 |
125 | 325 | 245 | 210 | 185 | 22-3 | 8-Φ18 | 614 | 320 |
150 | 350 | 280 | 240 | 210 | 24-3 | 8-Φ23 | 674 | 360 |
200 | 400 | 335 | 295 | 265 | 26-3 | 12-Φ23 | 811 | 400 |
250 | 450 | 405 | 355 | 320 | 30-3 | 12-Φ25 | 969 | 450 |
300 | 500 | 460 | 410 | 375 | 30-3 | 12-Φ25 | 1145 | 580 |
350 | 550 | 520 | 470 | 435 | 34-4 | 16-Φ25 | 1280 | 640 |
400 | 600 | 580 | 525 | 485 | 36-4 | 16-Φ30 | 1452 | 640 |
450 | 650 | 640 | 585 | 545 | 40-4 | 20-Φ30 | 1541 | 720 |
500 | 700 | 705 | 650 | 608 | 44-4 | 20-Φ34 | 1880 | 720 |
600 | 800 | 840 | 770 | 718 | 48-5 | 20-Φ36 | 1874 | 800 |
700 | 900 | 910 | 840 | 788 | 50-5 | 24-Φ41 | 2083 | 800 |
800 | 1000 | 1020 | 950 | 898 | 52-5 | 24-Φ41 | 2400 | 850 |
900 | 1100 | 1120 | 1050 | 998 | 54-5 | 28-Φ41 | 2950 | 1000 |
1000 | 1200 | 1255 | 1170 | 1110 | 56-5 | 28-Φ48 | 3245 | 1000 |
Z41H-25 | ||||||||
15 | 130 | 95 | 65 | 45 | 16-2 | 4-Φ14 | 170 | 120 |
20 | 150 | 105 | 75 | 55 | 16-2 | 4-Φ14 | 190 | 140 |
25 | 160 | 115 | 85 | 65 | 16-2 | 4-Φ14 | 205 | 160 |
32 | 180 | 135 | 100 | 78 | 18-2 | 4-Φ18 | 270 | 180 |
40 | 200 | 145 | 110 | 85 | 18-3 | 4-Φ18 | 310 | 200 |
50 | 250 | 160 | 125 | 100 | 20-3 | 4-Φ18 | 358 | 240 |
65 | 265 | 180 | 145 | 120 | 22-3 | 8-Φ18 | 373 | 240 |
80 | 280 | 195 | 160 | 135 | 22-3 | 8-Φ18 | 435 | 280 |
100 | 300 | 230 | 190 | 160 | 24-3 | 8-Φ23 | 500 | 300 |
125 | 325 | 270 | 220 | 188 | 28-3 | 8-Φ25 | 614 | 320 |
150 | 350 | 300 | 250 | 218 | 30-3 | 8-Φ25 | 674 | 360 |
200 | 400 | 360 | 310 | 278 | 34-3 | 12-Φ25 | 811 | 400 |
250 | 450 | 425 | 370 | 332 | 36-3 | 12-Φ30 | 969 | 450 |
300 | 500 | 485 | 430 | 390 | 40-4 | 16-Φ30 | 1145 | 580 |
350 | 550 | 550 | 490 | 448 | 44-4 | 16-Φ34 | 1280 | 640 |
400 | 600 | 610 | 550 | 505 | 48-4 | 16-Φ34 | 1452 | 640 |
450 | 650 | 660 | 600 | 555 | 50-4 | 20-Φ34 | 1541 | 720 |
500 | 700 | 730 | 660 | 610 | 52-4 | 20-Φ41 | 1676 | 720 |
600 | 800 | 840 | 770 | 718 | 56-5 | 20-Φ41 | 1874 | 800 |
700 | 900 | 955 | 875 | 815 | 60-5 | 24-Φ48 | 2083 | 800 |
800 | 1000 | 1070 | 990 | 930 | 64-5 | 24-Φ48 | 2400 | 950 |
900 | 1100 | 1180 | 1090 | 1025 | 66-5 | 28-Φ54 | 2950 | 1000 |
1000 | 1200 | 1305 | 1210 | 1140 | 68-5 | 28-Φ58 | 3245 | 1000 |
Structure picture
Packing & Delivery
FAQ
Q1.What's the delivery time generally?
For common valves 15-25 days, OEM valves 30~35 days.
Q2.What's your payment terms?
We can accept T/T, L/C, E-checking, Visa, Western Union,etc.
Q3.What's the nearest shipping port?
The nearest port is Tianjin, but we also can export from Beijing, Shanghai, Ningbo, ect.
Q4.What trade terms you can accept?
EXW, FOB, CIF, C&F, etc.
Q5.How long is the time of warranty time?
12 months from using day or 18 months from shipping day.
