Dual-plate lug check valve
Oil
-196ºC ~ 540ºC
Wcb, Wc6, Wc9, Lcb, Ht200, Zg230-450 etc.
Flange
Pn1~Pn42(Class150~Class2500)
API
Industrial Usage, Water Industrial Usage
API594, API6d, Jb/T8937
API594, API6d, Jb/T8937
Jb/T74~90, GB/T13402, GB/T9112~9124, etc.
Jb/T74, GB/T9124, Hg20604~20625, ASME B16.34, etc.
API598, Jb/T9092
OEM
Plywood
DN15~DN1200(1/2" ~48")
China
84818090
Product Description


Size | 2"-24" | 26"-60" | 66"-144" |
FIgStd | ASME B16.5 | ASME B16.47A(MSS SP44) | AWWA C207 ( Class E 275 PSI) |
Dimensions& weights | |||||||||||||
Size | Pressure Rating | End facing | Dimensions | Pipe Flange | Weight (Kg) | ||||||||
L | R | f | D2 | D3 | D1 | Stud Quantity | Stud Diameter | Stud Length | |||||
mm | in | mm | mm | ||||||||||
2" (50) | 150 | RF | 60 | 92 | 2 | 51 | 58 | 120.7 | 4 | 5/8 | M16 | 140 | 4 |
300 | RF | 60 | 92 | 2 | 51 | 58 | 127 | 8 | 5/8 | M16 | 155 | 6 | |
600 | RF/RTJ-23 | 60 | 92 | 7 | 51 | 58 | 127 | 8 | 5/8 | M16 | 175/180 | 6.5 | |
900 | RF/RTJ-24 | 70 | 92 | 7 | 50 | 55 | 165.1 | 8 | 7/8 | M24 | 225/230 | 15 | |
1500 | RF/RTJ-24 | 70 | 92 | 7 | 50 | 55 | 165.1 | 8 | 7/8 | M24 | 225/230 | 15 | |
2500 | RF/RTJ-26 | 70 | 92 | 7 | 45 | 50 | 171.4 | 8 | 1 | M27 | 255/260 | 19 | |
2 1/2" (65) | 150 | RF | 67 | 105 | 2 | 65 | 73 | 139.7 | 4 | 5/8 | M16 | 150 | 5.5 |
300 | RF | 67 | 105 | 2 | 65 | 73 | 149.2 | 8 | 3/4 | M20 | 175 | 7 | |
600 | RF/RTJ-26 | 67 | 105 | 7 | 65 | 73 | 149.2 | 8 | 3/4 | M20 | 195/200 | 8 | |
900 | RF/RTJ-27 | 83 | 105 | 7 | 62 | 70 | 190.5 | 8 | 1 | M27 | 250/255 | 23 | |
1500 | RF/RTJ-27 | 83 | 105 | 7 | 62 | 70 | 190.5 | 8 | 1 1/8 | M30 | 250/255 | 23 | |
2500 | RF/RTJ-28 | 83 | 105 | 7 | 52 | 60 | 196.8 | 8 | 1 1/4 | M33 | 290/310 | 32 | |
3" (80) | 150 | RF | 73 | 127 | 2 | 80 | 88 | 152.4 | 4 | 5/8 | M16 | 160 | 7 |
300 | RF | 73 | 127 | 2 | 80 | 88 | 168.3 | 8 | 3/4 | M20 | 190 | 10 | |
600 | RF/RTJ-31 | 73 | 127 | 7 | 80 | 88 | 168.3 | 8 | 3/4 | M20 | 210/215 | 11 | |
900 | RF/RTJ-31 | 83 | 127 | 7 | 76 | 88 | 190.5 | 8 | 7/8 | M24 | 240/245 | 23 | |
1500 | RF/RTJ-35 | 83 | 127 | 7 | 76 | 88 | 203.2 | 8 | 1 1/8 | M30 | 270/275 | 25 | |
2500 | RF/RTJ-32 | 86 | 127 | 7 | 65 | 85 | 228.6 | 8 | 1 1/4 | M33 | 320/330 | 38 | |
4" (100) | 150 | RF | 73 | 157 | 2 | 102 | 108 | 190.5 | 8 | 5/8 | M16 | 170 | 11 |
300 | RF | 73 | 157 | 2 | 102 | 108 | 200 | 8 | 3/4 | M20 | 195 | 16 | |
600 | RF/RTJ-37 | 79 | 157 | 7 | 102 | 108 | 215.9 | 8 | 7/8 | M24 | 235/240 | 22 | |
900 | RF/RTJ-37 | 102 | 157 | 7 | 100 | 108 | 235 | 8 | 1 1/8 | M30 | 285/290 | 42 | |
1500 | RF/RTJ-39 | 102 | 157 | 7 | 100 | 108 | 241.3 | 8 | 1 1/4 | M33 | 310/315 | 45 | |
2500 | RF/RTJ-38 | 105 | 157 | 7 | 90 | 100 | 273 | 8 | 1 1/2 | M39X3 | 370/380 | 69 | |
5" (125) | 150 | RF | 86 | 186 | 2 | 127 | 132 | 215.9 | 8 | 5/8 | M16 | 190 | 15 |
300 | RF | 86 | 186 | 2 | 127 | 132 | 235 | 8 | 3/4 | M20 | 215 | 26 | |
600 | RF/RTJ-41 | 105 | 186 | 7 | 127 | 132 | 292.1 | 8 | 1 | M27 | 280/285 | 49 | |
900 | RF/RTJ-41 | 110 | 186 | 7 | 125 | 130 | 279.4 | 8 | 1 1/4 | M33 | 310/315 | 80 | |
1500 | RF/RTJ-44 | 110 | 186 | 7 | 125 | 130 | 292.1 | 8 | 1 1/2 | M39X3 | 370/375 | 95 | |
2500 | RF/RTJ-42 | 110 | 186 | 7 | 110 | 120 | 323.8 | 8 | 1 3/4 | M45X3 | 420/435 | 160 | |
6" (150) | 150 | RF | 98 | 216 | 2 | 152 | 160 | 241.3 | 8 | 3/4 | M20 | 205 | 19 |
300 | RF | 98 | 216 | 2 | 152 | 160 | 269.9 | 12 | 3/4 | M20 | 230 | 32 | |
600 | RF/RTJ-45 | 136 | 216 | 7 | 152 | 160 | 292.1 | 12 | 1 | M27 | 320/325 | 65 | |
900 | RF/RTJ-45 | 159 | 216 | 7 | 150 | 160 | 317.5 | 12 | 1 1/8 | M30 | 365/370 | 105 | |
1500 | RF/RTJ-46 | 159 | 216 | 7 | 150 | 160 | 317.5 | 12 | 1 3/8 | M36X3 | 430/440 | 115 | |
2500 | RF/RTJ-47 | 159 | 216 | 7 | 135 | 150 | 368.3 | 8 | 2 | M52X3 | 515/530 | 185 | |
8" (200) | 150 | RF | 127 | 270 | 2 | 203 | 210 | 298.5 | 8 | 3/4 | M20 | 240 | 36 |
300 | RF | 127 | 270 | 2 | 203 | 210 | 330.2 | 12 | 7/8 | M24 | 280 | 62 | |
600 | RF/RTJ-49 | 165 | 270 | 7 | 200 | 210 | 349.2 | 12 | 1 1/8 | M30 | 370/375 | 55 | |
900 | RF/RTJ-49 | 206 | 270 | 7 | 200 | 210 | 393.7 | 12 | 1 3/8 | M36X3 | 440/445 | 220 | |
1500 | RF/RTJ-50 | 206 | 270 | 7 | 200 | 210 | 393.7 | 12 | 1 5/8 | M42X3 | 510/520 | 230 | |
2500 | RF/RTJ-51 | 206 | 270 | 7 | 180 | 190 | 438.2 | 12 | 2 | M52X3 | 600/620 | 300 | |
10" (250) | 150 | RF | 146 | 324 | 2 | 254 | 265 | 362 | 12 | 7/8 | M24 | 270 | 60 |
300 | RF | 146 | 324 | 2 | 254 | 265 | 387.4 | 16 | 1 | M27 | 315 | 82 | |
600 | RF/RTJ-53 | 213 | 324 | 7 | 254 | 265 | 431.8 | 16 | 1 1/4 | M33 | 440/445 | 185 | |
900 | RF/RTJ-53 | 241 | 324 | 7 | 250 | 265 | 469.9 | 16 | 1 3/8 | M36X3 | 490/495 | 280 | |
1500 | RF/RTJ-54 | 248 | 324 | 7 | 240 | 260 | 482.6 | 12 | 1 7/8 | M48X3 | 600/610 | 330 | |
2500 | RF/RTJ-55 | 254 | 324 | 7 | 225 | 235 | 539.8 | 12 | 2 1/2 | M64X3 | 750/775 | 485 | |
12" (300) | 150 | RF | 181 | 381 | 2 | 305 | 310 | 431.8 | 12 | 7/8 | M24 | 310 | 115 |
300 | RF | 181 | 381 | 2 | 305 | 310 | 450.8 | 16 | 1 1/8 | M30 | 365 | 160 | |
600 | RF/RTJ-57 | 229 | 381 | 7 | 305 | 310 | 489 | 20 | 1 1/4 | M33 | 460/465 | 260 | |
900 | RF/RTJ-57 | 292 | 381 | 7 | 305 | 310 | 533.4 | 20 | 1 3/8 | M36X3 | 560/565 | 480 | |
1500 | RF/RTJ-58 | 305 | 381 | 7 | 300 | 305 | 571.5 | 16 | 2 | M52X3 | 690/715 | 600 | |
2500 | RF/RTJ-60 | 305 | 381 | 7 | 270 | 280 | 619 | 12 | 2 3/4 | M70X3 | 855/885 | 750 | |
14" (350) | 150 | RF | 184 | 413 | 2 | 350 | 360 | 476.3 | 12 | 1 | M27 | 325 | 130 |
300 | RF | 222 | 413 | 2 | 350 | 360 | 514.4 | 20 | 1 1/8 | M30 | 410 | 260 | |
600 | RF/RTJ-61 | 273 | 413 | 7 | 340 | 350 | 527 | 20 | 1 3/8 | M36X3 | 520/525 | 390 | |
900 | RF/RTJ-62 | 356 | 413 | 7 | 340 | 350 | 558.8 | 20 | 1 1/2 | M39X3 | 645/655 | 720 | |
1500 | RF/RTJ-63 | 356 | 413 | 7 | 330 | 340 | 635 | 16 | 2 1/4 | M56X3 | 775/800 | 905 | |
16" (400) | 150 | RF | 191 | 470 | 2 | 400 | 410 | 539.8 | 16 | 1 | M27 | 340 | 180 |
300 | RF | 232 | 470 | 2 | 400 | 410 | 571.5 | 20 | 1 1/4 | M33 | 435 | 342 | |
600 | RF/RTJ-65 | 305 | 470 | 7 | 390 | 400 | 603.2 | 20 | 1 1/2 | M39X3 | 575/580 | 520 | |
900 | RF/RTJ-66 | 384 | 470 | 7 | 380 | 400 | 616 | 20 | 1 5/8 | M42X3 | 685/695 | 780 | |
1500 | RF/RTJ-67 | 384 | 470 | 7 | 370 | 390 | 704.8 | 16 | 2 1/2 | M64X3 | 850/880 | 1100 | |
18" (450) | 150 | RF | 203 | 533 | 2 | 450 | 460 | 577.9 | 16 | 1 1/8 | M30 | 365 | 205 |
300 | RF | 264 | 533 | 2 | 450 | 460 | 628.6 | 24 | 1 1/4 | M33 | 475 | 400 | |
600 | RF/RTJ-69 | 362 | 533 | 7 | 440 | 450 | 654 | 20 | 1 5/8 | M42X3 | 650/655 | 750 | |
900 | RF/RTJ-70 | 451 | 533 | 7 | 430 | 440 | 685.8 | 20 | 1 7/8 | M48X3 | 790/805 | 1180 | |
1500 | RF/RTJ-71 | 468 | 533 | 7 | 420 | 440 | 774.7 | 16 | 2 3/4 | M70X3 | 955/985 | 1700 | |
20" (500) | 150 | RF | 219 | 584 | 2 | 500 | 510 | 635 | 20 | 1 1/8 | M30 | 365 | 280 |
300 | RF | 292 | 584 | 2 | 500 | 510 | 685.8 | 24 | 1 1/4 | M33 | 510 | 540 | |
600 | RF/RTJ-73 | 368 | 584 | 7 | 490 | 500 | 723.9 | 24 | 1 5/8 | M42X3 | 670/680 | 910 | |
900 | RF/RTJ-74 | 451 | 584 | 7 | 490 | 500 | 749.3 | 20 | 2 | M52X3 | 810/825 | 1600 | |
1500 | RF/RTJ-75 | 533 | 584 | 7 | 460 | 480 | 831.8 | 16 | 3 | M76X3 | 1065/1095 | 1280 | |
24" (600) | 150 | RF | 222 | 692 | 2 | 600 | 610 | 749.3 | 20 | 1 1/4 | M33 | 405 | 330 |
300 | RF | 318 | 692 | 2 | 600 | 610 | 812.8 | 24 | 1 1/2 | M39X3 | 560 | 833 | |
600 | RF/RTJ-77 | 438 | 692 | 7 | 590 | 600 | 838.2 | 24 | 1 7/8 | M48X3 | 780/795 | 1150 | |
900 | RF/RTJ-78 | 495 | 692 | 7 | 580 | 590 | 901.7 | 20 | 2 1/2 | M64X3 | 945/965 | 1950 | |
1500 | RF/RTJ-79 | 559 | 692 | 7 | 560 | 570 | 990.6 | 16 | 3 1/2 | M90X3 | 1170/1210 | 3000 | |
28" (700) | 150 | RF | 305 | 800 | 2 | 685 | 690 | 863.6 | 28 | 1 1/4 | M33 | 545 | ** |
300 | RF | 368 | 800 | 2 | 685 | 690 | 939.8 | 28 | 15/8 | M42X3 | 650 | ** | |
600 | RF/RTJ-94 | 483 | 800 | 7 | 685 | 690 | 965.2 | 28 | 2 | M52X3 | 850/865 | ** | |
900 | RF/RTJ-101 | 572 | 800 | 7 | 670 | 680 | 1022.4 | 20 | 3 | M76X3 | 1080/1100 | ** | |
30" (750) | 150 | RF | 305 | 857 | 2 | 735 | 750 | 914.4 | 28 | 1 1/4 | M33 | 550 | ** |
300 | RF | 368 | 857 | 2 | 735 | 750 | 997 | 28 | 1 3/4 | M45X3 | 665 | ** | |
600 | RF/RTJ-95 | 505 | 857 | 7 | 735 | 740 | 1022.4 | 28 | 2 | M52X3 | 890/905 | ** | |
900 | RF/RTJ-102 | 635 | 857 | 7 | 715 | 730 | 1085.9 | 20 | 3 | M76X3 | 1160/1180 | ** | |
32" (800) | 150 | RF | 305 | 914 | 2 | 785 | 790 | 977.9 | 28 | 1 1/2 | M39X3 | 570 | ** |
300 | RF | 368 | 914 | 2 | 785 | 790 | 1054.1 | 28 | 1 7/8 | M48X3 | 685 | ** | |
600 | RF/RTJ-96 | 533 | 914 | 7 | 780 | 790 | 1079.5 | 28 | 2 1/4 | M56X3 | 920/940 | ** | |
900 | RF/RTJ-103 | 660 | 914 | 7 | 760 | 780 | 1155.2 | 20 | 3 1/4 | M84X3 | 1200/1220 | ** | |
36" (900) | 150 | RF | 368 | 1022 | 2 | 885 | 890 | 1085.9 | 32 | 1 1/2 | M39X3 | 650 | ** |
300 | RF | 483 | 1022 | 2 | 885 | 890 | 1168.4 | 32 | 2 | M52X3 | 820 | ** | |
600 | RF/RTJ-98 | 635 | 1022 | 7 | 875 | 880 | 1193.8 | 28 | 2 1/2 | M64X3 | 1050/1070 | ** | |
900 | RF/RTJ-105 | 718 | 1022 | 7 | 855 | 865 | 1289.1 | 20 | 3 1/2 | M90X3 | 1290/1310 | ** | |
40" (1000) | 150 | RF | 432 | 1124 | 2 | 980 | 990 | 1200.7 | 36 | 1 1/2 | M39X3 | 720 | ** |
300 | RF | 546 | 1086 | 2 | 980 | 990 | 1155.7 | 32 | 1 5/8 | M42X3 | 885 | ** | |
600 | RF | 660 | 1111 | 7 | 980 | 985 | 1212.9 | 32 | 2 1/4 | M56X3 | 1130 | ** | |
900 | RF | 762 | 1162 | 7 | 950 | 965 | 1339.9 | 24 | 3 1/2 | M90X3 | 1380 | ** | |
42" (1050) | 150 | RF | 432 | 1194 | 2 | 1020 | 1040 | 1257.3 | 36 | 1 1/2 | M39X3 | 730 | ** |
300 | RF | 568 | 1137 | 2 | 1020 | 1040 | 1206.5 | 32 | 1 5/8 | M42X3 | 915 | ** | |
600 | RF | 702 | 1168 | 7 | 1020 | 1030 | 1282.7 | 28 | 2 1/2 | M64X3 | 1210 | ** | |
900 | RF | 787 | 1213 | 7 | 995 | 1005 | 1390.7 | 24 | 3 1/2 | M90X3 | 1440 | ** | |
48" (1200) | 150 | RF | 524 | 1359 | 2 | 1170 | 1190 | 1422.4 | 44 | 1 1/2 | M39X3 | 840 | ** |
300 | RF | 629 | 1302 | 2 | 1170 | 1180 | 1371.6 | 32 | 1 7/8 | M48X3 | 1015 | ** | |
600 | RF | 787 | 1334 | 7 | 1170 | 1170 | 1460.5 | 32 | 2 3/4 | M70X3 | 1350 | ** | |
54" (1350) | 150 | RF | 591 | 1511 | 2 | 1315 | 1330 | 1593.9 | 44 | 1 3/4 | M45X3 | 950 | ** |
300 | RF | 718 | 1467 | 2 | 1315 | 1330 | 1549.4 | 28 | 2 1/4 | M56X3 | 1160 | ** | |
60" (1500) | 150 | RF | 660 | 1676 | 2 | 1460 | 1470 | 1759 | 52 | 1 3/4 | M45X3 | 1040 | ** |
300 | RF | 838 | 1626 | 2 | 1460 | 1470 | 1701.8 | 32 | 2 1/4 | M56X3 | 1310 | ** | |
66" (1650) | 150 | RF | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** |
72" (1800) | 150 | RF | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** |
78" (1950) | 150 | RF | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** |
84" (2100) | 150 | RF | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** |
90"-144" (2250-3600) | 150 | RF | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** | ** |

We mainly provide safe and reliable API ,JIS ,DIN Standard ball valve, gate valves, globe valves, check valves, fitting flange etc. for pipeline fluids.
We are a company with 20 years of production and sales experience. We mainly provide safe and reliable API, JIS, DIN Standard ball valve, gate valves, globe valves, check valves, fitting flange etc. for pipeline fluids.
Have API6D, CE, ISO certificate.

· Casting room: 8 casting line, 20,000 square. 2,000 Ton / Year
· Workshop: 40,000 square meters, 270,000 Valves / Year( Including The automatic production line for flange ball valves 5,000 square, 500 PCS / Day )
· Stock : 30 Millon RMB SS valve
Our main customers are distributors and wholesalers at all levels. The main materials are WCB, CF8, CF8M, CF3, CF3M, Duplex, Brass, cast iron, pressure from 150LB to 2,500LB. PN16 - PN160, 10K, 20K, Caliber 1/2″-40", connection method RF, RTJ, FF, BW, etc.

Company purpose: To provide reliable, efficient and flexible service, adhere to high quality, low price, fast delivery, professional quality control and good after-sales service attitude! Our goal is to become a reliable supplier of products in the petroleum industry.

