ASTECH VALVE CO.,LTD.

AST was established in Mar.1999, the company's leading operation include valve design, manufacture and sales. AVC was established in Jan. 2010, and fell together with ASTIC for the parent company, the company's leading operation include design & manufacture of Wafer Type Check Valve Series & Metal Seat Ball Valve Series. Our company by ANGLO JAPANESE AMERICAN REGISTRARS TAIWAN LIMITED ISO - 9001 in June 2011, and plan by CE & API in 2013. For expansion of the Japanese market demand, and Japan branch was established in Nov. 2004, It's mainly responsible for sales, and a quality assurance section warehousing and delivery. The Company towards stability and professional quality is the main direction and strategy. To establish an independent AST & AVC brand and marketing East Asia, Southeast Asia and the Middle East market. Find OEM and ODM partners, and plan to market to Europe and America.

Gate Valve - Parts and Material List

ASTECH VALVE CO.,LTD. has consistently maintained ours leading position in the Taiwan market with standard and special Gate Valve - Parts and Material List. Owing to the stringent quality policy, our Gate Valve - Parts and Material List meets the exact requirements of varied clients. We are one of the leading suppliers and exporters of optimum quality Gate Valve - Parts and Material List, Cast Iron Valve, Gate Valve. Also, our Gate Valve - Parts and Material List is illustrious in the market for its perfect designing, flawless performance, cost-effectiveness, and other such features.
Gate Valve - Parts and Material List

Gate Valve - Parts and Material List

Our company is a reliable manufacturer of One Piece Ball Valve, Reduced Bore Valve, Full Ball Valve, Reduced Bore Ball Valve, Gate Valve, and Valve Parts.

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Parts No. Parts Name Material
WCB / Trim 1 WCB / Trim 8 WCB / Trim 5 CF8 / Trim 2 CF8M / Trim 10
1 Body A216 WCB A351 CF8 A351 CF8M
2 Seat Ring A105+13Cr A105+STL A105+STL A351 CF8 A351 CF8M
3 Wedge A216 WCB+13Cr A216 WCB+13Cr A105+STL A351 CF8 A351 CF8M
4 Stem A182 F6a A182 F304 A182 F316
5 Gasket Soft Iron+Graphite / SS304+Graphite SS304+Graphite SS316+Graphite
6 Bonnet A216 WCB A351 CF8 A351 CF8M
7 Back Seat A182 F6a A351 CF8 A351 CF8M
8 Packing Graphite / PTFE    
9 Gland A182 F6a A182 F304 A182 F316
10 Gland Flange A216 WCB A351 CF8 A351 CF8
11 Stem Nut A439 D2
12 Yoke Sleeve Nut Carbon Steel
13 Handwheel Ductile Iron
14 Handwheel Nut Carbon Steel
15 Nipple Carbon Steel
16 Gland Eyebolt A193 B7 A193 B8 A193 B8M
17 Eyebolt Nut A194 2H A194 8 A194 8M
18 Bonnet Bolt A193 B7 A193 B8 A193 B8M
19 Bonnet Nut A194 2H A194 8 A194 8M
Note: The chart above only lists out some common composition of steel single door wafer check valve parts. We may provide other different parts material composition according to the customer's request or the actual valve working condition.


ANSI 150 LB
NPS L ∮d H H1 ∮W ∮W1 Weight (Kgs)
RF RTJ BW H.W. G.O.
2" 178 191 216 51 400 - 200 - 19 -
2-1/2" 191 203 241 64 435 - 200 - 25 -
3" 203 216 283 76 515 - 250 - 33 -
4" 229 241 305 102 595 - 280 - 49 -
5" 254 267 381 127 725 - 280 - 62 -
6" 267 279 403 152 780 820 300 310 77 104
8" 292 305 419 203 975 1020 350 310 123 150
10" 330 343 457 254 1150 1200 400 310 188 215
12" 356 368 502 305 1380 1430 450 310 288 435
14" 381 394 572 337 1545 1580 500 310 385 435
16" 406 419 610 387 1733 1780 500 460 500 552
18" 432 445 660 438 1915 1990 500 460 601 653
20" 457 470 711 489 2122 2220 600 460 764 816
24" 508 521 813 591 2520 2600 600 460 1007 1185
28" 610 - 914 684 - 3050 - 600 - 1880
30" 610 - 914 735 - 3130 - 600 - 2300
32" 711 - 965 779 - 3280 - 600 - 2550
36" 711 - 1016 874 - 3720 - 600 - 3390

Note: The dimensions of RF, RTJ, BW end, please download the technology data from our website.


ANSI 300 LB
NPS L ∮d H H1 ∮W ∮W1 Weight (Kgs)
RF RTJ BW H.W. G.O.
2" 216 232 216 51 420 - 200 - 25 -
2-1/2" 241 257 241 64 446 - 200 - 30 -
3" 283 298 283 76 537 - 250 - 48 -
4" 305 321 305 102 619 650 280 310 73 100
5" 381 397 381 127 722 750 300 310 99 126
6" 403 419 403 152 806 835 350 310 130 186
8" 419 435 419 203 1000 1030 400 310 208 235
10" 457 473 457 254 1240 1280 450 310 334 386
12" 502 518 502 305 1425 1460 500 310 450 502
14" 762 778 762 337 1585 1620 600 460 704 756
16" 838 854 838 387 1790 1830 500 460 923 965
18" 914 930 914 438 1960 2000 650 460 1131 1224
20" 991 1010 991 489 2158 2220 750 460 1345 1400
24" 1143 1165 1143 591 2576 2620 900 600 2122 2385
28" 1346 1372 1346 684 - 3080 - 600 - 3300
30" 1397 1422 1397 735 - 3180 - 600 - 3550
32" 1524 1553 1524 779 - 3300 - 600 - 4400
36" 1727 1756 1727 874 - 3760 - 600 - 6050

Note: The dimensions of RF, RTJ, BW end, please download the technology data from our website.


ANSI 600 / 900 LB
ANSI 1500 LB
NPS L ∮d H H1 ∮W ∮W1 Weight (Kgs)
RF RTJ BW H.W. G.O.
2" 368 371 368 51 510 - 280 - 70 -
2-1/2" 419 422 419 64 560 - 300 - 110 -
3" 470 473 470 76 620 670 350 310 175 202
4" 546 549 546 102 728 770 400 310 270 300
5" 673 676 673 127 870 770 450 310 378 405
6" 705 711 705 144 1000 1070 500 460 520 575
8" 832 841 832 192 1130 1180 750 460 820 915
10" 991 1000 991 239 1360 1410 900 600 1560 1750
12" 1130 1146 1130 287 - 1620 - 600 - 2120
14" 1257 1276 1257 315 - 2020 - 600 - 2600
16" 1384 1407 1384 360 - 2180 - 600 - 3450
ANSI 2500 LB
NPS L ∮d H H1 ∮W ∮W1 Weight (Kgs)
RF RTJ BW H.W. G.O.
2" 451 454 451 42 530 580 280 310 100 130
2-1/2" 508 514 508 52 580 630 300 310 150 180
3" 578 584 578 62 650 700 350 310 245 275
4" 673 683 673 87 750 800 400 460 390 420
5" 794 807 794 96 900 960 500 460 550 580
6" 914 927 914 131 1040 1100 600 460 780 835
8" 1022 1038 1022 179 1150 1200 750 460 1260 1355
10" 1270 1292 1270 223 1400 1460 900 600 2380 2565
12" 1422 1445 1422 265 - 1660 - 600 - 3250
Note: The dimensions of RF, RTJ, BW end, please download the technology data from our website.


ANSI 1500 / 2500 LB
ANSI 1500 LB
NPS L ∮d H H1 ∮W ∮W1 Weight (Kgs)
RF RTJ BW H.W. G.O.
2" 368 371 368 51 510 - 280 - 70 -
2-1/2" 419 422 419 64 560 - 300 - 110 -
3" 470 473 470 76 620 670 350 310 175 202
4" 546 549 546 102 728 770 400 310 270 300
5" 673 676 673 127 870 770 450 310 378 405
6" 705 711 705 144 1000 1070 500 460 520 575
8" 832 841 832 192 1130 1180 750 460 820 915
10" 991 1000 991 239 1360 1410 900 600 1560 1750
12" 1130 1146 1130 287 - 1620 - 600 - 2120
14" 1257 1276 1257 315 - 2020 - 600 - 2600
16" 1384 1407 1384 360 - 2180 - 600 - 3450
ANSI 2500 LB
NPS L ∮d H H1 ∮W ∮W1 Weight (Kgs)
RF RTJ BW H.W. G.O.
2" 451 454 451 42 530 580 280 310 100 130
2-1/2" 508 514 508 52 580 630 300 310 150 180
3" 578 584 578 62 650 700 350 310 245 275
4" 673 683 673 87 750 800 400 460 390 420
5" 794 807 794 96 900 960 500 460 550 580
6" 914 927 914 131 1040 1100 600 460 780 835
8" 1022 1038 1022 179 1150 1200 750 460 1260 1355
10" 1270 1292 1270 223 1400 1460 900 600 2380 2565
12" 1422 1445 1422 265 - 1660 - 600 - 3250
Note: The dimensions of RF, RTJ, BW end, please download the technology data from our website.

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ASTECH VALVE CO.,LTD. is a professional manufacturer specializes in manufacturing Gate Valve - Parts and Material List. In order to achieve quality management and the quality assurance requirements, we especially make the quality manual to ensure that the products are produced in accordance to meet customer requirements. Moreover, we continually develop the innovative Gate Valve - Parts and Material List to meet the various market demands and bring multiple benefits to customers always. Please feel free to leave us a message if you have any questions. We will reply to you as soon as possible and offer you our best services.