PRODUCT

check@3x

Check valve

· Design

Cast steel check valves are designed and manufactured to provide maximum service life and dependability.
All check valves meet the design requirements of American Petroleum Institute standard API600 & 6D.BS EN 13709 and generally conform to American Society of Mechanical Engineers standard ASME B16.34.
Valves are available in a complete range of body/cover materials and trims.

· Ranges of materials

Standard body/cover materials include nine grades of carbon, low alloy and stainless steels,for special applications they can be supplied in other grades of alloy and stainless steel, there’s a full range of trim materials to match any service optional packing and gasket materials are available for a full range of service conditions.

Available Modifications

Trim changes

End Connection Modifications

Packing and Gasket Change

Operator Mounting

Handwheel Extensions

Pressures Equalizing

Customer Specified Coatings

Weld End Bore Changes

Oxygen & Chlorine Clearing & Packaging

Applicable standards

STEEL CHECK VALVES, BS 1868/API 594/API 6D

STEEL VALVES, ASME B16.34

FACE TO FACE, ASME B16.10

END FLANGES, ASME B16.5

BUTTWELDING ENDS, ASME B16.25

INSPECTION AND TEST, API 598/API 6D

Design descriptions

BC, BOLTED COVER

SWING TYPE, ANTI-ROTATION DISC

RENEWABLE SEAT RINGS

NON-PENETRATE DISC SHAFT

HORIZONTAL OR VERTICAL SERVICE

FLANGED OR BUTTWELDING ENDS

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Eyebolt BC End Connections
For 150Lb-8", 300Lb-8", 60OLb-6",900Lb/1500Lb/250OLb-4" & over. Bolted cover.welded cover and pressure seal bonnet in services requiring frequent cycling or with high pressure/temperature variations. A choice of flanged, RTJ flanged or buttwelding end for piping flexibility.
Body-to-Cover Joint Outside Lever And Weight Seat Rings
A male and female joint or tongue and groove joint is used 150Lb to 600Lb
valves.
Ring joint is used in the body to cover connection in 900Lb & higher rated valves.		 All external hinge pin swing check valves 12" and smaller are available with an optional outside lever and weight, internal hinge available with all swing check valves. Separate heavy duty, full ported rings for easy maintenance. Screwed or welded connection into body.
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Materials of parts
No Part Name ASTM Material
Carbon steel 1¼Cr-½Mo Carbon Steel
1 Body A216-WCB A217-WC6 A352-LCB
2 Cover A216-WCB A217-WC6 A352-LCB
3 Disc 1) A105+CR13 A182-F11+HF A350-LF2+CR13
4 Hinge A216-WCB A217-WC6 A352-LCB
5 Fork Part A216-WCB A217-WC6 A352-LCB
6 Seat Ring A105+CR13 A182-F11+HF A350-LF2+CR13
7 Hinge Pin A276-420 A276-304 A276-420
8 Disc Washer Carbon Steel A276-304 Carbon Steel
9 Disc Nut Carbon Steel A194-7 Carbon Steel
10 Disc Nut Pin Carbon Steel A276-420 Carbon Steel
11 Gasket Spiral Wound(Graphite+304)
12 Stud A193-B7 A193-B16 A320-L7
13 Stud Nut A194-2H A194-7 A194-4
14 Eyebolt 2) Carbon Steel
Note:1) Cast steel disc for NPS 4" and above.
2) NPS 6" & larger.
3) Disc and seat ring may either be solid facing material or a base material equal to or better than the body/bonnet material with facing as shown.
Dimensional datas of ANSI Class 150#
NPS DN 2 2½ 3 4 6 8 10 12 14 16 18 20 24 26 28 30 36 in
50 65 80 100 150 200 250 300 350 400 450 500 600 650 700 750 900 mm
L/L1
(RF/BW)		 8.00 8.50 9.50 11.50 14.00 19.50 24.50 27.50 31.00 34.00 38.50 38.50 51.00 51.00 57.00 60.00 77.00 in
203 216 241 292 356 495 622 698 787 864 978 978 1295 1295 1448 1524 1956 mm
L2
(RTJ)		 8.50 9.00 10.00 12.00 14.50 20.00 25.00 28.00 31.50 34.50 39.00 39.00 51.50 - - - - in
216 229 254 305 368 508 635 711 800 876 991 991 1308 - - - - mm
H 6.00 6.50 6.88 8.00 11.50 13.88 15.38 17.00 18.75 20.62 22.88 24.62 34.75 37.00 37.00 38.62 48.00 in
152 165 175 204 293 353 390 432 475 525 582 627 883 940 940 980 1220 mm
wt(kg) 14 20 25 40 71 118 177 263 353 542 632 855 970 1600 1600 1990 2760 RF/RTJ
10 12 17 29 57 96 143 227 295 468 552 755 831 1420 1420 1760 2230 BW
Dimensional datas of ANSI Class 300#
NPS DN 2 2½ 3 4 6 8 10 12 14 16 18 20 24 26 28 30 36 in
50 65 80 100 150 200 250 300 350 400 450 500 600 650 700 750 900 mm
L/L1
(RF/BW)		 10.50 11.50 12.50 14.00 17.50 21.00 24.50 28.00 33.00 34.00 38.50 40.00 53.00 53.00 59.00 62.75 82.00 in
267 292 318 356 444 533 622 711 838 864 978 1016 1346 1346 1499 1594 2083 mm
L2
(RTJ)		 11.12 12.12 13.12 14.62 18.12 21.62 25.12 28.62 33.62 34.62 39.12 40.75 53.88 54.00 60.00 63.75 - in
293 308 333 371 460 549 638 727 854 879 994 1035 1368 1372 1524 1619 - mm
H 6.00 6.50 6.88 8.00 11.50 13.88 15.38 17.00 18.75 20.62 22.88 24.62 34.75 35.88 37.00 38.62 48.00 in
152 165 175 204 293 353 390 432 475 525 582 627 883 910 940 980 1220 mm
wt(kg) 16 23 29 46 82 136 204 302 405 625 730 985 1115 1465 1840 2290 3180 RF/RTJ
11 13 18 31 61 103 155 245 315 503 593 812 895 1205 1525 1895 2395 BW
Dimensional datas of ANSI Class 600#
NPS DN 2 2½ 3 4 6 8 10 12 14 16 18 20 24 in
50 65 80 100 150 200 250 300 350 400 450 500 600 mm
L/L1
(RF/BW)		 11.50 13.00 14.00 17.00 22.00 26.00 31.00 33.00 35.00 39.00 43.00 47.00 55.00 in
292 330 356 432 559 660 787 838 889 991 1092 1194 1397 mm
L2
(RTJ)		 11.62 13.12 14.12 17.12 22.12 26.12 31.12 33.12 35.12 39.12 43.12 47.25 55.38 in
295 333 359 435 562 664 791 841 892 994 1095 1200 1407 mm
H 7.50 8.00 8.75 10.00 14.50 17.50 19.25 21.38 23.38 25.75 28.75 31.00 43.50 in
190 205 222 255 368 445 490 540 595 655 730 785 1105 mm
wt(kg) 24 35 44 70 125 207 310 460 615 945 1105 1495 1695 RF/RTJ
16 19 26 44 87 147 220 350 452 720 845 1160 1280 BW
Dimensional datas of ANSI Class 900#
NPS DN 2 2½ 3 4 6 8 10 12 14 16 18 20 24 in
50 65 80 100 150 200 250 300 350 400 450 500 600 mm
L/L1
(RF/BW)		 14.50 16.50 15.00 18.00 24.00 29.00 33.00 38.00 40.50 44.50 48.00 52.00 - in
368 419 381 457 610 737 838 965 1029 1130 1219 1321 - mm
L2
(RTJ)		 14.62 16.62 15.12 18.12 24.12 29.12 33.12 38.12 40.88 44.88 48.50 52.50 - in
371 422 384 460 613 740 841 968 1038 1140 1232 1334 - mm
H 9.50 10.00 11.00 12.50 18.12 22.00 24.00 26.50 29.38 32.00 33.50 38.75 - in
240 256 278 320 460 560 610 675 745 815 850 985 - mm
wt(kg) 37 54 68 109 195 321 481 711 956 1468 1870 2316 - RF/RTJ
21 25 34 58 115 194 290 461 597 950 1210 1533 - BW
Dimensional datas of ANSI Class 1500#
NPS DN L/L1
(RF/BW)		 L2
(RTJ)		 H WT
(kg)
2 50 14.50 368 14.62 371 9.50 240 40 29
2½ 65 16.50 419 16.62 422 10.00 256 63 47
3 80 18.50 470 18.62 473 13.00 330 70 49
4 100 21.50 546 21.62 549 14.75 375 115 84
6 150 27.75 705 28.00 711 18.88 480 250 152
8 200 32.75 832 33.12 841 23.50 595 470 310
10 250 39.00 991 39.38 1000 26.00 660 740 470
12 300 44.50 1130 45.12 1146 29.12 740 1100 710
14 350 49.50 1257 50.25 1276 30.88 785 1410 910
16 400 54.50 1384 55.38 1407 32.88 835 1600 1100
in mm in mm in mm in mm RF/RTJ BW
Dimensional datas of ANSI Class 2500#
NPS DN L/L1
(RF/BW)		 L2
(RTJ)		 H WT
(kg)
2 50 17.75 451 17.88 454 10.75 275 50 35
2½ 65 20.00 508 20.25 514 13.25 335 76 55
3 80 22.75 578 23.00 584 13.75 350 85 68
4 100 26.50 673 26.88 683 15.12 385 165 115
6 150 36.00 914 36.50 927 19.50 495 460 225
8 200 40.25 1022 40.88 1038 24.62 625 900 580
10 250 50.00 1270 50.88 1292 28.00 712 1300 860
12 300 56.00 1422 56.88 1445 35.62 905 1800 1150
14 350 - - - - - - - -
16 400 - - - - - - - -
in mm in mm in mm in mm mm mm
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