SWING CHECK VALVES
SWING CHECK VALVES
01.

SWING CHECK VALVES

Forged Carbon Steel / Forged Stainless Steel / Cast Carbon Steel / Cast Alloy Steel / Cast Stainless Steel / Cast Iron
SALIENT FEATURES

They are rugged and sturdy in construction

Body and bonnet casting have heavy metal section in excess of minimum requirement

Streamlined contours to ensure that the pressure drop is minimum

Close -fitting male and female joint retain gasket in position and accurately centers the working parts .

Special alloy of trim is highly heat resistant and non-corrodible .

Flat face of valve &seat lapped on flat surface lapping machine ensures better pressure tightness.

Lift type Valve decreases hammer blow on seat due to back pressure .

Lift Check valve Disc is of heavy one piece construction to withstand severe shock of Check valve service

Swing Check valve Disc is fastned securely to disc carrier by means of a lock nut and cotter pin , Disc is free to rotate to avoid localised wear.

A variety of end flange facing can be provided . Valve flanges can be drilled to different standards

INSPECTION: Third party inspection by Lioyds, Bureau Veritas, ABS, UHDE, Bax Council, EIL and IBR etc. are being regularly Carried out against customer requirement

Assembly Of Swing Check Valves:

Sr.No. QTY Description Material
1 1 Body ASTM a 216 Gr. WCB
2 1 Cover ASTM a 216 Gr. WCB
3 1 Lever ASTM a 216 Gr. WCB
4 1 Seat (Renewble) ASTM a 216 Gr. WCB + Stellite 6
5 1 Disc ASTM a 216 Gr. WCB + 13% Cr.
6 1 Hinge Pin ASTM a 479 Gr.410
7 1 Gasket SP.WND.SS 316 With Graphoil Filler
8 1 Nuts & Washer ASTM a 479 Gr.410
9 As Per Req. Stud & Nuts ASTM a 193 Gr.B7 & A 194 Gr.2H
10 1 Drain Plug ASTM a 479 Gr.304

Class 150 :

NOM SIZE 40MM 50MM 65MM 80MM 100MM 125MM 150MM 200MM 250MM 300MM
L 165 203 216 241 292 330 356 495 622 698
D 127 152 178 190 229 254 279 343 406 483
T 17.5 19 22 23.8 24 24 25 29 30 32
H 95 115 130 170 185 219 240 280 305 360

Class 300 :

NOM SIZE 40MM 50MM 65MM 80MM 100MM 125MM 250MM 200MM 250MM 300MM
L 229 267 292 318 356 400 444 559 622 711
D 156 165 191 210 254 279 318 381 444 521
T 21 22 25 29 32 35 36 41 48 51
H 102 121 136 181 203 235 254 305 321 384

Class 600 :

NOM SIZE 40MM 50MM 65MM 80MM 100MM 125MM 150MM 200MM 250MM 300MM
L 241 292 330 356 432 508 559 660 787 838
D 155.6 165.1 190.5 209.5 273 330.2 355.6 419.1 508 558.8
T 22.2 25.4 28.6 31.7 38.1 44.4 47.6 55.6 63.5 66.7
H 160 190 210 230 292 305 360 405 465 510

Class 900 :

NOM SIZE 40MM 50MM 650MM 80MM 100MM 125MM 150MM 200MM 250MM 300MM
L 305 371 422 384 460 562 613 740 841 968
D 177.8 215.9 244.5 241.3 292.1 349.2 381 469.9 546.1 609.6
T 31.7 38.1 38.1 38.1 44.4 50.8 55.6 63.5 69.9 79.4
H 210 259 275 252 315 340 400 525 585 625

Class 1500 :

NOM SIZE 50MM 65MM 80MM 100MM 150MM
L 368 419 470 546 705
D 216 245 267 311 394
T 38.1 41.3 47.6 54 82.5
H 260 282 300 420 500

SIZE

Type Class 2 3 4 5 6 8 10 12 14 16 18 20 24 28 30
Swing Check Valve 150 x x x x x x x x x x x x x x BS 1868
300 x x x x x x x x x x
600 x x x x x x x x x x
900 xy xy xy xy xy xy xy xy xy xy xy
1500 xy xy xy xy xy xy xy xy
2500 xy xy xy xy xy xy xy xy
x Bolted Bonnet Design
xy Bolted and Pressure Seal Design
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