Valves International

AIL Cast Steel Swing Check Valves
ASME Class 150, 300 and 600

AIL Cast Steel Swing Check Valves provide a full port without pockets from inlet to the valve seat. On the downstream side, the body is of generous proportions to permit the full swing of the disc which reduces disc erosion and flow resistance. All parts are accessible from the top for easy servicing.

Swing Check Valves are used to prevent the reversal of flow in horizontal or vertical lines. In vertical lines or for any angle from horizontal to vertical, they should be used for upward flow only.

Body

The body is cast with uniform sections and generous radius fillets to prevent stress concentrations.

Disc

The disc is of one piece construction designed to withstand severe service conditions.

Disc Assembly

The Disc is securely fastened to the Hinge by means of a lock nut with a cotter pin. The disc is free to rotate to avoid localised wear. The Hinge Pin of heat treated AISI 410 offers excellent wear resistant properties.

Seat Ring

The seal welded Seat Ring eliminates leakage through the path between the seat ring and body.

Check

Flange Drilling & Facing Finish

Flanged valves are finished with the end flanges faced, drilled and spot faced to the corresponding pressure class of ASME B16.5 RF.

The standard finish offered on the raised face is 125-250 µ in Rra (AARH) - spiral serration.

Standards

AIL Cast Steel Check Valves conform to BS 1868. They also meet the general requirements of API 600 including shell wall thickness.



AIL ASME CLASS 150 SWING CHECK VALVE


MATERIAL OF CONSTRUCTION
for standard valve
Item
 No.
Description Material
1  Body  ASTM A216 Gr. WCB
2  Body Seat Ring  ASTM A105 + HF
3  Disc  ASTM A216 Gr. WCB
 +13% Cr. Steel
4  Hinge  ASTM A216 Gr. WCB
5  Disc Washer  13% Cr.
6  Disc Nut  SS 304
7  Disc Nut Pin  13% Cr.
8  Hinge Pin  13% Cr.
9  Gasket  ASTM A308
10  Cover  ASTM A216 Gr.WCB
11  Stud  ASTM A193 Gr.B7
12  Stud Nut  ASTM A194 Gr.2H
   Pipe Plug  Steel
   Name Plate  SS 304
FIGURE No. 713 - 8

Check Valve Class 150


DIMENSIONS & WEIGHTS
ASME
Class
Valve
size
inch 2 3 4 6 8 10 12
mm 50 80 100 150 200 250 300
150 A inch 8 9.5 11.5 14 19.5 24.5 27.5
mm 203 241 292 356 495 622 698
B inch 6.5 7.1 8.4 10.7 13.2 16 19
mm 165 181 213 273 335 406 483
Weight lbs 46 75 108 194 370 616 909
kgs 21 34 49 88 168 280 413


AIL ASME CLASS 300 & 600 SWING CHECK VALVES

CLASS 300

Check Valve Class 300

CLASS 600

Check Valve Class 600

DIMENSIONS & WEIGHTS
ASME
Class
Valve
size
inch 2 3 4 6 8 10 12
mm 50 80 100 150 200 250 300
300 A inch 10.50 12.50 14.00 17.50 21.00 24.50 28.00
mm 267 317 356 444 533 622 711
B inch 6.50 7.50 9.00 11.00 13.50 14.50 16.25
mm 165 190 229 279 343 368 412
Weight lbs 53 99 154 332 532 733 990
kgs 24 45 70 151 242 333 450

DIMENSIONS & WEIGHTS
ASME
Class
Valve
size
inch 2 3 4
mm 50 80 100
300 A inch 11.50 14.00 17.00
mm 292 356 432
B inch 7.00 8.00 9.00
mm 178 203 229
Weight lbs 76 123 203
kgs 35 55 92

AIL

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E-Mail: valves@webpro.co.za

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