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Check Valves: Dual Plate Check Valves - HUB Ended Type
 

Dual Plate Check Valves
HUB Ended Type


Drawings

Dimensions

Size inches

Pressure Rating

End Facing

A (2)
inches

B (2,4)
inches

APPROX WEIGHT

Ib

kg

2

 

900
1500
2500

Hub
Hub
Hub 

4.375
4.375
4.625 

5.375
5.375
5.375 

20
20
20

9
9
9 

3

900
1500
2500

Hub
Hub
Hub

5.5
5.875
6.375 

6.125
6.125
6.25 

41
45
53 

18
20
24

4 

900
1500
2500

Hub
Hub
Hub 

6.688
7.25
7.875 

8.688
8.688
8.813 

84
97
116 

38
44
52 

6

900
1500
2500 

Hub
Hub
Hub

8.188
10.125
11.5 

11
11
11

160
244
315 

72
110
142 

8

900
1500
2500 

Hub
Hub
Hub 

11.75
12.875
14.25 

11.625
11.625
11.625

350
419
515 

158
190
233 

10

900
1500
2500 

Hub
Hub
Hub 

14.188
15.938
16.625 

14.313
14.313
14.438 

627
790
871

284
358
395

12

 

900
1500
2500 

Hub
Hub
Hub 

16.625
18.5
20.125 

16.5
16.5
16.5 

994
1231
1457 

450
558
660 

14

900
1500 

Hub
Hub 

18.125
20 

19
19 

1365
1660

619
752 

16

900
1500 

Hub
Hub 

21.125
23.25 

21
21

2050
2484 

929
1126 

18

900
1500 

Hub
Hub 

23.5
26 

23
23 

2781
3402 

1261
1543 
 
Options

1. This Type is supplied with external threaded retainers

2. Full bore Retainerless,  with no external threaded components can be supplied. Dimensions A and B are larger and available on application.

3. Particular make of Hub Ended and Clamp Style must be specified by customer. Relevant technical information should be obtained from the chosen clamp supplier, e.g. Graylok®, Techlok®, Clamplok®.

4. SPECIAL NOTE - Due to the large variety of Hub End sizes and Clamp Styles available it may be necessary to alter the face to face dimensions shown in column 'B' above in order to maintain ANSI and API design specifications.

5. Valve sizes not listed above are available on application, together with customer specified end sizes and types. All valves are rated in accordance with ANSI B 16.34 (VALVES-FLANGED THREADED, AND WELDING END Standard), API 594 (CHECK VALVES: WAFER, WAFER-LUG, AND DOUBLE FLANGED TYPE Standard) and API 598 (VALVE INSPECTION AND TESTING Standard) design and application specifications.
Exploded View
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