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Check Valves
Cast Iron
Type CD125IS Wafer - Double Door - Dual Disc- Check Valve
 The Eco (Economical) Dual Plate Check Valve features ease of maintenance and exceptional flow characteristics.
  • Body gives compact, one-piece wafer design
  • Dual plate valves give maximum strength with minimum opening time
  • Full contact seats maintain positive shut-off at minimum working pressure
  • Torsion springs assist valve closure, preventing flow reversal
  • Shaft is of extra heavy duty, corrosion resistant construction
  • Shaft supports with large bearings act as stops to prevent over travel of plates
  • Thrust washers reduce friction and wear of valve plate hinges.
  • Model CD125IS with 316SS Discs
Operating Pressures and Temperatures
Service
Size
psi
Temp
WOG
2" - 12"
200
200°F
WOG
14" - 54"
150
200°F
Construction
No
 Name Material
1
 Seat/Seal Buna-N
2
 Discs A351 Gr. CF8M Stainless Steel
3
 Shaft A351 Gr. CF8M Stainless Steel
4
 Torsion Spring A351 Gr. CF8M Stainless Steel
5
 Cast Body A126 Class B Cast Iron

Ordering Information
Example: Include Full Description
Size (Prefix)
Model #
0400
CD125IS

4", Cast Iron Wafer Check Valve, BUNA-N Seat, 316SS Discs.

Dimensional Data
Size Inches
Model
A
B
C
Shipping Weight (lbs)
2
0200
2 1/8
4 1/8
2 3/8
6
2 1/2
0250
2 1/8
4 7/8
2 5/16
7
3
0300
2 1/4
5 3/8
3 3/4
10
4
0400
2 1/2
6 3/8
4 1/2
14
5
0500
2 3/4
7 11/16
5 11/16
19
6
0600
3
8 3/4
6 5/8
25
8
0800
3 3/4
11
8 5/8
42
10
1000
4 1/4
13 3/8
10 3/4
72
12
1200
5 5/8
16
12 5/8
116
14
1400
7 1/4
16 5/8
13 11/16
182
16
1600
7 1/2
20 1/2
16 11/16
243
18
1800
8
21 5/8
18
334
20
2000
8 3/8
23 7/8
20 1/4
430
24
2400
8 3/4
28 1/4
23 3/4
582
26
2600
11 1/4
30 1/2
24 3/4
1,128
28
2800
12 5/8
32 3/4
27 5/8
1,293
30
3000
12
34 13/16
30 1/8
1,356
32
3200
14 1/2
37
30 11/16
1,746
36
3600
14 1/2
41 1/4
34
2,125
40
4000
16
45 3/4
38 13/16
3,011
42
4200
17
48
41 13/16
3,795
48
4800
20 5/8
54 1/2
47
5,566
54
5400
21 1/4
60 7/8
50 1/2
6,831
Notes
Manufacturer reserves the right to modify dimensions, materials, or design. Contact factory for certification.
Valves are designed to operate on vertical and horizontal flow, see note 1.

NOTE 1
Horizontal Flow: Valve must be installed with disc hinge pin in the vertical position, to insure proper operation.
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