Leader Cast Steel Swing Check Valve
The Leader Cast Iron Swing Check Valve (Class 125) (Item Code: CI0017) is engineered to automatically prevent media backflow and protect critical piping equipment like boilers and pumps. Built under product standard DIN EN 12334 with flanged connections according to ASME B16.1 CL-125 (FF), it features a robust metal-to-metal seat design to withstand tough low-pressure utility service conditions.
Technical Specifications
|
Parameter |
Specification Details |
|
Item Code |
CI0017 |
|
Size Range |
25 mm to 600 mm |
|
Pressure Rating |
Class 125 (CL-125) |
|
Max Working Pressure |
12.54 Bar |
|
Max Working Temperature |
220°C |
|
Hydrostatic Body Test |
24.1 Bar |
|
Hydrostatic Seat Test |
13.8 Bar |
|
Design Standard |
DIN EN 12334 |
|
Testing Standard |
Manufacturing Standard |
|
End Connections |
Flanged ends per ASME B16.1 CL-125 FF (other drillings available on request) |
|
Suitable Media |
Potable water, treated fresh water, neutral liquids, oil, air, gases, steam |
Key Features & Design Highlights
- Automatic Operation: Closes immediately upon flow reversal via back pressure and check weight—no actuator or manual intervention required.
- Galling & Scoring Prevention: Seat design prohibits galling or scoring of seating surfaces.
- Easy Maintenance Access: Large bolted-on cover allows direct interior access for routine inspection and upkeep.
- One-Piece Disc Construction: Designed for high structural rigidity and minimal wear to ensure long operational reliability.
- Versatile Installation: Can be installed in horizontal or vertical lines (must align with line flow arrow).
- Certification Options: Available with IBR certification up to 200 mm size. Soft seating is recommended for tight sealing in air applications.
Material Specifications
|
Part No. |
Name of Part |
Material |
Standard / Specification |
|
1 |
Body |
Cast Iron |
IS 210 Gr. FG200 |
|
2 |
Body Seat Ring |
Gun Metal / S.S. |
BSEN 1982 CC491K / 13% Cr. STEEL |
|
3 |
Disc Facing Ring |
Gun Metal / S.S. |
BSEN 1982 CC491K / 13% Cr. STEEL |
|
4 |
Disc |
Cast Iron |
IS 210 Gr. FG200 |
|
5 |
Hinge |
Cast Steel / Cast Iron |
ASTM A216 Gr. WCB / FG 200 |
|
6 |
Hinge Pin |
High Tensile Brass / S.S. |
BSEN 1982 CC491K / 13% Cr. STEEL |
|
7 |
Gasket |
C.N.A.F. |
BS 1832 |
|
8 |
Cover |
Cast Iron |
IS 210 Gr. FG200 |
|
9 |
Studs & Nuts |
Carbon Steel |
BS 916 |
|
10 |
Nuts |
High Tensile Brass |
BS 2872 Gr. CZ114 |
|
11 |
Washer |
Brass / Gun Metal |
BS 2872 / BSEN 1982 CC491K |
Dimensional Data (Class 125 Flanged)
|
Size (mm) |
L (mm) |
~H (mm) |
ØC (mm) |
ØD (mm) |
B (mm) |
K / PCD (mm) |
n (Holes) |
d (mm) |
|
25 |
152 ±1.6 |
95 |
25.4 |
110 |
11.1 |
79 |
4 |
15.9 |
|
32 |
180 ±1.6 |
112 |
32 |
115 |
12.7 |
88.9 |
4 |
15.9 |
|
40 |
165 ±1.6 |
110 |
38 |
127 |
14.3 |
98 |
4 |
15.9 |
|
50 |
203 ±1.6 |
115 |
51 |
152 |
15.9 |
121 |
4 |
19 |
|
65 |
216 ±1.6 |
135 |
63.5 |
178 |
17.5 |
140 |
4 |
19 |
|
80 |
241 ±1.6 |
135 |
76 |
191 |
19 |
152 |
4 |
19 |
|
100 |
292 ±1.6 |
190 |
101.5 |
229 |
23.8 |
191 |
8 |
19 |
|
125 |
330 ±1.6 |
192 |
127 |
254 |
23.8 |
216 |
8 |
22.2 |
|
150 |
356 ±1.6 |
200 |
152 |
279 |
25.4 |
241 |
8 |
22.2 |
|
200 |
495 ±1.6 |
265 |
203 |
343 |
28.6 |
299 |
8 |
22.2 |
|
250 |
622 ±1.6 |
335 |
254 |
406 |
30.2 |
362 |
12 |
25.4 |
|
300 |
698 ±3.2 |
365 |
305 |
483 |
31.8 |
432 |
12 |
25.4 |
|
350 |
787 ±3.2 |
415 |
355.5 |
533 |
34.9 |
476 |
12 |
28.6 |
|
400 |
914 ±3.2 |
470 |
406.5 |
597 |
36.5 |
540 |
16 |
28.6 |
|
450 |
965 ±3.2 |
495 |
457 |
635 |
39.7 |
578 |
16 |
31.8 |
|
500 |
1067 ±3.2 |
600 |
508 |
698.5 |
43 |
635 |
20 |
31.8 |
|
600 |
1295 ±3.2 |
680 |
600 |
812.8 |
47.8 |
749.3 |
20 |
35 |
Dimensions legend: L = Face-to-Face Length, ~H = Height, ØC = Internal Bore Diameter, ØD = Flange Outer Diameter, B = Flange Thickness, K = Pitch Circle Diameter (PCD), n = Number of Flange Bolt Holes, d = Bolt Hole Diameter.
