Class 125 | Cast Iron Silent Check Valve | ASTM A126-B | 2” to 12” | Wafer
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SSI products are engineered and manufactured to provide high-quality valves at competitive prices. SSI has successfully developed a reputation for manufacturing industry leading cast iron silent check valves.
As well as cast iron silent check valves, SSI also manufactures basket strainers, butterfly valves, triple duty valves, suction diffusers, y-strainers, foot valves utilizing state-of-the-art, computer controlled, automated machining equipment.
Cast Iron Silent Check Valve
Product Description:
SSI manufactures cast iron silent check valves that are long-lasting, functional, cost-effective, and are well suited for commercial and industrial use. SSI cast iron silent check valves are suitable for a full range of steam, liquid, gas & oil, power, pulp & paper, process equipment, chemical, metal & mining and water & waste applications. Single disc cast iron center guided check valves with wafer body style are designed to ASME B16.1. The check valves feature metal to metal seats with bronze or stainless steel disc options that are center guided from both ends.
Features Include:
• Pressure rated to 200 PSIG
• Available in sizes of 2″ to 12″
• Designed to reduce surge and water hammer
• Wafer body style fits between FF or RF flanges
• Temperatures to 300º F
• Silent, non-slam closure
• Compact face to face length for space saving
• Center guided at both ends to prevent binding
End Connection:
• Wafer

Our SSI Cast Iron Silent Check Valves have the following Build of Materials and Product Specifications:
No. | Part Name | Materials |
---|---|---|
1. | Body | A126-B Cast Iron |
2. | Discs | AI/Bz B148 C954 or 316SS A351-CF8M |
3. | Seat | Bronze or SS |
4. | Spring | 316SS |
5. | O-Ring | EPDM |
DIMENSIONS inches (mm) and WEIGHTS pounds (kg) | ||||||||||
Size | A | B* | QTY | Stud Selection Dia.Length |
Weight | |||||
---|---|---|---|---|---|---|---|---|---|---|
12 (300) |
111/4 (289) |
161/8 (410) |
12 | 7/8 (22) |
161/4 (311) |
304 (137.9) |
||||
10 (250) |
87/32 (209) |
133/8 (340) |
12 | 7/8 (22) |
121/4 (311) |
146 (66.2) |
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8 (200) |
61/2 (165) |
11 (279) |
8 | 3/4 (19) |
111/4 (286) |
87 (39.5) |
||||
6 (150) |
59/16 (142) |
83/4 (222) |
8 | 3/4 (19) |
101/2 (267) |
42 (19.1) |
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5 (125) |
45/8 (118) |
73/4 (197) |
8 | 3/4 (19) |
83/4 (222) |
30 (13.6) |
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4 (100) |
4 (103) |
67/8 (175) |
8 | 5/8 (16) |
8 (203) |
19 (8.6) |
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3 (80) |
33/16 (68) |
53/8 (137) |
4 | 5/8 (16) |
7 (178) |
10 (4.5) |
||||
21/2 (65) |
27/8 (73) |
47/8 (124) |
4 | 5/8 (16) |
63/4 (171) |
8 (3.6) |
||||
2 (50) |
211/16 (68) |
41/8 (105) |
4 | 3/4 (16) |
61/2 (165) |
5 (2.3) |
For almost 15 years, ValvSource Equipment has continually committed itself to offer the best cast iron silent check valve products to meet a wide range of applications and requirements.
As an industry leader, ValvSource Equipment has your perfect cast iron silent check valves solution. Our success in the valves industry is attributed to our customer-centric team of sales personnel, engineers, and trained staff that are collectively committed to providing quality products at a price you would come to expect.
To find your perfect valve solution, please call ValvSource Equipment today or email us at [email protected].