Class 300 | Stainless Steel Double Door Check Valve | ASTM A351 | 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 stainless steel double door check valves.
As well as stainless steel double door 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.
Stainless Steel Double Door Check Valve
Product Description:
SSI manufactures stainless steel double door check valves that are long-lasting, functional, cost-effective, and are well suited for commercial and industrial use. SSI stainless steel double door 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.
Dual disc stainless steel double door check valves with wafer body style designed to ASME B16.34 and API 594. The check valves feature an integral cast bumper and Buna-N or Viton resilient seats with stainless steel discs.
Features Include:
• Pressure rated to 740 PSIG
• Available in sizes of 2″ to 12″
• Upper and lower stainless steel thrust washers
• Shock bumpers minimize stresses in hinge pins
• Dual rating 2″-3″ 150#, 300# and 600# Classes
• Independent springs optimizes plate closing rates while minimizing spring stress
• Temperatures to 600º F
• Resilient Buna-N and Viton seats
• Wafer body style fits between FF or RF flanges
• Seat design lifts then swings discs to minimize wear
• Dual ratings 4″ 150# and 300# Classes
End Connection:
• Wafer
Our SSI Stainless Steel Double Door Check Valves have the following Build of Materials and Product Specifications:
| No. | Part Name | Stainless Steel |
|---|---|---|
| 1. | Body | A351-CF8M |
| 2. | Discs | A351-CF8M |
| 3. | Seat | Viton |
| 4. | Spring | 304 SS |
| DIMENSIONS inches (mm) and WEIGHTS pounds (kg) | ||||||||||
| Size | A | B* | C2 | D | E | Stud Selection Qty.Dia.Length |
Weight | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 12 (300) |
71/8 (181) |
165/8 (422) |
111/4 (286) |
123/4 (324) |
33/8 (86) |
16 | 11/8 (29) |
145/8 (372) |
196 (89.0) |
|
| 10 (250) |
53/4 (146) |
141/4 (362) |
91/2 (241) |
103/4 (273) |
27/8 (73) |
16 | 1 (25) |
123/4 (324) |
123 (55.8) |
|
| 8 (200) |
5 (127) |
121/8 (308) |
73/8 (187) |
85/8 (219) |
2 (51) |
12 | 7/8 (22) |
111/4 (286) |
75 (35.0) |
|
| 6 (150) |
37/8 (99) |
97/8 (251) |
53/8 (137) |
65/8 (168) |
13/8 (35) |
12 | 3/4 (19) |
95/8 (245) |
44 (20.0) |
|
| 44 (100) |
150WT | 27/8 (73) |
67/8 (175) |
33/8 (86) |
41/2 (114) |
3/4 (19) |
8 | 5/8 (16) |
7 (178) |
18 (8.2) |
| 300WT | 27/8 (73) |
71/8 (181) |
33/8 (86) |
41/2 (114) |
3/4 (19) |
8 | 3/4 (19) |
81/8 (207) |
18 (8.2) |
|
| 33 (80) |
Use 3″ 600WT 300# on page 191 | |||||||||
| 21/23 (66) |
Use 21/2″ 600WT 300# on page 191 | |||||||||
| 23 (50) |
Use 2″ 600WT 300# on page 191 | |||||||||
SSI Products Catalogue
Download more in-depth technical specifications for our line of stainless steel double door check valves by clicking on any of the above literature thumbnails.
For almost 15 years, ValvSource Equipment has continually committed itself to offer the best stainless steel double door check valve products to meet a wide range of applications and requirements.
As an industry leader, ValvSource Equipment has your perfect stainless steel double door 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].