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Prod. # 8373A20, 750 CWP/500 WSP 1 1/2″ NPT Alloy 20 SCV® Threaded In-Line Check Valve
Description
The DFT® Model SCV is a corrosion resistant, dependable, versatile and economical spring-assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the SCV provides tight shut-off and protects other equipment in the system from water hammer. Its stainless steel construction insures a long service life.
750CWP is rated to 470°F.
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SCV®
DN 40
1.5 in
0 to 750 psig
0 to 51.7 barg
500 psig
4.75 in
121 mm
3.44 in
87 mm
4.7 lb
2.1 kg
54
0.24 psig
0.017 bar
NPT
37 to 470 ºF
3 to 243 ºC
A351 CN7M
Alloy 20
A351 CN7M
Alloy 20
Hastelloy C276
Zelon (470°F max.)
1 Soft seats are available for bubble-tight shutoff. Body seal and soft seat material are the same unless otherwise requested.
Seal Weld (-425 to 700°F)
TFE® -Viton (-40 to 400°F)
Zelon® (37 to 470°F)
Buna-N (-70 to 250°F)
EPDM (-75 to 300°F)
Viton (-40 to 400°F)
Hastelloy C276
SWE Available
750 CWP
3600 CWP
316 SS/316 SS – Standard
Alloy 20 – Optional
Hastelloy® C – Optional
1 NPT x SW available.
B1.1
B1.20.1
B16.34
SP-126
SP-25
SP-61
A351GR CF8M
1 Contact DFT for NACE.
- 1/2″ to 3″ Line size
- 750 & 3600 CWP
- NPT & SW ends
- Stainless Steel Construction
- Inconel® X-750 spring
- Spring-assisted silent closing, non-slam
- Zelon® body “O” ring
- Horizontal or vertical installation
- Body guided disc
- Tight shut-off – lapped disc & seat
- Simplified construction – 5 parts
- Easy maintenance
- Versatile
- 316 SS Springs
- Body seal weld (700°F Maximum)
- Soft seat
- Alloy 20 body & seat (ASME 300)
- Hastelloy C body & seat (ASME 300)
- Socket weld ends
- SCV-R restrictor check (higher cracking pressure)
- Butt weld ends
- NACE
- API 6D
- Light cracking pressure springs
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Product Literature
Cut Sheet (SCV® Threaded In-Line Check Valves) (PDF)
Water Hammer (PDF)
Features (PDF)
Pressure Temperature Rating (PDF)
Applications (PDF)
Technical Information (PDF)
Additional Literature
NACE (PDF)
Zelon Technical Information (PDF)
Canadian Registration Numbers (PDF)
Check Valves: Key Considerations to Make When Designing Fluid or Gas Flow Systems (PDF)
