Standard Features:
- 1/2" to 2" Line Size
- 750 CWP
- NPT & SW Ends
- Stainless Steel Construction
- Inconel® X-750 Spring
- Spring-Assisted Silent Closing, Non-Slam
- Cracking Pressures: 0.8 to 40.8 psig
- Zelon® "O" Ring Body Seal
- Horizontal or Vertical Installation
- Body Guided Disc
- Tight Shutoff Lapped Disc & Seat
- Easy Maintenance
- 3" is not Available
- Contact DFT® for Other Cracking Pressures.
- 750CWP is Rated to 470ºF.
Specifications
Series |
N/A SCV-R® |
Size |
N/A 1.50 inDN 40 |
Cold Working Pressure |
N/A 0 to 750 psig0 to 51.7 barg |
Dimension A |
N/A 4.75 in121 mm |
B (Dia.) |
N/A 3.44 in87 mm |
Weight |
N/A 4.7 lb2.1 kg |
Cracking Pressure CP |
N/A 13.9 psig0.958 bar |
Cracking Pressure CP Tolerance |
N/A ±10% |
Temperature Rating |
N/A 37 to 470 ºF3 to 243 ºC |
ENDS |
N/A NPT |
Cv |
N/A 36 |
Available Soft Seat Materials |
N/A TFE®-Viton® (-40 to 400ºF) Viton® (-40 to 400ºF) Zelon® (37 to 470ºF) |
Materials of Construction
Body Material |
N/A Alloy 20 |
Body1 | N/A A351 CF8M |
Seat2 | N/A A351 CF8M |
Disc |
N/A 316 SS |
Spring |
N/A Inconel® X-750 |
Spring Retainer Assembly |
N/A 316 SS |
"O" Ring |
N/A Zelon (470°F max.) |
Codes and Standards
ASTM |
N/A A351GR CF8M |
ANSI |
N/A B1.1 B1.20.1 B16.25 B16.34 |
MSS |
N/A SP-126 SP-25 SP-61 |
Features
N/A
|
Options
N/A
|
Application
N/A Autoclaves Boiler Feed & Discharge Chemical Lines Compressor Discharge Condensate Lines Cookers Cooling Towers Crude & Refined Product Lines Cryogenics Digester Evaporators Fly Ash System Generator Inlet & Discharge Hydraulic Lines Metering Pumps Mine Dewatering Nitrogen Purge Process Lines Pump Discharge Refrigeration Steam Lines Vacuum Breaker Water Lines Water Treatment |
- 1 A351 CF8M is the casting equivalent of 316 SS.
- 2 Soft seats are available for bubble tight shutoff. Body seal and soft seat material are the same unless otherwise requested.