Find My Check Valve
The SCV-R® is an in-line spring-assisted check valve designed for applications requiring "higher cracking pressures" than the DFT® Model SCV® check valve. The SCV-R® is a self-contained check valve that installs directly in a pipeline and contains all of the proven features of the SCV® check valve.

Notes:
  • 3" is not available
  • Contact DFT® for other cracking pressures.
  • 750CWP is rated to 470ºF.
Unit of Measure

OLD NPT #

OLD PART #

N/A 8369-RC016

Specifications

Series

N/A SCV-R®

Size

N/A 1.00 inDN 25

Cold Working Pressure

N/A 0 to 750 psig0 to 51.7 barg

Dimension A

N/A 3.32 in84 mm

B (Dia.)

N/A 2.54 in65 mm

Weight

N/A 1.9 lb0.9 kg

Cracking Pressure CP

N/A 0.11 bar1.6 psig

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 17

Available Soft Seat Materials

N/A TFE®-Viton® (-40 to 400°F) Viton® (-40 to 400°F) Zelon® (37 to 470°F)

Materials of Construction

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.)

Body Material

N/A Alloy 20

Codes and Standards

ANSI

N/A B1.1 B1.20.1 B16.25 B16.34

MSS

N/A SP-126 SP-25 SP-61

ASTM

N/A A351GR CF8M

Features

N/A

  • 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® body "O" ring
  • Horizontal or vertical installation
  • Body guided disc
  • Tight shut-off - lapped disc & seat
  • Simplified construction - 5 parts
  • Easy maintenance
  • Versatile
  • Inconel® X-750 spring is standard

Options

Options

N/A
  • 316 SS Springs
  • Body seal weld (700°F Maximum)
  • Soft seat
  • Alloy 20 body & seat (ASME 300)
  • Hastelloy C body & seat (ASME 300)
  • NPT x socket weld ends
  • Butt weld ends
  • Repair kits
  • Field conversion kits

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.