Find My Check Valve
The DFT® Model DLC® 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 DLC® provides tight shut-off and protects other equipment in the system from water hammer. Its stainless steel construction insures a long service life.
Inconel® X-750 spring is standard
Unit of Measure

OLD NPT #

OLD PART #

N/A 9414

Specifications

Series

N/A DLC®

ASME CLASS

N/A 300

Size

N/A 1.50 inDN 40

Dimension A

N/A 9.50 in241 mm

Dimension B

N/A 6.12 in155 mm

Weight

N/A 18.5 lb8.4 kg

Cracking Pressure CP

N/A 0.017 bar0.24 psig

Temperature Rating

N/A -460 to 700 ºF-273 to 371 ºC
Pressure Rating1 N/A 0 psig720 psig0 barg49.6 barg

ENDS

N/A FLG (RF)

Cv

N/A 54

Materials of Construction

Trim

N/A A351 CF8M/316 SS

Body

N/A A351 CF8M

Seat

N/A A351 CF8M

Spring

N/A Inconel® X-750

Disc

N/A 316 SS

Body Material

N/A Alloy 20

Codes and Standards

ANSI

N/A B16.10 B16.34 B16.5

MSS

N/A SP-126 SP-25 SP-61
Other Standards2 N/A CRN NACE

Options

Options

N/A 316 SS Spring Alloy 20 Hastelloy® NACE

N/A

  • 316 SS Springs
  • Body Materials
    - Alloy 20
    - Hastelloy® C
    - NACE
  • Soft-Seat (Teflon Encapsulated Viton only)

Features

N/A

  • ANSI B16.10 Face-to-Face dimensions
  • Spring-assisted silent closing, non-slam
  • 1/2" to 3" Line size
  • ASME 150 and 300
  • Stainless Steel Construction
  • Raised Face Flanged ends
  • Inconel® X-750 spring
  • Electron beam welded body
  • Meets ASME B16.34 - 2004
  • Horizontal or vertical installation
  • Body guided disc
  • Tight shut-off - lapped disc & seat
  • Simplified construction - 4 parts
  • Versatile

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 ASME B16.34-2004
  • 2 Contact DFT for NACE.