DFT® Inc
DFT® Inc
140 Sheree Blvd. PO Box 566
Exton, PA 19341-0566
Phone: 800.206.4013
Fax: 847.540.1422
Email: dft@dft-valves.com
Website: www.dft-valves.com
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The FBC® Check Valve is a compact, lightweight, insert wafer check valve that easily installs between two flanges. The non-slam, spring-assisted design prevents "water hammer" and "reverse flow". The FBC® Check Valve contains all the proven features of the Basic-Check® valve developed originally by DFT® and still in use after 70 years. Like the Basic-Check® Valve, the metal-to-metal sealing area of the disc and seat is precision lapped, providing tight shutoff for applications involving liquids, gases, or steam. Resilient soft seats are available for applications requiring bubble-tight shutoff.

Standard Features:
  • Sizes 1" thru 4"
  • ASME/ANSI Class 150 and 300
  • Stainless steel seat, disc, guard, retaining ring & spring
  • Extended tag for easy identification of the installed valve
  • Use in Schedule 40 or Schedule 80 pipe
  • Horizontal or Vertical installations
  • Meets ASME B16.34 & MSS SP-126
  • Flange finish per MSS SP-6
  • Spring-assisted silent closing
FBC® Insert Wafer Check Valves
Unit of Measure
Items FBC® Insert Wafer Check Valves
8140-51
1" 316 SS 150/300 ASME Class FBC® Insert Wafer Check Valve, Viton® 		FBC® Insert Wafer Check Valves
8140-57
1" 316 SS 150/300 ASME Class FBC® Insert Wafer Check Valve, EPDM 		FBC® Insert Wafer Check Valves
8140
1" 316 SS 150/300 ASME Class FBC® Insert Wafer Check Valve 		FBC® Insert Wafer Check Valves
8140-49
1" 316 SS 150/300 ASME Class FBC® Insert Wafer Check Valve, Buna-N 		FBC® Insert Wafer Check Valves
8140-98
1" 316 SS 150/300 ASME Class FBC® Insert Wafer Check Valve, TFE®-Viton®
Series N/A FBC®
Size N/A 1.00 in
Cold Working Pressure N/A 275 psig720 psig N/A 275 psig720 psig N/A N/A 275 psig720 psig N/A 275 psig720 psig
Working Steam Pressure N/A
ASME CLASS N/A 150 300
Dimension A N/A 0.868 in
Dimension B N/A 0.25 in N/A 0.25 in N/A 0.250 in N/A 0.25 in N/A 0.25 in
Dimension C N/A 1.03 in N/A 1.03 in N/A 1.029 in N/A 1.03 in N/A 1.03 in
ANSI N/A B16.34 N/A B16.34 N/A N/A B16.34 N/A B16.34
O.D. N/A 2 in N/A 2 in N/A 2.00 in N/A 2 in N/A 2 in
Weight N/A 0.2 lb
Temperature Rating1 N/A -40 to 400 ºF-40 to 204.44 ºC N/A -75 to 300 ºF-59.44 to 148.89 ºC N/A -425 to 450 ºF-254 to 232 ºC N/A -70 to 250 ºF-56.67 to 121.11 ºC N/A -40 to 400 ºF-40 to 204.44 ºC
Seat N/A 316 SS/Viton® N/A 316 SS EPDM N/A A479 316 N/A 316 SS/Buna N/A 316 SS/TFE®-Viton®
Cracking Pressure CP N/A 0.60 psig0.041 bar
Disc N/A 316 SS
Guard N/A 316 SS
Spring N/A 316 SS
Retaining Ring N/A BUNA-N EPDM TFE®-Encapsulated Viton® Viton® Zelon® N/A BUNA-N EPDM TFE®-Encapsulated Viton® Viton® Zelon® N/A 316 SS N/A BUNA-N EPDM TFE®-Encapsulated Viton® Viton® Zelon® N/A BUNA-N EPDM TFE®-Encapsulated Viton® Viton® Zelon®
Available Soft Seat Materials2 N/A Buna-N (-70 to 250ºF) EPDM (-75 to 300ºF) TFE®-Viton® (-40 to 400ºF) Viton® (-40 to 400ºF) Zelon® (37 to 470ºF)
MSS N/A SP-126, SP-61, SP-6 N/A SP-126, SP-61, SP-6 N/A SP-25 SP-6 SP-61 N/A SP-126, SP-61, SP-6 N/A SP-126, SP-61, SP-6
Applications 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 Gases Generator Inlet & Discharge Hydraulic Lines Liquids Metering Pumps Mine Dewatering Nitrogen Purge Process Lines Pump Discharge Refrigeration Steam Steam Lines Vacuum Breaker Water Lines Water Treatment
Cv N/A 5.8
ENDS N/A Wafer (RF)
  • 1 Pressure/Temperature ratings in accordance with ASME/ANSI B16.34
  • 2 Buna-N and Viton are not suitable for steam service