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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DFT® Vacuum Breakers provide effective protection against collapse of pressure vessels, tanks and rolls. They prevent condensate "back-up" when equipment is shut down or inlet steam is reduced by modulating control valves. In piping systems, DFT® Vacuum Breakers are used to break siphons, prevent pipe collapse during transient pressure drops, and to provide addition of air on the downstream side of check valves to dampen water hammer.

Standard Features:
  • 1" to 4" Size (Outside Diameter)
  • 450 to 6000 CWP
  • Threaded O.D. (MNPT)
  • Unthreaded Inlet Bore
  • Stainless Steel Construction
  • Spring-Assisted Silent Closing
  • Horizontal or Vertical Installation
  • Tight Shutoff - Lapped Disc & Seat
  • Easy Maintenance
  • Versatile
Vacuum Breaker Threaded In-Line Check Valves
Unit of Measure
1 

Prod. #

Size

Nominal Size (MNPT) A

Unthreaded Inlet Bore B

Style

Valve Cracking Pressure

Cold Working Pressure

Seat

CAD Download

Inventory

Rfi_link

Inventory

List Price

8094 N/A 1 in N/A 1.00 in N/A 0.56 in N/A BSSV6 N/A 0.6 psi0.041 bar16.7 in.water N/A 0 psig6000 psig N/A 316 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8103 N/A 1 in N/A 1.00 in N/A 0.56 in N/A BSSV N/A 0.24 psi0.017 bar6.6 in.water N/A 0 psig2500 psig N/A 303 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8033 N/A 1 in N/A 1.00 in N/A 0.56 in N/A BSSV N/A 0.6 psi0.041 bar16.7 in.water N/A 0 psig2500 psig N/A 303 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8034 N/A 1.5 in N/A 1.50 in N/A 0.88 in N/A BSSV N/A 0.44 psi0.03 bar12.1 in.water N/A 0 psig2000 psig N/A 303 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8095 N/A 1.5 in N/A 1.50 in N/A 0.88 in N/A BSSV6 N/A 0.44 psi0.03 bar12.1 in.water N/A 0 psig5500 psig N/A 316 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8035 N/A 2 in N/A 2.00 in N/A 1.09 in N/A BSSV N/A 0.36 psi0.025 bar10.1 in.water N/A 0 psig1500 psig N/A 303 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8096 N/A 2 in N/A 2.00 in N/A 1.09 in N/A BSSV6 N/A 0.36 psi0.025 bar10.1 in.water N/A 0 psig3000 psig N/A 316 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8036 N/A 2.5 in N/A 2.50 in N/A 1.50 in N/A BSSV N/A 0.16 psi0.011 bar4.5 in.water N/A 0 psig850 psig N/A 303 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8097 N/A 2.5 in N/A 2.50 in N/A 1.50 in N/A BSSV6 N/A 0.16 psi0.011 bar4.5 in.water N/A 0 psig1100 psig N/A 316 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8098 N/A 3 in N/A 3.00 in N/A 1.72 in N/A BSSV6 N/A 0.15 psi0.01 bar4.2 in.water N/A 0 psig900 psig N/A 316 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8037 N/A 3 in N/A 3.00 in N/A 1.72 in N/A BSSV N/A 0.15 psi0.01 bar4.2 in.water N/A 0 psig700 psig N/A 303 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8099 N/A 4 in N/A 4.00 in N/A 2.22 in N/A BSSV6 N/A 0.1 psi0.007 bar2.6 in.water N/A 0 psig450 psig N/A 316 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
8038 N/A 4 in N/A 4.00 in N/A 2.22 in N/A BSSV N/A 0.1 psi0.007 bar2.6 in.water N/A 0 psig450 psig N/A 303 SS N/A CAD Icon (for items table) N/A
{0} 		N/A N/A QUOTE
Unit of Measure
1