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Excess Flow Valves

Excess Flow Valves

  • Stop the uncontrolled release of system media when a downstream line ruptures
  • Reset automatically when pressure is restored
  • Reduce maintenance time
  • Eliminate the need for complex bypass mechanisms


Working Pressure Up to 6000 psig (413 bar)
Temperature –10 to 400°F (–23 to 204°C)
Body Materials 316 stainless steel
O-Ring Material Fluorocarbon FKM
End Connections
   Type Swagelok tube fitting, NPT, ISO, SAE/MS, VCR® metal gasket face seal, and VCO® O-ring face seal fittings VCR® metal gasket face seal, and VCO® O-ring face seal fittings
   Sizes 1/8, 1/4, 3/8, 1/2 in. and 6, 8, 10, 12 mm

View and purchase our most widely used products.

Discover more about how Swagelok products can work for you. Browse our catalogs or locate a sales and service center.

"Safe Product Selection: The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.

Do not mix or interchange product components with those of other manufacturers."