SVB Safety Valves

The SVB Safety Valves are used for over-pressure protection on unfired pressure vessels in saturated steam systems. Valves are 100% factory tested and made in the USA.

  • Stainless Steel springs
  • Teflon®-PFA seat resists corrosive boiler chemicals
  • Two control rings for maximum performance and adjustability
  • Tapped body drain allows piping of condensate away from valve to protect the internals from fouling

Catalog Spec Sheet (pdf)
I&M (pdf)


How SVB Safety Valves Work

In the event steam pressure increases to the set point, the safety valve will “pop open” discharging steam faster than it can be produced. This allows system pressure to return to safe levels at which point the valve will close.


  • Ratings are 90% of actual capacity.
  • For Set Pressures over 250 PSIG, Consult factory
  • For other sized, consult factory.