MADE IN U.S.A SINCE 1939

Relay Emergency Valves – Pre FMVSS 121

  • Used in air brake systems prior to the implementation of the FMVSS 121 rule & the mandate for mechanically held brakes resulting in spring brake chambers.
  • Designed to be used with service brake chambers only.
  • See Sealco Charging Relay Emergency valves for versions of this valve used since 1975.
  • Dimensions: Height 5.31” – Width 7.19” – Depth 7.000”     Approximate Weight: 5.60 lbs.
  • Mounting Hardware – See Air Valves & Related Products / Mounting Hardware
  • Air Piping Diagrams – See Technical / Air Piping Diagrams, multiple diagrams are applicable.
  • Cartridge 1000-5A
  • Repair Kit 10-5