Sealco Commercial Vehicle Products

Pre FVMSS 121 Relay Emergency Valve

Relay emergency valve used on U.S. brake systems prior to implementation of FVMSS 121. This is a charging style valve for use with single (service only) brake chambers.

10-5	Repair Kit
1000-5A	Replacement Cartridge

Part Number

Supply Port (NPT)

Control Port (NPT)

Reservoir Port (NPT)

Delivery Ports (NPT)

SAE J1860 Tag

Nominal Crack Pressure

A1000S

1/4"

1/2"

1/4"

1.5