Specifications:

• Part OEM: Sealco A1000S
• Part: Sealco Style Emergency Relay Valve
• Supply Port: (1) 1/2” P.T.
• Delivery Ports: (4) 1/4” P.T.
• Control Ports: (2) 1/4” P.T.
• Emergency Supply Port: (1) 1/4” P.T.
• Opening Pressure: 1.5 PSI
• Application Info: Used only on brake systems prior to the implementation FMVSS 121
• Notes: Helps the brake system build up enough pressure to operate, and make sure that it stays at that pressure to ensure braking power

CrossReference:

• Automann: 170.A1000
• Bendix: 229859, 229860
• Haldex: A1000S
• Mack: 7546-A1000S
• Meritor: RSLA1000S
• PAI: EM36180
• Sealco: A1000S