Air Products

Control Line (Booster) Mini Valve

3100-5 Plug Unit Assembly
31-5 Rubber Repair Kit

An early version Control Line (Booster) Valve used primarily on dollies.

Used on older trailers and dollies. Newer vehicles should use the 110580 or 110570.
Complies with brake timing changes in FMVSS 121, Docket 85-07, Notice 4 from May 1991 to August 1993

Piping Diagrams
Mounting Hardware
Part Number Control Port (NPT) Reservoir Port (NPT) Delivery Ports (2) (NPT) SAE J1860 Tag Nominal Crack Pressure Notes
3100 1/4" 3/8"" 1/4" RB025 2.5 PS Includes Shown Bracket

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