Tectran TV12352 Emergency Control Valve

The Tectran TV12352 Emergency Control Valve is a single‑valve trailer service/emergency brake control device that combines service and emergency braking functions for heavy‑duty trailer air brake systems. Designed for direct OEM replacement in commercial trailers, converter dollies, semi‑trailers, and other heavy‑duty equipment, it regulates compressed air to brake chambers during normal braking and automatically applies the emergency brakes if trailer air supply is lost, described as an old‑style service/emergency valve. Manufacturer is Tectran Manufacturing Inc.; MPN TV12352; interchange KN12352; stock code 14514; system compatibility: heavy‑duty pneumatic trailer brake systems. It is used for repair, retrofit, replacement, and restoration of safe and reliable pneumatic brake operation in trailers and related equipment. Common replacements include Tectran TV28600 Full Function Trailer Valve, TV28601 Full Function Trailer Valve, and Haldex KN28600 Full Function Trailer Valve.