Compressed air control unit for Pipe Plugs, Pipe Test Plugs, Sanitation Packers

with safety valve for various pressure levels, pressure gauge and stopcock. How it works: when the pressure reaches 1.5 bar, for example, the safety valve triggers ("blows off") and thus protects the pipe plug from excessive inflation pressure! The pressure gauge indicates the pressure in the pipe plug (or pipe test plug or sanitation packer). The large stopcock enables controlled filling.