Abstract: A pump includes a cylinder having a suction pipe; and inlet section including a housing, a lower threaded section, an upper nut secured to an upper threaded section, and an inlet having a first connector connected to a valve, a second connector having a connection element connected to the valve, a hollow projection opposite to the connection element and provided through the housing, and an axial hole through the hollow projection; a joining section secured to the cylinder and including a hollow first threaded section and a hollow first internally threaded section secured to a second externally threaded section; a manual operation section including a piston rod extending downward from a spring biased handle into the cylinder; an outlet section; and a safety valve. The safety valve releases pressurized air when the pressurized air reaches a pressure of 0.5 kgf/cm2 at the safety valve.

Abstract: A pump includes a cylinder having a lower end formed with a suction pipe; an inlet section including a housing, a lower externally threaded section, an upper externally threaded section, an upper nut secured to the upper externally threaded section, and an inlet having a valve, a first connector having one end connected to the valve, and a second connector having a connection element connected to the valve, a hollow projection opposite to the connection element and provided through the housing, and an axial hole through the hollow projection; a joining section secured to the cylinder and including a hollow first externally threaded section, a hollow second externally threaded section, and a hollow first internally threaded section secured to the second externally threaded section; a manual operation section including a piston rod extending downward from a spring biased handle into the cylinder; and an outlet section.