A fan shape, a round shape, and a spray shape are generally the three types.
Second, the spray pump is mainly composed of a crankcase, a steel sleeve assembly, a pump head assembly and the like. A safety valve is installed on the discharge chamber side of the pump head and a relief valve is provided on the other side. A venting hole is arranged above the inlet chamber cover to discharge the air in the chamber; and an antifreeze and liquid discharging hole is arranged under the inlet chamber cover to drain the liquid in the liquid inlet chamber. The pump head assembly is the hydraulic end of the pump. Three sets of suction valves are installed in the lower part of the pump head, and three sets of liquid discharge valves are arranged in the upper part. The gland of the end of the three high-pressure chambers is provided with a venting hole, which is set for opening the pump or for exhausting the air of each chamber during operation. High-pressure steel sleeve assembly, the plunger seal is three rectangular seals.
The three safety valve is a function to safely release the liquid when the pump exceeds the set pressure. Its opening pressure is:
Pump setting pressure Mpa ≤12.5 110%～120%
Valve opening pressure Mpa >12.5～25 110%～115%
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