Plunger pumps are a type of positive displacement pump that works alternately with normal suction. The pump we are looking at is a double-acting plunger pump. This means that each movement of the plunger performs both suction and discharge. The MT 134 kit is part of the GUNT Practice Line, which is specifically designed for training in vocational schools and company training centres. The relationship between theory and practice is very close. Assembly and disassembly are simple and can be carried out with basic tools included in the package. In addition, the plunger seats are designed so that the entire process can be done manually.