Double diaphragm alarm metering pump

1., the application of advanced overload, limit position and oil replenishing three valve mechanism, that is, to ensure that the hydraulic oil in the liquid cavity is satisfied, and to avoid excessive oil and prevent hydraulic pressure, so as to balance the two sides of the diaphragm and improve the service life of diaphragm, and the life of diaphragm can be increased to more than 8000h.

2. when the special medium is transported, a double diaphragm diaphragm rupture alarm device can be used to prevent the separation of the diaphragm from the mixture of medium and hydraulic oil.