Test results of diaphragm piston pump made of composite material based on polyurethane compound

Abstract

The paper presents the results of bench tests of diaphragm membrane-piston pumps made of composite materials based on two- component polyurethane. The tests were carried out with the help of a rupture machine, equipped with special equipment, which allows to imitate the complex stress-strain state in the diaphragm, which is characteristic of the operation of pumps in real conditions. According to the results of the tests, the diaphragm with the content of basalt is 1 and 2 ob. % showed the same ultimate strength.