1. Versatile Material Compatibility 2. Flowing and spacious, with good performance When pumping mud and impurities, there is minimal wear on the pump 3. The head and flow can be infinitely adjusted through the opening of the air valve 4. The pump has no rotating parts and no shaft seal. The diaphragm completely separates the pumped medium from the moving parts and working medium of the pump, and the conveyed medium will not leak outward 5. No need for electricity, safe and reliable to use in flammable and explosive places