When the water pressure is too high, pump will protect themselves and normal work, water pipes will not burst. Diaphragm pump combines the advantages of self-priming pump and chemical pump. Using a variety of corrosion-resistant materials, self-priming, thermal protection, smooth operation, long-time continuous idling, long-time continuous load operation. Rubber bracket can absorb vibration from the pump when working.Installed in a dry, well-ventilated location; pumps can not work in water. Totally sealed, high stable pressure.Small in size, light in weight.Safe and stable.Easy to install., Manufacturer: TRDEWR