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Purchasing diaphragm pump guidelines, novice must-read

by:J&T     2021-01-02
2019 - 11 - 22

purchasing diaphragm water pump need to pay attention to? Working condition of first want you to know, the medium diaphragm pump is applicable for materials with you. Diaphragm pump have higher request for material medium viscosity, dynamic viscosity of general material cannot exceed 10000 centipoise ( CP) ; To determine whether the diaphragm pump flow satisfies the requirement of equipment used in the flow. Confirmation of the diaphragm pump suction whether meet the requirements; Confirm if the diaphragm water pump installation can be the scene of the equipment installation; Different nature of the media need to use different pump body material of diaphragm water pump; In choosing a good under the condition of the pump body material must also want to make sure the diaphragm material application and medium can use; Generally there are four categories of material on the market of diaphragm pump: a, non-corrosive steel casting diaphragm pump; Second, in view of the partial acid medium of aluminum alloy diaphragm pump; Third, in view of the weak acid and ph higher austenite ( 304304 l、316316 l) Stainless steel diaphragm pump; Four, in view of the strong acid, strong alkali type engineering plastic diaphragm pump, the following such as pumping aqua regia in extreme conditions, such as material, plastic material should be adopted in the strongest resistance to corrosion of polyvinylidene fluoride (PVC ( PVDF) The material. In addition to the above four consider good field power supply facilities, such as field air pipe gas pressure whether satisfy the requirement of the diaphragm pump gas source; If the scene without air facilities, whether can use electric diaphragm pump structure.


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