diaphragm pump

Summarize Diaphragm pump belongs to positive displacement pump, using compressed atmosphere or electromotor as motivity. The performance parameters approximate to WLDEPUMPS offederal Germany and MARIOWPUMPS of American...... Diaphram pump has so many advantages of self-priming pump, shield pump, trash pump, and immersion pump that it is widely used in many industries. For example, It is used to transport various liquid mediums (eg. chemical product, dry starch, food additive, pastern, dope, leechdom, serum,scoria liquid waste) with the characteristics of grain -containing, high mucilaginous, easy volatilization, easy flammable and explosive, precious, poisonous and causticity in chemical industry, pharmaceutical industry, petrochemical industry, galvanization industry, chinaware industry, medical treatment and electronics and other need to self-priming situations. The pump can draws completely out the transported liquid medium. Besides, it can also used as forepressure device of solid-liquid separation equipment. Diaphragm pump has developed two series, one is QBY airoperated pump and the other is DBY electric pump. There are eight standard diameter DN10-100(3/8-4) and three material components including aluminium alloy, castiron and stainless steel. According the properties of liquid meduim, septa select different materials, such as butadiene acrylonitrile rubber, neoprene,fluororubber,polytetrafluoroethylene, in order to satisfy different requirements Performance Features 1. No shaft seal, no leak, so it will not cause environment pollution and danger to people when transport medium with characteristics of grain-containing , high mucilaginous(max viscosity can up to 10 thousand centipoises), easy volatilization,causticity. 2. No rolling part and good pass capability, allowing to pass grains of maximum is meter up to 10mm. As no liquid shear flow, there are small abrasion for the pump itself and small harm to medium. So it can be used to transport sludge and living things like little fish. 3. No need to insert water. Self-priming is very strong that the max suction lift of 7m. Long time dry breath is harmless for the pump. If beyond the load, pump will stop automatically;when recover to load in range, strart again automatically.It has self-protection function.(electric pump has no this function) 4. Compared with electic pump(max total head 30m), the max total head of air operated pump could reach to 50m and discharge pressure could reach to 0.6mpa. Head and flow rate could be adjusted by the open extent of value,controlling the air pressure in range of 1-7kgf/cm2. However, electric pump has no such function and inlet must be controlled by regulative value. 5. Air operated pump can works normally when immerse in the medium. No current get through, so it is safer than electric pump. 6. Air operated pump doesn't need electric power, so it is more suitable to transport medium in easy flammable and explosive situation....... Signification of model Model Q BY 10 Q—Pneumatic power symbol BY—Diaphragm pump 10—inlet or outlet diameter(mm) Model D BY 10 D—Electric power symbol BY—Diaphragm pump 10—inlet or outlet diameter(mm)