04Sep/17

Magnetic drive pump new material

Magnetic material selection of the basic understanding and unified, ndfeb material working temperature below 150 ℃, smco material working temperature below 250 ℃, for the micro pump can choose barium ferrite.Pump body metal, nonmetal material cent two kinds big.Stainless steel, metal, does not mean to all liquids are not rust, it is mainly used for compatible with process fluid and precious liquids, ultra pure liquid.Nonmetal is specially developed for corrosive applications.It is divided into two kinds of circumstances.One is the pure plastic pump, with pure polypropylene or vinyl fluoride thermoplastic molding.Such as the UK vanton CGM pump flow rate of 136 m3 / h, lift 84 m temperature (135 ℃), motor 32 kw power.Secondly, liner pump, is now popular a method of corrosion resistant pump lined with plastic.General pump body available malleable cast iron manufacturing, fep, pp, pfa, PVDF, etfe seamless lining.Called magnetix resulted the new series of mta without lining seal pump and other pump is the key advantage of application of its advanced pfa fluoropolymer lining, pfa with its unique widely the ability of resistance to chemical corrosion, etfe, PVDF is famous or other non-metallic materials.Adopts the patent technology, pressure casting membrane process, join the pfa lining thickness and uniform, compete with rotational molded.Used in high purity and high temperature fluid is more ideal.Iso pump ptfe lining the minimum thickness of 3 mm, with mortise pressure into the pump casing, pump casing made of borosilicate glass.Isolation cover is the key of seal parts, it will lead to the bursting of the fluid leak catastrophic harm.Single layer metal sealing cover a wide range of applications, the despite eddy current will generate heat energy loss, if using high strength, high resistance materials can limit the damage, such as: hartz alloy c – 4 (2.4610).Invented by taiani metal laminated isolation cover five countries patent, has been used in many design, its efficiency can reach 99%, transmission power 150 horsepower.Single layer ceramic zro2 (zro2) isolation cover, resistance to caustic solution, acid corrosion, high hardness and good sliding properties, and high mechanical strength and elasticity (e = 2 x 105 n/was), have been used to working pressure of 250 bar.But the ceramic cover thickness is bigger, can’t the plastic processing.In early 1999, the U.S. patent imo pump, the new isolation cover made of carbon fiber and epoxy resin, thickness of less than 2.8 mm, with stainless steel flange.31 bar is suitable for operatingRead More…

04Sep/17

Expand application areas and enhance technical performance

Expand application areas and enhance technical performance 1:magnetic transmission is the safest the most effective solution to seal field Permanent magnet drive the magnetic couplings for mechanical seal, the hazardous, toxic, pollution, dangerous, pure, valuable products and the production process is a security solution and its application range is very wide.Petroleum chemical industry, medicine, film, electroplating, nuclear power industries most of the liquid is corrosive, inflammable, explosive, toxic, precious, leak can lead to a working liquid waste and environmental pollution;Vacuum, the invasion of the external gas in the semiconductor industry: pure health diet, medicine to ensure that the media.The permanent magnet drive technology found place in these areas.British Howard machinery development co., LTD. (HMD) from 1946 has been working on the seal of pump manufacturing, 37 countries around the world has been selling nearly 70000 units, annual sales of 28 million pounds.America has hundreds of a pharmaceutical factory is equipped with mechanical seal of centrifugal pump, processing all kinds of acids, these pumps due to design problems often dry running, can only use 2 ~ 3 months to break, switch to the ansimag k1516 series of magnetic drive pumps, in operation since 1993 (operation of 4.8 hours a day, 365 days a year) to 1998 is still in operation.The Midwest container plate factory, synthesis of caustic soda is a big problem of rotary vane pump seal, the engineer said the pump is “the dark days of maintenance” installed ansimag etfe lining without company seal, magnetic pump running 11 months without downtime.America a large chemical plant is facing serious difficulties of methanol.By methanol flammable, 60 ℃ near boiling, flow only 7 m3 / h, differential pressure as high as 250 m.Solve the problem by dickow magnetic multistage transmission side suction pump, its flow is 15 m3 / h, differential pressure of 400 m, methanol ensures zero leakage, ensure the safety of operators and factory and resolves the problem of transport methanol containing bubbles. 2:on the technical performance to the tiny magnetic pump, large-scale development In order to meet market needs both at home and abroad, complete sets of equipment to the large-scale development, petroleum and chemical company in China must have a batch of annual output of thousand tons refinery, megaton ethylene plant.Machinery and equipment to meet the heavy load, long cycle, low energy consumption, and meet the environmental requirements.Found in the imitation of foreign products in China, the manufacturing materialRead More…

04Sep/17

The history of magnetic pump

1940 britons Charles and Geoffrey hwward solved the leakage of dangerous chemical pump medium for the first time, the solution is to use magnetic drive pump.In more than 30 years after the permanent magnet drive technology because of magnetic material progress is very slow.High performance ndfeb permanent magnet (ndfeb) in 1983, for the rapid development of the magnetic drive pump provides the key components of the material.Permanent magnetic transmission technology in recent years has been from the pump to expand other sealing machinery, technical focus on improve the reliability of equipment, resistance to corrosion medium of the new material research, manufacturing and assembly of the fluid technology and precision.Represents the magnetic pump manufacturing technology level of a country, industrial developed countries magnetic pump efficiency in recent years, the life, the manufacture cycle, cost, reliability, etc. Have the breakthrough. Permanent magnet drive technology that transmits power through its outer magnetic axis parts passed to work on the shaft of magnetic components, both inside and outside the magnetic components separated by isolation cover, thereby working shaft need not out of the space to be closed, cancelled the dynamic seal, no seal, zero leakage.Permanent magnetic transmission technology is mainly used in chemical industry, petroleum chemical industry, medicine and food industry in pumps and compressors, mixer and valves, etc.At present, the traditional mechanical seal is widely used in fluid machinery abroad which has been gradually replaced by the permanent magnet drive.

04Sep/17

How To Use Magnetic Drive Pump?

How To Use Magnetic Drive Pump: (1) after the installation, turn the coupling with the hand to check whether smooth. (2) to avoid impurities into the pump, the pump inlet filter. (3) can’t idle running. (4) high lift pump in the outlet pipe should install the check valve on the road. (5) pump open step: open pump before open the inlet valve, will be filled with liquid pump;Close the outlet valve;Inching electric lift machine, check the pump steering is correct; Pump to start working, the outlet valve should not open quickly, after waiting for the normal operation of pump, then open the outlet valve. Pump stop: close the outlet valve;Shut off the power;Close the inlet valve.