Different graphite materials are available for graphite tube pipe for different applications. Extruded, Vibrated, Reused, Impregnated and Oxidation resistant graphite tubes are available.

　　Graphite tubes can be customerized and graphite materials can be selected as per your requirements .

　　Our company supplies all kinds of graphite tube pipe for dryer, compressors, pumps, valves, chemicals, instruments, meters, etc.. We provide customized products depending on your

　　sample or drawing, please contact us to learn more about our products.

　　The graphite tube pipe are applied in many fields, such as furnaces because of graphite's low heat sensitivity;the production of fluxing tubes used in the metal manufacturing industry;Other industries using graphite tubes include chemical and scientific industry; Various types and diameters heating graphite tubes are used in heating vacuum furnace thermal field. Using graphite materials is in order to get high temperature.

　　We can provide all kinds of the graphite tube pipe such as: High purity graphite pipe tube;15% graphite filled PTFE tube pipe;Fine grain long size custom graphite tube pipe for foundry;corrosion resisting Heat exchanger resin graphite tube graphite pipe;special treatment graphite heating tube high purity graphite pipe;sqaure graphite pipe;continous casting carbon graphite Pipe;Anti-Oxidation graphite pipe for mechanical lubricating;Customized high strength carbon graphite pipes for analysis.

　　For large size graphite pipe, it can be used as a liquid pipelines in metal industry. For small size and good material graphite tube, it can be used as an analysis intrument.

　　Graphite pipe and garphite tube are made from high quality graphite material, used for many area , such as chemical metallurgy, automotive, semiconductor and electronic industry and so on.all our the parts are manufactured into high quality graphite or fine structure graphite.

　　The advantage of our service:Exact Machining;Professional engineering support;Patient and smiling business service;Large store of graphite material ensures quick delivery time. We promise to provide the good quality and best service, welcome everyone to purchase from us.

　　The graphite piping is a combination of non transparent graphite tube and pipe fittings, it can be divided into two kinds of graphite profiling tube and impregnation tube.

　　Graphite profiling tube is made of the graphite powder and a certain proportion of the resin after mixing kneading and extruding, also known as the graphite plastic pipe. Graphite tube is used as heat exchanger tube.

　　The impregnated graphite tube is divided into two categories, one is a thermoset resin graphite profiling tube , it’s got from roasting by high temperature (700 DEG C) and then impregnated with resin or we roast ,graphitiz and impregnate the extrusion pipe which as pitch the binder material. The former is called the carbonization tube, and the latter is called the graphite tube. This kind of graphite tube is also used for heat exchange tube; the other is the graphite rod which is processed into the tube and then impregnated with the resin, or the casting tube after the baking and impregnated with the resin. The casting pipe is cast by the mold after mixing the graphite powder and thermoset resin . The inner diameter of the graphite product is larger, it is mainly used for conveying pipe.

　　The graphite piping has three links, four links, elbow, inner and outer joints, pipe end cover, pipe flange, plug, pipe compensator, etc.. In addition to the single or small batch production by the preparation method of bulk graphite impregnated after processing, the main graphite pipe is made by compression molding manufacturing method, namely, the natural or artificial graphite powder with a certain amount of thermoset resin at room temperature or heating atmospheric pressure or under pressure after molding, with a little amount of mechanical processing and heat treatment were prepared by dipping.

　　The connection method of graphite piping has bonding, thread connection, flange or the open loop plus the way of the flange, etc.. Encrypted sealing element for plane contact surface. The long pipe, it need add pipeline compensator to eliminate the effects of thermal expansion and contraction, and it’s often fixed with support and rings. Sometimes the outer side of the graphite tube is reinforced with a metal shell.

　　The Graphite piping is used for conveying corrosive medium without metal ion pollution, and it also has good thermal conductivity, it can be used as air cooling or water cooling purposes. In chlor alkali industry, the graphite piping is HCl synthesis and the ideal gas pipeline equipment between the cooling absorption unit.

　　Resin graphite tube heat exchanger is now more and more used in chemical and steel industries,It’s unique properties make it unique and irreplaceable. The failure forms of the heat exchanger has two kinds: graphite tube breaking, graphite tube blasting.

　　Graphite is a brittle material, when the flange is be connected, it can not be unrestricted use of torque, so the corresponding different graphite materials to use the correct torque, so that the device can be guaranteed. Often a lot of times when the torque is not correct will cause the leakage of equipment and the destruction of graphite materials.

　　The key components of graphite heat exchanger are composed of corrosion resistant graphite.

　　After asphalt mixing, extrusion (or vibration forming), the graphite grains are formed at high temperature, and graphite grains become graphite materials. The present industrial level (i.e., the graphite material in the liquid phase under the condition of not high pressure and temperature). In order to allow the graphite pieces to work under the conditions of the technical requirements, impregnation is the only guarantee of the process of the non permeability.

　　The graphite material is pressed into the space by the dipping process or the organic or inorganic liquid material (dipping agent). To form a impregnated graphite in the void.

　　There are many kinds of impregnant, but practice has proved that the thermosetting phenolic resin has the best overall performance,and it’s main graphite impregnating agent. The performance of impregnated graphite in the relevant standards, also for phenolic impregnated graphite.

　　The influence of impregnation parameters on the quality of impregnation was very important ,with the phenolic resin as an example,viscosity and moisture content of resin, impregnation time of process and control of temperature and pressure.

　　Tubular graphite heat exchangers have various tube plate material, the graphite tube plate, stainless tube plate and titanium tube plate and carbon steel tube plate (needing anti-corrosion treatment) ,these several tube plate material have the advantages and disadvantages in the application of the soda ash, let’s explore it in the following several aspects .

　　The Comparison of corrosion resistance.

　　Corrosion in soda production is still quite strong, especially in the ammonium chloride section containing NH4 +, Cl -, CO32 -, Na + corrosive mediumthe of united alkali production , the corrosion resistance requirements for equipment is more higher.

　　Graphite is widely used in chemical production because of its excellent corrosion resistance, especially the corrosion resistance for CL-.

　　Stainless steel also is corrosion resistant material, but it contains a certain amount of CL- in the united alkali liquor ,it is corrosive for the stainless steel .

　　The precision requirements of the cooperation between the sealing rubber ring and tube plate is high,so the small corrosion of the tube plate will cause seal failure.

　　Titanium tube plate has good corrosion resistance, and it is widely used in soda.

　　The comparison of different materials of tube plate and graphite tube.

　　Graphite heat transfer tube and graphite tube plate is the same as the graphite material, the chemical composition is basically the same, the expansion coefficient is exactly the same. It don’t make the rubber gasket fatigue because of expansion force extruding rubber seal ring and to cause the seal failure phenomenon, it should be said it’s quite safe.Stainless steel expansion coefficient is 10 times higher than that of graphite, in under the action of the swelling stress will make the sealing rubber ring to produce fatigue and then affect the sealing effect.

　　The expansion coefficient of carbon steel is 4-5 times that of graphite, as well as that the expansion force will cause damage to the rubber ring, resulting in seal failure.

　　Need to explain is that the damage of expansion force has close relationship with temperature, in the production of soda ash, especially associated alkali ammonium chloride section, the lower the temperature, the less the rubber gasket damage caused by the expansion force.

　　The comparison of equipment maintenance and cleaning.

　　The daily maintenance and cleaning of equipment is also very simple, it can be cleaned by circulating water and hydrochloric acid for the fouling in the inner of tube,but it is prohibited that cleaning the equipment by mechanical method and high-pressure water gun .

　　It need the same procedure and time when we change the tubes of the stainless steel tube plate and graphite tube heat exchangers in the actual production , both of them require to remove the head, and then the change the graphite tubes. For the daily maintenance and cleaning of the equipment, it can be cleaned by circulating water when the scaling is light, but when the fouling is heavy, it can not be cleaned with hydrochloric acid (stainless steel is not resistant to hydrochloric acid). While the graphite tube can not be cleaned by the mechanical method and high-pressure water gun.

　　To be explained, due to the thickness of carbon steel pipe plate, stainless steel tube plate and titanium tube plate si more small than the graphite tube plate, the time of changing tube is faster than the graphite tube plate, but the total changing tube time required for is almost the same.

　　The comparison of pressure and temperature resistance.

　　The temperature resistance of the equipments with several different material tubes and plates is consistent because all of them use the graphite tube as a heat transfer tube based on the characteristics of the graphite tube that temperature resistance at -20 ℃ -180 ℃. In terms of pressure, the bearing pressure of stainless steel and carbon steel is big than the graphite . But now the graphite tube plate system equipment can withstand the pressure of 1.2MPA.

　　The comparison of equipment cost.

　　In terms of the overall cost of the equipment, titanium tube plate equipment is the most expensive. Stainless steel tube board equipment (in the soda is mainly due to 316L) the price is higher than the graphite tube equipment. The most economical equipment is the combination of carbon steel tube plate and graphite tube.