Name: Flexible Graphite Sheet
Description: Flexible graphite sheet is made with pure expanded graphite. Sungraf brand flexible graphite sheet has a high purity of 99% carbon content
Advantages: better chemical resistance, better thermal conductivity, and better sealability.
Usage:â? As gasket material, it is usually fabricated into Graphite Laminate, reinforced graphite sheet
â?¡widely used in fluid sealing applications: flange gasket, spiral wound gasket, heat exchanger gasket, etc.
â?¢It can also be used as solid lubricant in metal stamping and forming applications, or as heat liner in industry furnaces and other heating devices
Standard Size
TypeThick (mm)Width (mm)Length(mm)
In Sheets0.2-6.01000, 15001000, 1500
In Rolls0.2-1.51000, 150030m-100m
We are a China based plate heat exchanger manufacturer, and we specialize in plate type heat exchanger, all kinds of plates and gaskets producing. 500+ moulds are with us, and we can replace the most applied plates and gaskets for Alfa Laval Gea, APV, Tranter, Sondex, Funke, Thermowave etc. Thereâ??s no difference when comparing our products with genuine ones. And through the past 13 years, we have been selling them to all over the world, especially in European and American markets.
The GEA brand, plates and gaskets we can produce and replace is: NT50T NT50M NT50X NT100TNT100M NT100X NT150L NT150S NT250S NT250M NT250L NT350S NT350M
Our plate material 304, 316L, Titanium, Hastelloy C-276 254SMO 904L;
Our gasket and ring gasket material NBR, EPDM, VITON, HNBR, CR;
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Weâ??re a China based plate heat exchanger manufacturer, and we specialize in plate type heat exchanger, all kinds of plates and gaskets producing. 500+ moulds are with us, and we can replace the most applied plates and gaskets for Alfa Laval Gea, APV, Tranter, Sondex, Funke, Thermowave etc. Thereâ??s no difference when comparing our products with genuine ones. And through the past 13 years, we have been selling them to all over the world, especially in European and American markets.
The GEA brand, plates and gaskets we can produce and replace is:
Large mean logarithmic temperature difference
02 Large log-averaged temperature difference
Plate heat exchanger is mostly parallel or counter-current flow mode. Select the number of processes and channels, the initial selection of cold, hot fluid flow and the number of channels, and thus calculated flow rates. Cold, hot fluid in the plate heat exchanger flow parallel to the heat transfer surface, no bypass, thus making the end temperature difference is small, the logarithmic mean temperature difference is large .
The double wall plate heat exchanger plate is welded integrally with two thin plate pieces along the corner hole of each pair of plates. When the plate leaks, for example, the perforation caused by long time working will be easily detected from outside. Thereby it stops mixing between two materials.And at the same time, they plays very important roles towards warning internal leakage. Combined with the double seal of the gasket, the possibility of mixing two materials is avoided, and it is suitable for applications with high sanitary requirements or high safety and reliability of industrial production. Since the two sheets are welded to form a sheet, the heat transfer coefficient is inevitably lowered, but the highest safety is achieved in preventing materials mixing.
The semi welded plate heat exchanger is composed of a pair of plates, and each of the two plates is laser welded to form a pair of plates. It is sandwiched between the fixed pressing plate and the movable pressing plate in a superimposed manner
Product introduction
Semi welded plate heat exchanger
The semi welded plate heat exchanger is composed of a pair of plates, and each of the two plates is laser welded to form a pair of plates. It is sandwiched between the fixed pressing plate and the movable pressing plate in a superimposed manner. The mesh contacts are formed between adjacentplates and supported by each other, and the rigidity of the plates is remarkably enhanced. Our semi welded plate heat exchanger adopts advanced laser welding technology, which has the advantages of small welding deformation, small residual stress and high quality.Qingdao Ruipute has advanced welding technology, especially for the first time to achieve the welding technology of special materials such as titanium, we are at the domestic leading level in developing and manufacturing semi-welded titanium plate heat exchange equipment.
The cavity of the pair of plates forms a pass of a medium; the two pairs of plates are sealed by a sealing gasket which is resistant to corrosion, high temperature and high pressure, and constitutes another medium pass; the two mediums flow evenly in a countercurrent way in the adjacent channels to complete the sufficient heat exchange process. This structure ensures the stability of the welded plate pairs, providing easy maintenance of each pair of plates. It has the characteristics of high safety, high heat transfer efficiency, long service life and easy maintenance. It is suitable for cooling and chemical treatment. It is the ideal alternative equipment to shell and tube heat exchanger and all welded plate heat exchanger.Especially suitable for evaporation and condensation of ammonia coolants,as well as chemical treatment of corrosive liquids.
Maximum volume:5000m3 /h; Maximum design pressure:25bar
Maximum temperature:150 celsius degree; Minimum difference in temperature:0.5-1celsius degree
The working principle of the plate evaporator is to compress the secondary steam generated by the equipment through the configured compressor, then raise the pressure and temperature to a certain range, and finally transfer it to the relevant heating chamber of evaporator as heating steam. Finally, to perform the condensation heat release program, so that it can help the latent heat of the steam and the recycling can be effectively obtained.
Maximum heat transfer area: 500m2/set; Maximum design pressure:16bar
Maximum temperature:200 celsius degree; Nozzle diameter:DN50~DN500
The plate evaporator is ingenious in design, so the heat transfer efficiency is higher than that of the general evaporator. Generally, the plate evaporator area only needs about one-half of the tube evaporator then can achieve the same evaporation effect.
Plate evaporator
Compact overall structure
The whole structure is compact, floor space is small, and there is no need to invest too much manpower and material resources in the later use process. For some maintenance work, it only needs to be carried out in the original space range, and it's very simple whether it is disassembled or installed .
Plate evaporator
Diversification of components
The heat exchange area can be effectively adjusted according to the customer's needs: now the heat exchange area of different evaporators has different ranges, since the heat exchanger plates can be disassembled, so multiple components with multiple skills and more new functions can be provided through adjusting number of plates and changing relative flow path.
Plate evaporator
Small heat loss
Because this type of equipment is compact in structure and relatively light in weight, compared with tubular evaporators, it also reduces heat loss, and such equipment usually does not need to be insulated.
Plate evaporator
Less pressure loss
Under the same heat transfer coefficient condition, such evaporator equipment can control the pressure loss within a certain range by rotating a reasonable flow rate.Compared with tubular evaporator,it can reduce 2/3 pressure loss.
Plate evaporator
Stable and safe operation
Different sealing procedures are designed on the sealing device between the plates, and
Range of application
Metallurgy, food industry, paper industry, air conditioning, chemical and desalination industries
Product introduction
The plate condenser consists of plates that are welded together in pairs to form a so-called plate set. The concept of a plate set leads to two different types of channels: a weld channel for condensing steam and a gasket seal channel for cooling water. This type of plate is specially designed for optimum condensation. It has an asymmetrical arrangement with a large gap on the steam side and a small gap on the cooling water side. This makes it possible to maintain a very low pressure drop at the steam end while maintaining a certain speed and turbulence on the cooling water side. This maximizes heat transfer efficiency and minimizes fouling.
Plate condensers are specially developed for condensing steam under low pressure or vacuum conditions in evaporation and distillation systems. It can meet a variety of specific applications and capabilities requirements. The steam inlet fitting is large and the two condensate outlets are small. The cooling water fitting is a medium size and is located in the center of the plate.
Maximum heat transfer area: 500m2/set; Maximum design pressure:16bar
Maximum temperature:200 celsius degree; Nozzle diameter:DN50~DN700
Features
Plate condenser
Lower cost
Due to the high heat transfer efficiency, this means less heat exchange area and higher cost efficiency than conventional shell and tube type, especially when stainless steel or titanium is required. The compact design also saves space, thus reducing transportation and installation costs.
Plate condenser
Less fouling
Due to the high strength turbulence created by the specially designed corrugated sheets, there is less fouling on the cooling water side than the shell and tube condenser.
Plate condenser
Easy to clean
The cooling water side is easy to clean, whether in the way of mechanical or chemical.
Plate condenser
Easy to expand
Just add an extra "plate group" in the existing frame.
Plate condenser
Complete counterflow
A greater degree of subcooling of non-condensable gases can be achieved compared to shell and tube equipment. Therefore, the load of the vacuum pump will be reduced.
Range of application
Alumina, food industry, sugar industry, beverage industry, industrial wastewater, etc.
Principle
A plate and frame heat exchanger as known as gasketed plate heat exchanger is a high efficiency heat exchanger that assembled from metal sheets with corrugated pattern and different kind of gaskets. Plate heat exchangers are the ideal equipment for heat exchange between liquid-liquid and liquid-vapor.In the case of the same pressure loss, the heat transfer coefficient is 3-5 times higher than that of the tube heat exchanger, but the floor space is one-third of the tube heat exchanger, and the heat recovery rate can be as high as 90% or more.
Maximum volume: 5000m3 /h;Maximum design pressure: 25bar
Maximum temperature: 200 celsius degree; Minimum difference in temperature: 0.5-1 celsius degree
Plate heat exchanger
High heat transfer coefficient
The design of the plate corrugation is aimed at the high thermal conductivity. The special flow path are formed by the plate corrugation causing strong disturbance flow at a very low flow rate, which is called turbulent flow. And the disturbance flow can be self-cleaning to prevent fouling and thus the heat transfer efficiency is high.
Plate heat exchanger
Large logarithmic temperature difference
The temperature difference at the end is small, and the plate heat exchanger is mostly a cocurrent or countercurrent type of flow. In addition,there's no bypass flow.
Plate heat exchanger
Small footprint and easy maintenance
The plate heat exchanger has a compact structure, and the heat exchange area per unit volume is 2-5 times that of the shell-and-tube type, and the floor area of the plate heat exchanger is about 1/2-1/3 of the shell - tube heat exchanger when achieving same heat exchange capacity .
Product principle
The plate and shell heat exchanger adopts a circular corrugated heat exchanger plate that welded into a heat exchanger lathed bundle and combined with the structure of the pressure vessel shell. It also has a high heat transfer efficiency,compact structure and resistant to high temperature & pressure like shell tube heat exchanger. The plate and shell heat is durable under high temperature & pressure,large temperature difference and thermal shock, which is in a leading position in the industry.
Maximum volume:2500m3/h; Maximum design pressure:100bar
Maximum temperature:450 celsius degree; Minimum difference in temperature:0.5-1celsius degree
Features
Plate Shell Heat Exchanger
Safe and reliable
Unique and durable lathed bundle structure: It can resist pressure shock and thermal shock very well; round plate and circular ring welding, stress distributes evenly; no welding between lathed bundle and shell, and it can withstand various thermal expansion (deformation ).The tubular shell structure is a strong, durable and safe pressure vessel; it can be installed in any position without being affected from outside; the solid protective shell will not leak or burst, and there is no danger of leakage to the environment.
Our static casting foundry and foundry expert have more than 30 years of production experience, we is focusing on the castings for heat treatment furnace components, our heat resistant casting for heat treatment fixtures are casted by investment casting , namely lost wax casting, and sand casting methods. Main products includes casting stackable baskets for heat treatment furnaces, trays and grids for furnace, roller hearth trays , serpentines trays , furnace fixtures, jigs, for chamber furnace, pit furnaces. Our company work with german companies for long term cooperation, most of our castings are exported to germany, france, italy, spain, usa, south america, turkey, sa and get very good reputation from our valued customer, more products like fan wheel, skid riders, link belt casting, loading bars, cross beams, walking beams. (cast furnace fans, grids, and baskets, high alloy heat resistant casting base tray and basket)
Our static casting foundry and foundry expert have more than 30 years of production experience, we is focusing on the castings for heat treatment furnace components, our heat resistant casting for heat treatment fixtures are casted by investment casting , namely lost wax casting, and sand casting methods. Main products includes casting stackable baskets for heat treatment furnaces, trays and grids for furnace, roller hearth trays , serpentines trays , furnace fixtures, jigs, for chamber furnace, pit furnaces. Our company work with german companies for long term cooperation, most of our castings are exported to germany, france, italy, spain, usa, south america, turkey, sa and get very good reputation from our valued customer, more products like fan wheel, skid riders, link belt casting, loading bars, cross beams, walking beams. (cast furnace fans, grids, and baskets, high alloy heat resistant casting base tray and basket)
Materials
Two first legs and two first elbows:
ZGCr25Ni35Nb, ZGCr28Ni48W5, HK40, HT, HU, HH, 22H, More1, More2, KHR35H
Two last legs and last elbow: HPNb, ZG40Cr25Ni20Si2
support: GX40Cr25Ni20
flanges: SGC25
Process
Legs is centrifugal casted and machined subsequently.
Elbows will be made by static casting or precision casting.
Support be made by precision casting.
Flange will be forged, welded and machined according to relevant drawings.
Property
characteristic of heat resistance and excellent creep srtength
Welding consumables
Similar to or higher than base material
or as per the buyer's requirements
Inspection
The most generally used methods of testing given below:
Chemical analysis by Spectrometer
Mechanical tests in Normal and High temperature.
Ultrasonic, X-ray, Dye Penetrant Test.
Boroscope; Eddy current testing; Microscope ; Pressure tests.
Application
1. heat resistant alloy radiant tubes are mainly used in petrochemical, Metallurgical, steel and heat resistant industries.
2. corrosion resistant alloy radiant tubes are used in pulp and paper, chemical and other petrochemical industries.
3. super-alloys radiant tubes are used in high strength, carburization resistance industry.
Working temperature
depending on the materials (max 1)
sea worthy packaging or as per customers' requirements
We have hundreds of types of plate and gasket for your choice, with the most complete range, perfect quality and irresistible prices.
Used for maintenance and production
Plate material: SS304, 316L, Titanium, Nickel, 254Mo, Hastelloy
Plate thickness: 0.5mm, 0.6mm
Gasket material: NBR, EPDM, FPM, Silicone rubber
Food-grade material and other materials suitable for special working condition, like elevated or low temperature conditions, are also available.
Material Applicable Media
SS 304 pure water, river water, edible oil, mineral oil
SS 316L pure water, river water, edible oil, mineral oil
Titanium sea water, salt water, brine
Nickel high temperature or high concentration caustic soda
Mo dilute sulphuric acid, inorganic aqueous solution
Hastelloy concentrated sulphuric acid, hydrochloric acid, phosphoric acid
Material Temp. Applicable Media
NBR -15~+110 pure water, sea water, salt water, mineral oil
HNBR -15~+140 high temperature water or mineral oil
EPDM -25~+170 hot water, water vapour, acid, alkali
F.viton G -5~+180 acid, alkali fluid
Silicone Rubber -65~+250 low temperature and dry heat resistant
Asbestos -5~+250 food, oil, fat, alcohol
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