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Sep , 03 2019
Abrasion resistance comparison between ceramic and steel Corrosion resistance comparison between ceramic and steel Ceramic materials: Al2O3 : Aluminium oxide, ZrO2: Zirconium oxide, SSiC: Silicon carbide, Si3N4: Silicon nitride Ceramic Valves Advantages: 1. Excellent abrasion resistance many times higher than steel duo to extremely high hardness 2. Outstanding corrosion resistance against almost a...
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Sep , 03 2019
Ceramic valves includes ceramic ball valves, ceramic butterfly valves, ceramic double disc gate valves, ceramic knife gate valves have solved abrasion & corrosion problems for lots of projects in various applications in different industry as follows: Coal fired power plants: Ash, lime slurry and gypsum slurry; Process water with high chlorides and solids content in flue gas desulphurisation (F...
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Oct , 25 2019
Duo to excellent chemical stability and extreme hardness of ceramic, ceramic valves are widely used for abrasive and corrosive water, oil, gas and slurry with abrasive solid in coal fired power plants, mining & metallurgy, iron & steel, paper & pulp, fertilizer, polysilicon, cement, Alumina plant and petrochemical industry. There are many kinds of ceramic valves like ceramic ball valve...
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Feb , 21 2020
With 730% higher hardness than stainless steel, ceramic materials have excellent wear resistance against friction. So the ceramic materials are adopted to produce ceramic valves to solve abrasion and corrosion problems in applications with abrasive and corrosive slurry and solids. The production of ceramic valves includes ceramic parts forming, ceramic parts sintering, ceramic parts machining, ste...
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Feb , 24 2020
FEP and PFA are fluoroplastics which are corrosion resistant against various kinds of corrosive meidum. FEP and PFA are used as lining for ball valves, butterfly valves, plug valves, diaphragm valves and gate valves etc. Corrosion resistant FEP and PFA lined valves are used widely in Chemical, Power, Metallurgy and Petroleum etc. FEP and PFA lined valves need two sets of moulds to produce FEP and ...
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Feb , 26 2020
YFL anti-corrosive rubber lined valves adopt rubber lining to protect the trim parts include body, bonnet, disc and stem from corrosion by corrosive medium. There are various kind of rubber materials to suit different medium in different working temperature. The production of rubber lined valves mainly include metal steel parts casting and machining, rubber materials vulcanizing on the metal steel...
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Feb , 27 2020
Control valves are used widely in different industries to control the flow rate, pressure and temperature as request for various applications. Control valves are mainly composed by valve body, actuator and accessories. The production of control valves mainly include production of valve body and actuator, and some actuators and accessories are purchased from cooperated suppliers. The production of ...
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Feb , 28 2020
Pressure relief valve is also called safety valve, it is used as overpressure protection device to make sure pressure equipments or pressure pipeline work safely. The production of safety valve includes casting of body, precise machining of body and trim parts like nozzle, disc, guide and stem etc. To achieve short delivery time and meet demand of urgent need, standard trim parts like spring, nozz...
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Jul , 19 2020
The forged body are connected with the bonnet through bolted, welded or threaded. The forged valves are assembled well and finally the valves ends are protected by plastic cover after valve pressure test. Each forged valve is done with valve pressure test strictly according to international standards and customer's requirements to make sure every forged valves leave the factory with top class qual...
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Jul , 19 2020
There are various kinds of high pressure high temperature forged steel valves as below widely used in power stations: Valve types: Gate valve, bellows seal gate valve, straight type Globe valve, Y type globe valve, bellows seal globe valve, swing check valve, lift type check valve, ball type check valve, Y type check valve, Y type strainer and ball valve. Valve ends: Welded Flanged ends, Integral ...
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Aug , 18 2020
The main difference between normal valves and bellows seal valve is the stem seal. Bellows seal valves adopt bellows as stem seal to replace packing which is used in normal valves. The bellows are welded to connect the bonnet. And bellows seal valves can also use packing seal as secondary stem seal to achieve double seal. When there are very strict stem seal requirements in some special applicatio...
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Aug , 18 2020
There are bellows seal gate valves, bellows seal globe valves, bellows seal Y type globe valves produced according to ANSI/DIN standards with casted or forged body in various kinds of materials to suit different working conditions. The production of bellows seal valves mainly include casting/forging, machining, assembling, testing, painting and packing. The castings/forgings of bellows seal valves...
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