We founded in 1988, with 32 years'experience in research development and manufacture of industrial boiler. Our boiler are saled for more than 100 countries and regions like Egypt, Ethiopia, Congo, Mauritius, Tanzania,South Africa, Mexico, Ireland, Indonesia etc.
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Product Thermal Capacity: 1 - 20 t/h
Working Pressure: 0.7 - 2 Mpa
Product Thermal Capacity: 20 - 110 t/h
Working Pressure: 1.25 - 5.3 Mpa
Product Thermal Capacity: 2 – 20t/h
Working Pressure: 1 - 2.5 MPA
Product Thermal Capacity: 4 - 35 t/h
Working Pressure: 1.0 - 2.5 MPA
Passivation of Stainless steel Vessels for boilers is a recommended practice. This will extend the life of the vessel by protecting it from corrosion. SS passivating chemicals are domestically available, and these are used by circulating within the SS pipelines and boiler…
The American Society of Mechanical Engineers maintain guidelines for the chemical cleaning and passivation of the internal metal surfaces of new boilers, chillers, and pipe work. In fact, if your newly installed piping and equipment is not properly cleaned and passivated…
In boilers operating below 1,000 psig, sodium sulfite and a concentrated liquid solution of catalyzed sodium bisulfite are the most commonly used materials for chemical deaeration due to low cost and ease of handling and testing.
Click to view7:46Aug 11, 2018· Commisioning chemical cleaning new boiler to removed the rust and making passivation by magnetic iron . DAGUSMAN CALL : Loading
How Does The Passivation Process Work?Many passivation specifications (ASTM A967, AMS2700, ASTM A380) exist to instruct on the proper process to passivate stainless steel, titanium andHow to Passivate Stainless Steel Parts? What Passivation Equipment Is needed?Putting together everything listed above requires a process that will properly clean and acid bath passivate stainless steel. Common passivation prTypes of Passivation Equipment and Passivation LinesLooking for what equipment and tanks are needed for the passivation process? Be sure to check out passivation process checklist or contact us to taPassivation SpecificationsMany high precision and critical part manufacturers which as aerospace and medical device manufacturers to have additional guidelines, specificatio If carbon steel could not be passivated then there would be no boilers made of carbon steel. Boiler steel passivation occurs by the Schikorr reaction at about 300 °C or 30 bar pressure. A protective "passivating" magnetite layer, a few microns thick forms by a reaction between clean, pickled steel and water.
Hydrochloricacid solution with inhibitors and complexorsare the most widely used chemical cleaning solvent to remove internal deposits of a boiler. HydrochloricAcid solvent is not compatible with stainless steel. A separate copper removal treatment process is required prior to using the hydrochloric acid solvent.
Chemical Clean and Passivation. The initial cleaning of a new boiler or pipe-work is critical to its operational success. Added costs grow rapidly with no or poorly applied chemical cleanings. Chemical Cleaning removes inorganic residue such as rust, silica and millscale, utilizing chemical compounds which are determined by the needs of your specific project.
Use of ammoniated citric acid for the chemical cleaning of high pressure boilers: Pre-commissional passivation. Before a boiler is put into service, it is customary to follow a "pre-commissional" chemical cleaning procedure. A newly constructed boiler will be contaminated by particulate debris, oils and greases, and rust.
The boiler is lighted up and pressured is raised to 40 Kg per Cm2 The sample is to be tested for Hydrazine concentration and should not be less than 25 ppm After 24 hours fire should be killed and boxed up Open super heater vent at 90°C and boiler is drained, the second stage passivation marks completion of chemical cleaning 8 Passivation
Chiller Treatment Chemical. Nalco 8338. TRAC 109. Boiler Treatment Chemicals. Nalco 780. Passivation Chemicals. Nalco 71D5 plus. RO & Membrane Treatments. PermaClean PC 77. PremaTreat PC 191 T. PremaClean PC 33. Cooling Tower Treatment. Trasar 3DT226. Trasar 3DT288.
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