It has been awarded 3A certificate for several times and Quality Management System Certificate for compliance with the standard ISO9002-1994 qualification in August, 1998 and ISO9001-2000 qualification in September, 2002. It gained production license of seamless steel tube for low and medium pressure boiler in 1995 and high pressure boiler in 1999.
Jun 15, 2017 · ASTM A210/ASME SA210 Low and medium pressure boiler tubes . Boiler tubes are used in heat exchange appliances in which the energy is transferred from one medium to the other. The pipes are manufactured from carbon and low-alloy steel grades which are resistant to loads under high pressure and temperatures.
Sulfite residual limits are a function of boiler operating pressure. For most low- and medium-pressure systems, sulfite residuals should be in excess of 20 ppm. Hydrazine control is usually based on a feedwater excess of 0.05-0.1 ppm. For different organic scavengers, residuals and tests vary. MONITORING AND TESTING
For Manufacturing heating-pipelines, containers, steaming pipelines of low or medium pressure boilers (P≤5.88Mpa, T≤450℃) Main Steel Tube Grades 10#20# Other grades can also be provided after consulting with customers. Mechanical Properties
A low-pressure fire-tube boiler can usually tolerate high feed-water hardness with proper treatment while virtually all impurities must be removed from water used in some modern, high-pressure boilers. Only relatively wide ranges can be given as to maximum levels of alkalis, salt, silica, phosphates etc, in relation to working pressure.
Alternative water-tube boiler layouts. The following layouts work on the same principles as other water-tube boilers, and are available with capacities from 5 000 kg/h to 180 000 kg/h. Longitudinal drum boiler. The longitudinal drum boiler was the original type of water-tube boiler that operated on the thermo-siphon principle (see Figure 3.3.5).
Thick wall tubes with WT/OD reaches 36% and thin wall tubes with WT/OD less than 4% can be produced. Mature piercing process, unique cold finishing technology, advanced lubrication process and reliable heat treatment technology ensure the stable products quality.
The differences between high pressure boiler tubes and zhi low and medium pressure boiler tubes are as follows: A.the execution standards is different B.Different use environments High pressure boiler tubes: the working pressure is generally above 9.8Mpa, and the working temperature is between 450℃ and 650℃ Low and medium pressure boiler
EST Groups Pop-A-Plug Tube Plugs are a permanent mechanical tube plugging solution for leaking heat exchanger, condenser, and boiler tubes. Mechanical tube plugs feature an internally and externally serrated ring designed to maintain a helium leak-tight seal even under extreme thermal and pressure
34,021 steel high pressure tubes products are offered for sale by suppliers on Alibaba.com, of which steel pipes accounts for 5%, plastic tubes accounts for 1%, and titanium pipes accounts for 1%. A wide variety of steel high pressure tubes options are available to you, such as plastic, pvc.
2. BOILERS Bureau of Energy Efficiency 27 Syllabus Boilers: Types, Combustion in boilers, Performances evaluation, Analysis of losses, Feed water treatment, Blow down, Energy conservation opportunities. 2.1 Introduction A boiler is an enclosed vessel that provides a means for combustion heat to be transferred into water until it becomes heated water or steam.
In the case of low to medium pressure steam boilers, many of the corrosion and tube failure are deposit related. It is a common belief among boiler operators that a thin layer of mineral scale actually helps protect the boiler tubes from corrosion. Though the mineral coating on the tube may look smooth and protective, the steel beneath the
Item: Low and medium pressure boiler tube: Standard: ASTM, DIN, ISO, EN, JIS, GB, etc. Material: A53, A283-D, A135-A, A53-A, A106-A, A179-C, A214-C, A192, A226, A315
How Boiler Pipe is Manufactured, Material Specification
About product and suppliers: Get access to robust, stainless low and medium pressure boiler pipe at Alibaba.com to cater to your constructional and industrial requirements with precision. These sturdy, stainless, and galvanized low and medium pressure boiler pipe are ideal for all types of heavy-duty purposes and come with enhanced sustainability and durability.
steel tube manufacturer/supplier, China steel tube manufacturer & factory list, find qualified Chinese steel tube manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.
Mar 29, 2017 · Boiler Types According to tubing methods Ther e are two main types of boiler Fire tube boilers and water tube boilers. Fire tube boilers are those boilers in which fire or flue gases are inside of the tubes and water is on the shell side. Fire Tube Boilers are low capacity low-pressure boilers usually used for heating, processor to produce hot water.