The first type is the bare pipe water wall. This is the simplest structure of the water wall. The advantage is that ordinary seamless steel pipes can be used, and it is more convenient to replace the water wall pipe. The disadvantage is that the temperature of the furnace wall is still high, and heavy refractory bricks are required. The steel frame of the corresponding boiler should be strengthened. , The air leakage of the furnace wall is relatively large. Old-fashioned high-pressure boilers and medium and small boilers are used more frequently.
The second tupe is the membrane water wall. The membrane water wall is welded by seamless steel tubes with fins. The Water Wall Tubes are connected by fins to make the water wall into a whole. This kind of water wall is called a membrane water wall. Its function is to strengthen the heat transfer of the water wall and greatly reduce the temperature of the furnace wall. The furnace wall does not need refractory bricks, but only requires thermal insulation materials. Compared with the conventional heavy furnace wall, the weight can be reduced by 60% ~ 70%, the furnace wall heat storage is reduced by 80%, the start and stop time is shortened, and the fuel consumption is reduced. The load of the furnace steel frame is greatly reduced, saving refractory materials and steel.
The third type is the pierced pipe water wall. The barbed pipe water wall pipe is made by welding many grab nails with a length of 20 to 26 mm and a diameter of 6 to 12 mm on the water wall pipe. It is mainly used to lay the gas belt. Generally, for boilers that burn fuel with low calorific value and low volatile content, in order to stabilize the fire, pierced pipe water walls are often used for laying the fire protection belt.
Wall Mounted Boiler,Water Wall Tubes,Wall Mounted Combi Boiler,Water Wall Tubes In Boiler Jinan Yuanda Power Equipment Co.,Ltd. , https://www.ydboilerpart.com
1. Grade: 10.9, 12.9
2. Material: 40Cr, 42CrMoÂ
3. Finishing: Black Oxide, Phosphated, Gavanized, Dacromet
4. Packing: Standard neutral export packing / Buyer required packingÂ
5. MOQ: Normally it's 3000pcs each modelÂ
6. Delivery Time: 4-5weeks for 1*20"FCLÂ
7. Payment Term: T/T ,LCÂ
About us:
Our company was established in 1990, combining R&D, foreign trade and professional service of fasteners as an organic whole. Following sincerity, striving to be remarkableis our management idea. We have established a good image in the fastener producing and marketing field, well received by consumers. Our company has strong production capacity and sells professional standard fasteners. Our products accord with the international quality system, such as ANSI and BS. Our company offers high quality professional fasteners for industrial fields, such as automobile, building, communication, electron, energy, electrical home appliances and furniture, etc. Throughout year's development, we can assure high quality of our products.
Â
OEMÂ Service
Product name
Wheel Bolts And Nuts
Materials Available1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), Q235 3. Brass:C36000 ( C26800), C37700 ( HPb59) 4. Iron: 1213,12L14,1215 5. Aluminum: Al6061, Al6063 6.OEM according to your request
Products Available
Bolts, Screws, Nuts, Rivets, Stud Bolts, CNC Parts, Flat Washer, Spring WasherÂ
Surface Finish
Annealing, Natural anodization, Polishing, Nickel plating, Chrome plating,
Yellow passivation, Zinc plating, Hot dip galvanized, PTFE, etc.
Processing Method
CNC machining, Turning, Milling, Drilling, Grinding, Broaching, Welding and Assembly
QC (inspection everywhere)
Technicians self-check in production
Size
Customized
Tolerance
±0.01mm
offset distance
±0.02mm
Package
As per customized specifications
Certificate
ISO9001:2008
Description
High-quality, Rich manufacturing experience
Packaging & Shipping
BYÂ SEAÂ &Â BYÂ AIRÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Port : SHANGHAI & NINGBO
BY SEA : ( North America,South America) around 40 working days, Eastern Europe  around 30-40 working days , Southeast Asia  around 6-10 working days, Africa  around 35-45 working days, (India, Pakistan ) around 40 working days,( South Korea, Japan)  around 40 working days.
BY AIR : Africa around 3-5 working days, Other places  around 1-3 working days
Carton size : The ordinary carton  (26.5*21.5*16.5CM) ,  or according to the demand of the customers.
Packing : Box, carton or plastic bags, then put on pallets, or according to the demand of the customers.
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Company Information
Company name
Wuxi Zhuocheng Mechanical Components Co., Ltd.
Website
www.zhuochengwj.com
Type of Company
Manufacturer
Certification
SGS, CE, ISO9001:2008
Manufacturing Capacity
500Â Ton/Month
Wheel Bolts And Nuts
1. Grade: 10.9, 12.9
2. Material: 40Cr, 42CrMoÂ
3. Finishing: Black Oxide, Phosphated, Gavanized, Dacromet
4. Packing: Standard neutral export packing / Buyer required packingÂ
5. MOQ: Normally it's 3000pcs each modelÂ
6. Delivery Time: 4-5weeks for 1*20"FCLÂ
7. Payment Term: T/T ,LCÂ
About us:
Our company was established in 1990, combining R&D, foreign trade and professional service of fasteners as an organic whole. Following sincerity, striving to be remarkableis our management idea. We have established a good image in the fastener producing and marketing field, well received by consumers. Our company has strong production capacity and sells professional standard fasteners. Our products accord with the international quality system, such as ANSI and BS. Our company offers high quality professional fasteners for industrial fields, such as automobile, building, communication, electron, energy, electrical home appliances and furniture, etc. Throughout year's development, we can assure high quality of our products.
Â
OEMÂ Service
Product name
Wheel Bolts And Nuts
Materials Available1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), Q235 3. Brass:C36000 ( C26800), C37700 ( HPb59) 4. Iron: 1213,12L14,1215 5. Aluminum: Al6061, Al6063 6.OEM according to your request
Products Available
Bolts, Screws, Nuts, Rivets, Stud Bolts, CNC Parts, Flat Washer, Spring WasherÂ
Surface Finish
Annealing, Natural anodization, Polishing, Nickel plating, Chrome plating,
Yellow passivation, Zinc plating, Hot dip galvanized, PTFE, etc.
Processing Method
CNC machining, Turning, Milling, Drilling, Grinding, Broaching, Welding and Assembly
QC (inspection everywhere)
Technicians self-check in production
Size
Customized
Tolerance
±0.01mm
offset distance
±0.02mm
Package
As per customized specifications
Certificate
ISO9001:2008
Description
High-quality, Rich manufacturing experience
Packaging & Shipping
BYÂ SEAÂ &Â BYÂ AIRÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Port : SHANGHAI & NINGBO
BY SEA : ( North America,South America) around 40 working days, Eastern Europe  around 30-40 working days , Southeast Asia  around 6-10 working days, Africa  around 35-45 working days, (India, Pakistan ) around 40 working days,( South Korea, Japan)  around 40 working days.
BY AIR : Africa around 3-5 working days, Other places  around 1-3 working days
Carton size : The ordinary carton  (26.5*21.5*16.5CM) ,  or according to the demand of the customers.
Packing : Box, carton or plastic bags, then put on pallets, or according to the demand of the customers.
Â
Company Information
Company name
Wuxi Zhuocheng Mechanical Components Co., Ltd.
Website
www.zhuochengwj.com
Type of Company
Manufacturer
Certification
SGS, CE, ISO9001:2008
Manufacturing Capacity
500Â Ton/Month
The boiler water wall is the main radiation heat surface, arranged inside the boiler chamber and proceeds the heat exchange directly with the high temperature flame. The convection tubes are the convection heat surface of the boiler, arranged between the boiler chamber outlet and the end heat surface and proceed the heat exchange directly with the high temperature fume. The water wall and convection tubes are the main heat surface of the boiler, the tubes diameter for both generally usedΦ 51-60mm boiler steel tubes, also as the request.
Wheel Bolts and Nuts
Finish: Passivation
Trademark: ZHUOCHENG
Specification: ANSI, ISO, DIN, BS, JIS, AS
Origin: Wuxi, China
Finish: Passivation
Trademark: ZHUOCHENG
Specification: ANSI, ISO, DIN, BS, JIS, AS
Origin: Wuxi, China
Wheel Bolts And Nuts