Structure	Steel pipe-- insulation layer--steel pipe bend
Pre-insulated pipe standard	1. CJ/T200-2004 2. CJ/T246-2007 3. CJ/T104-2014
Steel pipe standard and material	1. GB 20#, Q235B 2. ASTM A53 GrB 3. API Spec 5L 16Mn, X42-X80
Steel pipe process	1. Seamless, 2. Spiral steel pipe( SAW) 3. Straight steel pipe(ERW)
Insulation layer of external sliding type	Fiberglass wool or rock wool
Insulation layer of internal sliding type	1. Calcium silicate insulation material 2. Polyurethane insulation material
Application	1. Steam 2. Hot oil 3. Hot material
Laying mode	Mainly used for direct buried, and can be used in trenches.
Specification	DN57-1020mm(1 inch-64 inch)
Medium temperature	150-350℃
Medium pressure	Less than 2.5MPa
Advantages	1. The heat-insulating material has the advantages of light, durability, excellent heat preservation performance, low heat consumption and maximum utilization of heat energy. 2. Vacuum extraction technology can be used to effectively prevent the corrosion of internal and external steel pipes. 3. Special material heat insulation is adopted between the sliding bracket and the steel pipe to effectively solve the heat bridge problem in the pipe network, and the heat loss of the pipeline is reduced
Related products	1. Joint materials(steel sleeve, insulation material) 2. Fittings(tee, elbow, reducer,adapter)

Main Technical Parameter of High Temperature Resistant Glass wool
Item	Unit	Index
Density	kg/m3	≥48
Average diameter of fiber	mm	≤8
Shot content	%	≥ 0.3
Water content	%	<1
Moisture rate	%	≤2
Thermal conductivity	W/M.k	≥ 0.043
Max working temperature	℃	454

Product Specification

Specification (mm)	Work steel pipe OD*thickness (mm)	Outer jacket pipe OD*thickness (mm)	Insulation thickness (mm)
57/219	57*3.5	219*6.0	60
76/273	76*4.0	273*6.0	65
89/273	89*4.5	273*6.0	70
108/325	108*4.5	325*7.0	70
133*377	133*4.5	377*7.0	80
159/377	159*6.0	377*7.0	85
219/478	219*6.0	478*7.0	100
273/529	273*6.0	529*7.0	105
325/630	325*7.0	630*8.0	125
377/720	377*7.0	720*10.0	140
426/820	426*7.0	820*10.0	140
478/820	478*7.0	820*10.0	140
529/920	529*7.0	920*10.0	165
630/1020	630*8.0	1020*10.0	165
720/1220	720*10.0	1220*12.0	170
820/1220	820*10.0	1220*12.0	170
920/1320	920*10.0	1320*14.0	170
1020/1420	1020*10.0	1420*14.0	170

FAQ

1: Are you a manufacturer or a trading company?
 We are a insulation and anti-corrosive manufacturer which has more than 25 years' history.
 2: Where is your manufacturer? How to visit it?
 Our factory located in Yutian industry Zone,Tangshan City, Hebei Province, China.
 100KM from Beijing Airport;
 110KM from Tianjin Airport;
 125KM from Tianjin seaport.
 
 3: How do you control the products' quality?
 a. Use good-qualityauxiliary materials
 b. Establishing and perfecting supplier examination mechanism.
 c. Effectively controls the product quality by implementing the verification method of the "three-inspection system"
 d. Chinese people's insurance insured products
 
 4:What is the min. order quantity?
 MOQ: 500 meters or one container.
 20Ft Container:about 690 meters( 5.8 meters per piece, ID100MM and OD180mm)
 40Ft Container: about 1400meters(11.8 meters per piece, ID100MM and OD180mm)
 Note: Specific packing quantity need to depend on the specifications of the product.
 
 5: Can I customize some other sizes of products?
 Yes! We can produce according to the customer's request.
 If you have any other questions, please don't hesitate, contact us.
 
 6:Can we get a sample? how to pay?
 Small size(less than DN200mm), the sample is free, and you just pay for the freight.
 large-sized or customed (more than DN200mm), it is necessary to pay the sample fee and the freight.
 
7:Whether your company support Trade Assurance order?
 Yes, we can. (100% product quality protection; 100% on-time shipment protection; 100% payment protection)

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