HUAMEI GROUP

	Heat-Insulating Heat- preservation Material
	Centrifugal Glass Wool Products
	Huamei brand extrusion and expanded polystyrence(XPS) thermal insulation boars
	Anion / Cation exchange resin

Specification

Item		Unit	Specification	Standard
Density		Kg/m3	40-110	GB/T6343
Flammability			B 1	GB/T8624-1997
Oxygen index		%	≥32	GB/T2406
Conductivity factor Average temperature -20℃ 0℃ 40℃		W/(m·k)	≤0.031 ≤0.034 ≤0.036	GB/T10294
Water vapor permeability	Coefficient	g/(m·s·Pa)	≤4.4×10^-10	GB/T17146
Water vapor permeability	Factor	—	≥4.5×10³	GB/T17794
Water absorption ratio in vacuum		%	≤10	GB/T17794
Dimension stability 105±3℃,7d		%	≤10	GB8811
Crack resistance		N /cm	≥2.5	GB/T10808
Compression resilience ratio Compression ratio50% Compression time 72h		%	≥70	GB/T6669
Anti –ozone Ozone pressure 202mPa 200h		—	Not cracking	GB/T7762
Aging resistance 150h		—	Slightly crumpling,no cracks,no pin holes,not deforming	GB/T16259
Temperature		℃	-40-110℃	GB/T17794

Range of specifications of tubing products:

Outer diameter of copper tube (in.)	Outer diameter of seamless tube (mm)	DN Nominal diameter of galvanized tube	Inner diameter of Huamei rubbe(mm)	9mm thick(1.8m/piece)			15mm thick(2m/piece)		20mm thick (2m/piece)		25mm thick(2m/piece)		30mm thick(2m/piece)
Outer diameter of copper tube (in.)	Outer diameter of seamless tube (mm)	DN Nominal diameter of galvanized tube	Inner diameter of Huamei rubbe(mm)	Size (mm×mm)	Piece	Piece	Size (mm×mm)	Piece	Size (mm×mm)	Piece	Size (mm×mm)	Piece	Size (mm×mm)	Piece
1/4			6	6×9	180	180
3/8		6	10	10×9	140	140	10×15	80	10×20	70
1/2			13	13×9	120	100	13×15	80	13×20	50
5/8	14	8	16	16×9	100	95	16×15	60	16×20	50
3/4			19	19×9	100	80	19×15	60	19×20	40
							20×15	60	20×20	40
7/8	22	15	22	22×9	100	70	22×15	60	22×20	40	22×25	30	22×30	25
1	25		25	25×9	80	55	25×15	60	25×20	30	25×25	25	25×30	25
11/8	28	20	28	28×9	60	50	28×15	50	28×20	30	28×25	25	28×30	20
11/4	32		32	32×9	60	45
11/4	32		34				34×15	40	34×20	30	34×25	25	34×30	20
13/8		25	35	35×9	60	40
15/8		25	42	42×9	50	30
15/8		32	43	43×9	50	30	43×15	30	43×20	25	43×25	20	43×30	15
17/8		40	48	48×9	50	28	48×15	30	48×20	25	48×25	20	48×30	15
21/8			54	54×9	50	25
23/8		50	60	60×9	50	20	60×15	30	60×20	20	60×25	15	60×30	15
	76	70	76				76×15	25	76×20	15	76×25	15	76×30	10
	89	80	89						89×20	15	89×25	15	89×30	10
	108		108						108×20	15	108×25	10	108×30	10

Planking(1.1m,1m wide)

Thickness

10mm

15mm

20mm

25mm

30mm

m/piece

20m

20m

10m

10m

10m

Notes:
1.The above specifications are those in common use; special specifications are available on customer request.
2.Planking and tubing are normally in black. Other colors are available on customer request.
3.It is recommended to use planking where outer diameter of tubing exceeds 89mm.
4.Multilayer packing is recommended where the thickness of heat insulation materials needs to be greater than 25mm.

Requirements Table of Thickness for Installation。（only for reference）

Environmental conditions		Dimension of heat-preservation pipe		Suitable thickness at temperature of piping (mm)
Temp	Relative Temp	Inch	mm	13℃	7℃	3℃	-15℃
26.5℃	50%	3/8-3	10-76	10	10	10	15
		3-5	76-127	15	15	15	15
		5-10	127-254	15	15	15	20
29℃	70%	3/8-3	10-76	10	15	15	20
		3-5	76-127	15	15	15	20
		5-10	127-254	15	15	15	25
32℃	80%	3/8-5	10-127	15	15	20	20
32℃	80%	5-10	127-254	20	25	25	35
32℃	85%	3/8-1¹/₂	10-38	20	25	30	45
		1¹/₂-3	38-76	20	30	30	50
		3-5	76-127	20	30	35	60
		5-10	127-254	25	30	40	60
		＞10	＞254	30	40	45	70
32℃	90%	1/8-1/2	3-13	25	32	35	45
		1/2-2¹/₂	13-64	30	35	45	60
		2¹/₂-5	64-127	30	35	45	65
		5-10	127-254	35	45	50	75
		＞10	＞254	35	50	60	75

Factors to be considered for determining thickness of the heat-preservation material:
1.Environmental temperature:The higher the temperature is,the thicker the material is.
2.Relative humidity:The higher the relative humidity is,the thicker the material is.
3.Temperature of medium:The higher the temperature of medium is,the thicker the material is.
4.Diameter of pipe:The more the diameter of pipe is,the thicker the material is.