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FVB Air duct joint

Composite parts:
Bolt, nut, washer, inside sleeve flange, corrugated, back plate flange, sleeve, flow mark

Material list:
1)Flange: Q235 Flat steels, angles
2)Inner and outside rubber layer: Natural and synthetic rubber
3)Reinforcing layer: Glue fiber febric
4)Sleeve: Q235, A3

Features:
1) reasonable structure, good elasticity, large range of compensation pipeline and little counterforce to the brackets of pipeline.
2) shock absorption and noise decrese, heat and dust insulation
3) the displacement can be deflected to prevent damage caused by subsidence of connected brackets and equipment base.
4) it is convenience to installation and maintenance
5) good resistance to milling, heat, aging and corrosion
6) little resistance and little weight, each performance is better than the compensation device of other materials
7) the temperature range of media is wide: -40° C~-150° C

Delivery time:
Within 30 Days after receipt of the deposit

Packaging term:
Unfumigation wooden case (Out package) and Plastic film and Textile membrane(inside package). We can make change as your request.

No.	Description	Material	Quantity
1	Flange	Flat steels 、angles	2 piece
2	Inner and outer layer rubbers	Natural rubber synthetic rubber	1 piece
3	Reinforcing layer	Glue fiber fabrics	2—4 layers
4	Sleeve	Q 235、A3	1 set

Compensation properties	FVB	FUB
Compensation length	±100mm	±90mm
Working pressure	≤4500pa	≤4500pa
Temperature range	--40℃--300℃	--40℃--300℃
Installation length	300—450mm	300—450mm
Tensile elongation variables	≤15％	≤15％
Sum of distances between both ends supports		≤50m
Distance between both ends slide supports		2—4m
Rubber properties
Tensile strength	≥12mpa	≥12mpa
Rupture elongation	≥300﹪	≥300％
Rupture elongation	≤25％	≤25％
Hardness	58±3℃	58±3℃
Hot air aging	70℃ⅹ72h	70℃ⅹ72h
Rupture elongation variables	≥20％	≥20％

Type mm	Duct outside dia.	D1	D2	D3	b	Connection bolt qty N ⅹΦ m	Weight /kg
FVB500	529	600	640	469	8	16ⅹM16	89.8
FVB600	630	705	755	570			144.6
FVB700	720	810	860	660		18ⅹM16	134.8
FVB800	820	920	975	760		18ⅹM20	192.0
FVB900	920	1020	1075	860		20ⅹM20	213.8
FVB1000	1020	1120	1175	960		24ⅹM20	241.6
FVB1100	1120	1220	1275	1060	10		263.0
FVB1200	1220	1320	1375	1160		30ⅹM22	312.0
FVB1300	1320	1420	1475	1260			335.0
FVB1400	1420	1520	1575	1360		36ⅹM22	369.6
FVB1500	1520	1630	1685	1440		36ⅹM22	349.4
FVB1600	1620	1730	1785	1540			477.5
FVB1700	1720	1830	1885	1640		44ⅹM22	515.9
FVB1800	1820	1930	1985	1740			536.0
FVB1900	1920	2030	2085	1840			565.2
FVB2000	2020	2130	2185	1940	12	44ⅹM27	725.2
FVB2200	2220	2340	2410	2140		50ⅹM27	881.8
FVB2400	2420	2540	2610	2340	14	54ⅹM27	953.0
FVB2500	2520	2640	2710	2440		56ⅹM30	1057.5
FVB2600	2620	2760	2810	2540		58ⅹM30	1098.4
FVB2800	2820	2960	3030	2740		60ⅹM30	1260.9
FVB3000	3030	3160	3230	2940		64ⅹM30	1347.8
FVB3200	3220	3360	3430	3140		72ⅹM30	1441.5
FVB3400	3420	3560	3630	3340		74ⅹM30	1523.0
FVB3600	3620	3760	3840	3540	16	78ⅹM30	1825.1
FVB3800	3820	3960	4040	3740		80ⅹM30	1924.1
FVB4000	4020	4160	4240	3940		84ⅹM30	2023.0