FUB Air Duct Expansion Joint

FUB Air Duct Rubber Compensator is an independent research product of our company, its corrugation is wider and higher than similar products, which makes it has a larger compression, extension, angle direction, crosswise and deflection displacement. It is an extremely ideal pipe fitting for shock absorption, noise reduction, smoke prevention and dust control in environmental protection area.

No.	Item	Material	Notes
1	Wrap component	Q235，SS304，SS316，etc.	Oil oaint anti-corrosion
2	Backboard flange	Q235，SS304，SS316，etc.	Oil oaint anti-corrosion
3	Rubber	NER，NR，EPDM，CR，IIR
4	Wrap component	Q235，SS304，SS316，etc.	Oil oaint anti-corrosion

Technical parameter	FUB type duct rubber compensator
Compensation length	± 90mm
Working pressure	≤4500pa
Temperature range	~40℃ – 150℃
Installation length	300 – 450mm
Tensile length change rate	≤15%
Tensile strength	≥12Mpa
Elongation at break	≥300%
Permanent set at break	≤25%
Hardness	58 ± 30
Air aghing	70℃ × 72h
Change in elongation at break	≥20%

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