What should be confirmed before ordering?

Confirm size, connection, material, medium, pressure, temperature and installation conditions against the final project requirement.

Are the listed ratings applicable to every size?

No. Ratings and dimensions vary by model, size, material and end connection. Use the supplier drawing and final technical data for confirmation.

Can materials and dimensions be customized?

The catalog lists standard ranges. Material, connection and dimensions may be supplied to project requirements after technical confirmation.

Which documents can be requested?

Dimensional drawing, material information, inspection record and packing documentation can be requested with the order.

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Pipes Fittings & Flanges Expansion Joints

Expansion Joints

FUB/FVB Air Duct Fabric Compensator

Round or rectangular air-duct fabric compensator; Custom duct size; Low-pressure duct service.

Quick Specifications

Type Round or rectangular air-duct fabric compensator

Size Custom duct size

Material Natural rubber / silica gel fabric layers; Q235 steel flanges

Pressure Low-pressure duct service

Connection Flanged

Temperature By fabric selection

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Product Overview

Fabric expansion joint for round, rectangular and transition ductwork. Key configuration must be confirmed against the actual medium, design pressure, design temperature, connection standard and installation conditions.

Parameter	Value
Model	FUB / FVB
Product Family	Fabric compensator
Size Range	Custom duct size
Pressure Rating	Low-pressure duct service
Body / Main Material	Natural rubber / silica gel fabric layers; Q235 steel flanges
End Connection	Flanged
Temperature Range	By fabric selection
Typical Application	Fabric expansion joint for round, rectangular and transition ductwork.
Ordering Notes	Confirm selected size, connection, material, pressure-temperature limit and required certification before order.
Catalog Reference	Catalog p. 40

FUB/FVB Air Duct Fabric Compensator

Quick Specifications

Product Overview

Q: What should be confirmed before ordering?

Q: Are the listed ratings applicable to every size?

Q: Can materials and dimensions be customized?

Q: Which documents can be requested?

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