Huyglas®

For pulsejet filterbag applications

By

Introduction

1.Understand the basics of Huyglas

2. Know the core products

3. Learned how Huyglas has upgraded

Huyglas is:

• Fiberglass Needlefelt

• Treated with silicone/PTFE

• Made for demanding high temperature filtration applications.

Where has Huyglas been used?

• Product collectors: Carbon Black, Cement Clinker, and TiO2

• Kilns: lime, cement, koalin, and asphalt.

• Smelters: lead and tin.

• Incinerators: medical, municipal, and chemical.

• Industrial boilers: stoker fired, pulverized coal, fluidized bed, and hogged fuel.

Huyglas Basics

Product Weight (osy) Temp. (F) Efficiency Fiber Diameter (μm)

1607 27 525 Highest 3.8

1701 16 525 Highest 3.8

1405 22 525 High 6

1105 19 525 High 6

• Product selection is determined by individual application requirements. Further information is available upon request.

Where can Huyglas be used?

• High Temperature: 300-5250F, with excursions to 6000F

• Where the conditions risk chemical attack.

• Very fine particulate

• High efficiency requirements:

0 0.001 0.002 0.003 0.004

Grains/ACF

22oz Glass

Ryton 16oz

P84 14oz

Huyglas 1607

22 osy/ ePTFE

Equivalent Emissions

Huyglas Improvement

• Needled fibers must adhere to the woven support fabric

• Typical end-of-life is delamination of the felt from the support fabric

• Fiber abrasion by the cage creates the delamination

The DuraFlex coating improves:

• DuraFlex resists delamination by:

– Creating an abrasion resistant layer on the cage side of the fabric

– Increasing the bond strength between the felt fibers and the support fabric

• Providing longer bag life to the end user.

Showing the DuraFlex difference:

–The difference in bond strength.

–View the following photos:

Two Views of Uncoated Fabric(top and side)

Side view of coated 1105

Coated fibers break before delamination.

Conclusions:

The DuraFlex coating applied to Huyglas fabric

provides:

• Increased protection from abrasion.

• Stronger bonding of the batt fiber to scrim

• Ultimately, longer baglife.

For further questions

• Please email FSI at: Sales@HighTempFelt.com