...because we are the GOLD STANDARD in the manufacture of expansion joints and hoses!

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2 Why unaflex?...because we are the GOLD STANDARD in the manufacture of expansion joints and hoses! Expansion joints are critical system components in a vast array of industries. Their purchase and supply should not be trusted to just anyone. The Unafl ex QUALITY MANAGEMENT SYSTEM is certifi ed to ISO 9001:2008 which insures quality control of the product is rigorous and routinely monitored. Compliance inspections and audits are conducted throughout the year to guarantee continuity and compliance with all ISO requirements. Our product line includes Rubber Expansion Joints, Metal Bellows Type Expansion Joints, High Temperature Fabric Expansion Joints and PTFE Expansion Joints, as well as Flexible Braided Metal Hose. All are manufactured in our South Carolina facility and we encourage plant tours. Our state-of-the-art manufacturing facilities provide all of the specialized equipment and tooling necessary to produce the diversifi ed product line Unafl ex offers. We provide FULL TRACEABILITY of our products from raw materials through the fi nished product. EXPERIENCED FACTORY SUPPORT is available to all customers who desire a more personal and hands-on approach to ensure the proper selection, production, delivery and installation of our product. PROFESSIONAL ENGINEERING SERVICE is provided by staff highly experienced in the use of fi nite element analysis software and auto-cad. Unafl ex employs some of the most knowledgeable sales engineers in the industry who are available for prompt, courteous and exceptional professional service. Our customer service is THE best in the industry. Distributors and Dealers in partnership with Unafl ex are located throughout the United States of America and are the most reliable and dedicated suppliers available for our specialized product line. Many of our partners stock our full line of products and are able to provide IMMEDIATE service. FUTURE SUPPORT of our product is how we attract and keep our customers. Unafl ex, a wholly owned family business, has a long and successful track record in the industry. We look forward to many more! 3901 NE 12th Avenue Pompano Beach, FL On the Web at sales@unaflex.com CALL TOLL FREE: Fax (954)

3 Table of Contents Introduction to Therma-Flex Product, Industry and Special Applications Materials Technology Anatomy and Structure of an Expansion Joint Movement and Capabilities Single and Multi Layer Expansion Joints Standard Non-Metallic Expansion Joints Installation Tools and Accessories FABRIC Therma-Flex Non-Metallic Ducting Expansion Joints

4 Introduction to Therma-Flex Expansion Joints Benefits of Utilizing Expansion Joints Fabric Expansion Joints offer a number of advantages, particularly in plant design and building: They compensate for movement in several directions simultaneously Virtually no reactive forces Require little space for installation Easy adaptation to existing physical conditions More movement in shorter face-to-face Less force to fl ex than metal expansion joints Excellent corrosion and chemical resistance Temperature capability range (-110 F to more than 2000 F) Lower shipping and installation costs easy to transport and easy to install Variety of fl exible belt materials available: -Single-layer and composite belts -Elastomers have excellent abrasion resistance -Custom designed for each specifi c application Design Considerations Media: Internal and External Environment Temperature: Constant operating and maximum excursion Pressure: Normal positive or negative Movements: Axial and lateral, simultaneously or independently Installation: Existing equipment and duct fl anges Assembly: Factory-assembled or fi eld-spliced Baffles Baffl es are usually not necessary with elastomeric expansion joints due to the tube resistance to most abrasive particular matter. However, baffl es must be used with fabric composite joints to protect the inner surface form particulates in the gas stream. Unafl ex can supply baffl es fabricated from carbon steel, stainless steel, or other materials as required. Retaining Rings Standard construction calls for 2 wide, 3/8 thick bars with slotted holes for easy installation. Material of construction can be carbon steel, corten or stainless steel. Availability U-type Belt type Square Rectangular or round No size restriction Choice of FF dimension, depending on movements Associated Metal Work: Backup bars, frames, fl anges and baffl es. 4 FABRIC Therma-Flex Non-Metallic Ducting Expansion Joints Toll Free: sales@unafl ex.com

5 Product Applications Industrial applications can be separated into general categories based on the media composition (Air or Gas) and temperature. This section is designed to aid in the selection of the appropriate expansion joint for the specifi c application range. All plants are unique, therefore the service locations and temperatures may vary. This section only serves as a guide and should be confi rmed with a Unafl ex Sales Engineer. Ambient Air Services (-40 F to 400 F) Ambient air temperature clean air without particulate or chemicals to damage the fl exible element. Expansion joint is used frequently for vibration and sound attenuation from fan equipment. Locations for use: FD Fan Intake/Outlet Primary Air Fan to Air Heater Service Air Intakes Primary Air to Recovery Boiler Primary Air to Recovery Boiler A Unafl ex integrally fl anged elastomeric joint is suggested, using either the THERMA-FLEX or MIGHTY SPAN styles. Neoprene, EPDM or Viton single layer belts are frequently used. Hot Air Services (500 F to 800 F) Clean air coming into contact with hot fl ue gases at the Air Pre-Heater where temperatures are elevated with minimal particulate and or gas carryover. Expansion joint will see thermal movements and vibration. Elevated temperatures require a composite fl exible element and a fl ow liner. Locations for use: Air Heater/Air Outlet Over Fire Air Fans Secondary Air fan Mill Air A THERMA-FLEX fl at composite belt with a bolt in or weld in frame design and a fl ow liner is suggested. The weld in outboard angle frame design with fi eld welded fl ow liner (TWCP600VIFL) is shown. Low to moderate temperature Flue Gas services (150 F to 600 F) Flue gas which has passed through an air pre-heater and dust collector to reduce the temperature and particulate level. Flue gas may cycle near the dew point where condensation can occur and chemicals are present. Expansion joint may see thermal movements, vibration and chemical attack. Locations for use: Precip. Outlet I.D. Fan Inlet/Outlet Scrubber Inlet/Outlet HRSG Inlet/Outlet Re-heater Inlet/Outlet A Unafl ex single-layer belt with chemical barrier is suggested in either integrally fl anged or fl at belt type. Such a as the THERMA-FLEX weld in outboard angle frame design and PTFE coated single layer belt with gas fi lm layer (TWFPR500TA) shown. Hot Flue Gas Services (600 F to 1200 F) Flue gas directly after combustion stage at elevated temperatures with possible particulate present. Expansion joint is used for possible large thermal movements at elevated temperatures. Locations for use: Economizer Outlet Cyclone Inlet/Outlet Precip. Inlet Recovery Boiler Outlet Air Heater Gas Inlet/Outlet Gas Recirculation System THERMA-FLEX high temperature composite fl at belt style setback frames, cavity pillow and fl ow liners are suggested. The standard Z frame design with telescoping fl ow liners (ZZWCP1000FPRP shown) or J frame with shop liner are two designs used in these applications. Toll Free: sales@unafl ex.com FABRIC Therma-Flex Non-Metallic Ducting Expansion Joints 5

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23 Excellence in Manufacturing UNAFLEX LLC. ISO 9001:2008 CERTIFIED CALL TOLL FREE: Visit to download our full line of product catalogs STANDARD WARRANTY All merchandise sold by UNAFLEX is subject to this Standard Warranty. Our products are warranted to be free from defects in material or workmanship. Our liability for breach of any and all warranties, expressed or implied, is limited to refunding our invoice price of the product, or at our option, to replacement of the product. If any product manufactured by UNAFLEX is found by us to be defective either in material or workmanship, under proper usage and service, the invoice price will be refunded or at our option will be replaced free of charge including transportation charges, but not cost of installation. The refund of the invoice price or the replacement of the product is the maximum liability of the company. The sale of our products under any other warranty or guarantee, expressed or implied, is not authorized by the company. Technical statements and engineering data in this catalog is the most accurate information available at the time of printing and are subject to change without notice. As UNAFLEX does not supervise or control the use of our products, UNAFLEX cannot be responsible for improper use or misapplication of catalog data NE 12th Avenue Pompano Beach, FL Mail: P.O. BOX 5088 Ft. Lauderdale, FL TOLL FREE: Ph: Fax: Factory Facilities in Anderson, SC. Warehouse Facilities in Houston, TX