Atlantic International Coupling

In order to accommodate a wide array of temperatures, the SecureFlex Style 7000 is available in an assortment of elastomer and reinforcement combinations. Temperature allowances may range from 180°F to 400°F. Primary Elastomers Natural Rubber - 180°F Gum Rubber - 180°F Neoprene - 225°F Nitrile - 225°F EPDM - 250°F Hypalon - 250°F Chlorobutyl - 250°F Viton® - 400°F PTFEFEPTFE - 400°F Other Elastomers Available White FDA NSF Peroxide Cured 300°F rating available for EPDM and Chlorobutyl for Air Service at 50 PSI MAX

Unaflex® “Multi-Purpose” PTFE Expansion Joint styles 112, 113 and 115 are solid-moulded of PTFE and specially designed to withstand the higher pressures and temperatures of today’s piping systems. Their design allows a shorter face-to-face dimension, making them ideal for installation where space limitations are a factor. They are lightweight in design and corrosion resistant. Available in sizes 1” to 48” I.D. and for temperatures ranging from -20◦F to +400◦F. Note: For sizes above 12", 2-Ply FEP joints are available

UNAFLEX® "MATCHLESS" Metal Bellows are manufactured from solution annealed ASA240 321SS sheet rolled into a tube and seam welded. Multi-ply bellows can be designed and manufactured based on the application and design requirements. UNAFLEX® has a wide variety of MATERIALS available to design and manufacture bellows. UNAFLEX® has the most commonly used metal bellows materials and thicknesses in stock to serve our customers faster. UNAFLEX® "MATCHLESS" bellows conform to the latest EJMA standards.

UNAFLEX® can custom design and manufacture various types of expansion joints based on your needs and requirements of the system. Some commonly used non-standard expansion joint types are: Dual Expansion Joints Drilling Information Dual expansion joints are used where axial movement is larger than can be absorbed by a single expansion joint. The dual assembly consists of two single bellows connected by an interconnecting weld end. In some cases, this interconnecting weld end has an integral anchor base. The anchor base is designed to withstand the forces required to move either bellows but not for pressure forces. When no anchor base is used, interconnecting weld end must be anchored with standard pipe anchors. Dual expansion joints can also be used where large amount of movement in any combination (i.e. axial, lateral and angular rotation) is required which cannot be absorbed by a single expansion joint. In this type of application, the interconnecting weld end is not anchored but the remaining system must be properly anchored and guided. back to top of page

The SecureFlex Van Stone interlocking flanges are compatible to mate with Lap-Joint Stub ends, Raised Face or Flat Full Face type flanges. For other mating flange surfaces (wafer type check or butterfly valves), a full face hard spacer may be required. Consult UNAFLEX® Engineering. The standard floating flanges are 150# drilled epoxy-coated carbon steel. Galvanized, stainless steel and other alloy type materials are also available. DIN-PN-JIS and other non-standard drill patterns customizable to your needs. Kevlar® wrapped around a solid steel ring in the base of the rubber flange portion eliminates the tire cord from “pulling out” of the flange and provides superior sealing force when compressed against the mating flange during installation. The ring also prevents the distortion of the sealing surface if the installation tolerance is exceeded providing an “extra” margin of safety. Polyester tire cord may be substituted, with customer approval, for sizes 14” and above if design temperature does not exceed 250°F. Our Flexible Tooling process allows us to manufacture the Expansion Joints to Non-Standard face-to-face dimensions. For smaller dimensions than Standard, design movements may be reduced. Double and Triple arch expansion joints are also available for greater movement and reduced spring rates. We can also manufacture Concentric and Eccentric Tapers and Offset styles. Sizes up to 144” can be constructed. Standard control rods that install out-board of the mating flanges are standard. Integral tie rods attached to the floating flanges can also be supplied.

Expansion joints are a crucial component to an industrial piping system, allowing for movement caused by thermal expansion and equipment vibration. This expansion and vibration can be detrimental to the integrity of the machines and nearby equipment. This movement can also increase the risk of failure. Protecting your piping investment with proper installation of expansion joints is a reliable way to prevent failures and unnecessary down time. Style 1000 Features and Benefits Versatile, reliable and economic solutions to your piping needs Delivers twice the movement allowances than standard arch construction Double reinforced construction provides longer joint life expectancy Hand wrapped custom built construction to allow for design variations, while still offering wide arch movement Suited for temperatures in excess of 350°F (176°C) depending upon service, reinforcement, and compound Exceptional directional movement absorption capabilities Available in a full range of elastomers to enable multi-purpose applications Construction provides woven polyester fabric and reinforced wire to create superior performance characteristics Standard and custom dimensions available Supports a piping system pressure range of 85 Psig to 225 Standard and additional drilling available including Navy, ANSI, Metric and JIS Tube and cover materials available in: EPDM, Natural Rubber, Buna-NNitrile, Silicone, Neoprene, Gum Rubber, Hypalon, PTFEFEPTFE, Butyl, SBRGRSBuna-S, Viton®Fluorel and Chlorobutyl Reinforcement Materials and Compatibility: Polyester, Fiberglass, Nomex, Nylon, Rayon and Kevlar® Superflex Joints can be specially constructed for vacuum service and can be reinforced for higher pressure applications (SEE Style 200XL).