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TM Axial Compression (Inches) Axial Extension (Inches) Lateral STYLEOffset (Inches) Axial Compression (Inches) 52 0 Axial Extension (Inches) U-DESIGN forLateral standard movements Offset (Inches) PROCO Style 520 U-Type Fan/Duct Connectors: The most economical of the integrally Axial flanged designs, the Style 520 is predominately used for fan vibrationCompressionapplications. The fan/duct connector is manufactured in a U-Design configuration with(Inches) a minimum of one (1) to two (2) plies of reinforced fabric vulcanized into a homogeneous product that is 3/ Axial 16", 1/4" or 3/8" thick. The Style 520 is manufactured with continuous corners. No splices Extension will be made in the corner areas. Listed below is information regarding the Style(Inches) 520 non- metallic fan/duct connectors: System Design Considerations: In designing the Series 500, Style 520 non-metallicLateral fans/ Offset duct connector, several considerations must be taken into account to ensure long lasting(Inches) service. � System Media: The designer and/or requesting party should define the system me- dia to determine the correct elastomer for each application. Evaluation of the gas/air composition should be madeduringdesign of thenon-metallic fan/duct connector. Abra-ItemApplicationSizeTemperaturePressureMovements sion characteristics and external environment conditions should also be taken into ac- count when specifying the fabric element. � System Temperature: The system operating temperature is of primary importance to the design of a non-metallic fan/duct connector, although the systemdesign is generally specified. It is important to distinguish between operating and design as "design" can include a significant safety factor which may result in an upgraded material or design selection. � System Pressure: Normal operating pressures and maximum pressures (positive and negative) under upset conditions should be specified. Combinations of pressures and temperatures should be specifically identified. � Movements: Movements consist of thermal growth resulting from both operating and upset conditions. Individual movements resulting from both conditions should be specified. Maximum installation misalignment should also be taken into account to de- termine if the non-metallic fan/duct connector design is capable of reacting to a combi- nation of the total maximum movements. Style 520 Available Materials Design Data Sheet Fan/Duct Connector - Style 520 ForSpecific Elastomer Recommendations, See: PROCOTM "Chemical To Elastomer Guide" Tag No.: PROCO Nominal No.of Maximum Maximum Styles Material Elastomer Body ReinforcementOperatingPressure Quantity: Code Thickness Plies Temp �F Rating (PSI) BB Chlorobutyl 300� EE EPDM 3/16" 1 300� �2 Equipment Adjacent HH Hypalon� 225� 520 The Connector: NH Neoprene/Hypalon� 1/4" 2 225� �3 NN Neoprene 212� Media: Gas or Air NP Neoprene/Buna-N 3/8" 2 212� �5 (circle one) G A VV Viton� 400� Location of Joint: NOTES: 1. Hypalon and Viton are registered trademarks of DuDont Dow Elastomers 2. ExpansionJoint "Cover" (outside) can be Hypalon painted on special order.(Inlet, Discharge, Bypass) 3. Standard fabric reinforcement is polyester. Other high temperature materials are available upon request. 4. For vacuum applications, all fabric elements should retain sufficient setbackfrom the duct to ensure that belting does not protrude into the flow stream. Duct I.S. or Diameter: Non-Metallic Fan/Duct Connector Weight Face To Face: IN. (pounds per square foot of periphery) Nominal Elastomers Retaining Operating: �F Body Chloro- Neoprene/ Neoprene/ Rings/Bars � � Thickness butyl EPDM Hypalon Hypalon � Neoprene Buna-N Viton Linear/Foot 1/4" 1.6 1.6 1.8 1.8 1.8 1.8 2.5 Design: �F 3.5 3/8" 2.5 2.5 2.6 2.6 2.6 2.6 4.8 Operating: PSI Maximum Movement Capabilities 6" Face To Face 9" Face To Face 12" Face To Face Design: PSI Axial Compression: IN. Axial Extension: IN. .75 .25 .50 1.25 .25 .75 2.0 .50 1.0 NOTES: 1. LateralOffsets shown above are based on movements prior to axialcompression. Greaterlateraloffsetmay be obtained ifthe fan/duct connector encounterssimultaneous compression.Lateral Offset: IN. 2. Axial extension may be increased by pre-compression of the fan/duct connectorduring installation. any pre- compressionof thefan/ductconnector will equally reduce theratedaxial compression movement.
Goodyear Rubber Products
