Victaulic Coupling Clamp style Flexible Coupling style 77

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Standard Grooved Coupling style 77 submittal Standard Flexible Coupling Style 77 Style 77 couplings are designed with cross-ribbed construction to provide a strong component for pressure piping systems. The coupling is offered in a two piece housing design from  24" / 20  600mm sizes for pressures up to 1000 psi/ 6900 kPa. All sizes are provided with plated bolts and nuts. Galvanized and stainless steel housings are also available. Independent testing has shown the Style 77 coupling to be an effective stress relief and vibration attenuation device providing performance superior to braided steel and elastomeric arch-type connectors when used in close proximity to the source of vibration. Refer to 26.04 for vibration information. Independent testing has shown that Victaulic Style 77 flexible couplings provide exceptional functionality during and after earthquake conditions. Refer to 26.12 for further information. Performance data presented in this document is based on use with standard wall, carbon steel pipe. For use with stainless steel pipe, please reference document 17.09 for pressure ratings and end loads. When used on light wall stainless steel pipe, the Victaulic RX roll set must be used to roll groove the pipe. For further information regarding roll grooving stainless steel, refer to document 17.01. For 14  24" / 350  600mm flexible roll groove systems, Victaulic recommends Style W77 AGS couplings. For more information, request submittal publication 20.03. material SpeCiFiCationS Housing: Ductile iron conforming to ASTm A-536, grade 65-45-12. Ductile iron conforming to ASTm A-395, grade 65-45-15, is available upon special request. Housing Coating: orange enamel. ? Optional: Hot dipped galvanized and others. Coupling gasket: ( specify choice* ) ? ? Grade ? E? EPDM ( All other sizes) ePDm ( Green color code) . Temperature range ? 30 F to + 230 F/ ? 34 c to + 110 c. Recommended for hot water service within the specified temperature range plus a variety of dilute acids, oil-free air and many chemical services. uL classified in accordance with ANSI/ NSF 61 for cold + 86 F/ + 30 c and hot + 180 F/ + 82 c potable water service. NoT RecommeNDeD FoR PeTRoLeum SeRVIceS. ? Grade ? T? nitrile Nitrile ( orange color code) . Temperature range ? 20 F to + 180 F/ ? 29 c to + 82 c. Recommended for petroleum products, air with oil vapors, vegetable and mineral oils within the specified temperature range. Not recommended for hot water services over + 150 F/ + 66 c or for hot dry air over + 140 F/ + 60 c. * Services listed are General Service Recommendations only. It should be noted that there are services for which these gaskets are not recommended. Reference should always be made to the latest Victaulic Gasket Selection Guide for specific gasket service recommendations and for a listing of services which are not recommended. NOTE: Additional gasket styles are available. Contact Victaulic for details. bolts/ nuts: Heat-treated plated carbon steel, trackhead meeting the physical and chemical requirements of ASTm A-449 and physical requirements of ASTm A-183. ? optional bolts: ASTm F-593, Group 2, Type 316 stainless steel oval neck track bolts. ? optional nuts: ASTm F-594, Group 2, Type 316 stainless steel heavy hex nuts with galling resistant coating. ? Supplemental lubricant is recommended for services installed at or continuously operating below 0 F/ ? 18 c