More details and pictures of this hanger will help you. Please post pictures of the hanger on this thread. I suggest that you talk directly with the sales engineer at ANVIL and send him pictures of your hanger problem -> will do, I was not sure which company actually took over from grinell as many comanies use the same numbering system. Is this hanger on a steam piping system ? Is the piping clamp/clevis and other hardware made of alloy steel ? Are the coils coated ? -> No, no, no The line I am looking at connects to a tank and this is the 1st support from the tank nozzle -> Movements are due to tank settlement and nozzle rotation. Are the adjacent spring hangers on the system in good repair or at the limits of their travel ? - do they have broken coils ? ->no additional hangers here. Has this hanger been "topping" or "bottoming" out at piping operating temperature ? -> No Is this a constant or variable spring hanger ? - Have you checked for any failed/corroded spring coils ? - Can you see the coils ? -> variable spring, yes- yes This is an example picture of an old spring hanger with the can removed and showing failed coils: I also suggest that you cut the corroded can off of the hanger, inspect and count the spring coils and relay this information to ANVIL I suggest that you talk directly with the sales engineer at ANVIL and send him pictures of your hanger problem Is this hanger on a steam piping system ? Is the piping clamp/clevis and other hardware made of alloy steel ? Are the coils coated ? This catalog contains a complete line of pipe. Are the adjacent spring hangers on the system in good repair or at the limits of their travel ? - do they have broken coils ? is proud to present its new Pipe Hanger and Support Engineering. Has this hanger been "topping" or "bottoming" out at piping operating temperature ? Is this a constant or variable spring hanger ? - Have you checked for any failed/corroded spring coils ? - Can you see the coils ? I have dealt with powerplant spring hanger repair and replacement in the past. Pictorial Anvil catalog items are made from the following materials. Hanger-Type Support: Designed for use where headroom is limited or where an obstruction prohibits the use of a single spring hanger.The Grinnell company became ANVIL a number of years ago. Pipe Hangers and Supports Manufacturing Excellence Custom Engineering Anvil Pipe. Hanger-Type Support: Designed for use when spring adjustment must be below the structure on which the spring housing is being supported.īase-Type Support: Designed for supporting piping from below. Hanger-Type Support: Designed for use where variable spring hanger is positioned above supporting structure with spring adjustment made from the top. Top of spring housing has double lugs to accommodate a single-lug attachment from the top support. Hanger-Type Support: Designed for use where headroom is limited. Top of spring housing has a single lug to accommodate a double-lug beam attachment from the top support. Single-Lug Hanger Type Support: Designed for use where headroom is limited. Anvil Engineered Pipe Supports provides design. For more than 150 years, Anvil has provided the highestquality pipe products and services with integrity and dedication to superior customer service. Top of spring housing is a rod which allows the spring to attach to a support. Anvil International is one of the largest and most complete manufacturers of pipe fitings, pipe hangers and piping support systems in the world. Hanger-Type Support: Design for use where headroom is unlimited. Any parts that are not Rilco standard (Example: lifting lugs).Preferred spring housing final coating/finish.One of the conditions mentioned in the above chart (selecting the correct spring).Hot load, Cold load, Movement & Spring rate Part No., Size, Cold load, Movement & Direction Part No., Size, Hot load, Movement & Direction One of the first 5 conditions in the chart below must be met (condition 6 is used to obtain pricing only) Condition In order to manufacture a variable spring, some of the following data will need to be known: View our Variable & Constant Spring Catalog for complete specs. Variable supports are typically installed where thermal movements cause the system’s position and dimensions to change however, if the variability surpasses 25%, Rilco recommends our Constant Supports or the Rilco Cam Roller Constants.Īll of the Rilco spring units are designed to meet or exceed the requirements of the ASME Code for Pressure Piping, ASME B31.1, B31.3, and MSS SP-58. As the supported structure moves upward the force exerted by the spring decreases while the opposite occurs during downward movement. The force of spring varies through the range of travel, hence the name “Variable Supports”. Variable Springs are used to support piping which is subject to thermal expansion and other factors that may cause the pipe support point to shift.
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