![]() Securely weld or bolt the bottom of spring to the structure. Type D has a rod which passes through the hanger, permitting adjustment from the top.ġ. These rest on the supporting structural member, usually on a pair of channels. After removing the upper travel stops turn load column counterclockwise to bring the load indicator back to the cold load mark. To remove these travel stops, turn load column or turnbuckle clockwise until travel stops become loose enough to be removed by hand.Ģ. The upper travel stops must be removed now. Cut the shipping bands off and remove the lower travel stops. Attach a pipe clamp or other hardware to the bottom end of rod. Securely connect the top attachment to a point on the structure directly above the pipe the spring is to support. The pipe is then suspended below the spring can using a rod assembly.ġ. These are then attached to the structural support. ![]() Types B and C are provided with one or two lugs, respectively. Type A is supplied with a threaded bushing for a threaded rod which in turn is connected to the structural support. This is a pressure plate lug which protrudes out from the slots in the can.įigure 2: Travel Stops for Variable Spring HangersĮach of these is provided with an attachment that connects the top of the spring can to an overhead structural member. Note: All load readings are taken from the bottom of the indicator. They are removed by cutting the shipping bands shown in the figure. See a video on how to remove travel stops.įigure 1: Types of Variable Spring Hangers These stops must be removed during installation while the cold load is on the spring. Thus, hydro testing must be done with the stops in place. While these are in place, loads applied to the unit, such as hydro-testing loads, will not be transferred to the spring coil. The travel stops are painted red, and are held in place with stainless steel shipping bands, as shown in Figure 2. During assembly the coils of the variable springs are pre-compressed to the cold load position and travel stops are installed. More information on the individual types may be found in our pipe supports catalog or on our Web Site,. The primary difference between the types is in the manner in which they are supported, and thus the details of installation will be different for each type. There are seven types of variable spring hangers, designated by the letters A-G. ![]() Piping Alignment and Pipe Strain Solutions.Case Study: Engineered Support for Vibration problem.1400 Pipe Shoe Solution for Vibration in Piping Emergency Custom Steel Structure and Support Design and Fabrication.Spring Support and Expansion Joint Audits.Pipe Stress Analysis for Plant Personnel.Pipe Stress Analysis Case Study – Pump Discharge.High Temperature Pipe Supports (Hot Shoes) (HS-1000 – HS-6060).Cryogenic Pipe Supports (Cold Shoes) (CS-1000 – CS-6080).Pipe Shields Insulated Pipe Supports (Cold & Hot Shoes) (A1000 – G3000).Insulated Pipe Supports (Figures 4500-4800).Standard line of carbon steel base plates available. 75 SD and 76 SD for additional pipe roll designs. Be certain to order oversized rolls when insulation and protection saddles are required. For further dimensions of stand, see Fig. Ordering: Specify pipe roll size, figure number, name and finish. If used with pipe covering protection saddle, see Figure 160 to Figure 166A for size of pipe roll.If roll is to support bare pipe, select the size directly from nominal pipe size (see below).Low coefficient of friction between pipe and resilient coated pipe roller.Corrosion resistant - for protection against severe weather conditions, moderate corrosive conditions such as marine atmospheres and weather resistant to ultra-violet radiation.Non conductive pipe rollers - prevent the passing of current from pipeline to structure.Lateral adjustment is secured by stand sliding on each of adjusting screws.įeatures: Advantages of pipe rollers with a protective resilient coated covering. 275, can be used for supporting tunnel piping, etc., by resting ends of adjusting screws on structural steel angles, channels, etc.Īdjustment: Vertical adjustment is obtained by use of the four adjusting screws located on corners of stand. Adjustable pipe roll stand without base plate, Fig. Installation: Base plate is provided with two holes for anchorage to floor, pier, structural support and similar constructions, as well as to welded steel brackets Fig. Service: For support of pipe lines where longitudinal movement due to expansion and contraction may occur and where vertical and lateral adjustment during installation may be required.
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