Riser Support

LINKRAN Riser Support

Supporting mechanical and electrical installations in risers is one of the most challenging issues in supporting construction and industrial projects. In the riser support system, the important point is the transmission and controlling of the installation gravity force by the friction between installation and its retainer connections. Therefore, it is important to use a proper mounting support (riser support) such as riser pipe clamps.

There are remarkable notes in riser support designing which their consideration is essential for accuracy, such as important impressive parameters structures which is the support connecting method to connect support to the risers. In the risers, the best way to connect support to the riser structure is applying the anchor system for connecting the support to the riser structure. By the way, regarding to the risers type, the anchor system cannot be used in some of the support and riser structure connection. In these cases, in modern modular supporting system, there are different methods. This included steel chassis and nut and bolt connections.

Alongside these issues, the riser supports can be designed in static and dynamic design classes. In static supports, the main purpose is to control the gravity load of the supports. Since the installation is oriented in the vertical direction (in the gravitational force direction), the gravity load is controlled by the frictional force between the equipment and the retainer connection. In the dynamic design class, the design criteria is both controlling gravity loads and also controlling the lateral loads caused by earthquake and dynamic loads. Dynamic loads to the support on the riser system can have various sources, including:

Earthquake forces: Dynamic loads caused by earthquake forces coming into support in all three directions

Dynamic loads caused by the proportional motion of the pipes

As risers usually move throughout the classes, on the basis of the free length of the installations, it is important to control the longitudinal movement of the installations subject to expansion and contraction caused by temperature changes. For example, standard steel expands at approximately 0.8 ”(20 mm) per 100 ft (5.30 m) of pipe length at 37 ° C. Thus, it is important to control the longitudinal movement of the tube due to this expansion and contraction. For this purpose, expansion joint, loop and fix points should be used which require special supporting to control these dynamic loads.

Dynamic loads caused by fluid motion (flow)

In mechanical systems, fluid motion within the equipment usually causes dynamic impacts and loads. For example, in a fire extinguishing system, when the system is activated, fluid movement inside the pipes entails numerous dynamic loads on the supports. Since there are usually line feeders in the risers, the installation size is higher than the horizontal installation and consequently the dynamic impacts and loads on these pipes require unique support and restraint.

Fan Avaran Parsian Installation Company (Fan Top)

As a manufacturer in the mechanical and electrical installations industry, we are proud to provide you with national products with suitable prices and global quality. Fan Top Co. is supplier of variety types if the installation supports including galvanized steel profiles, mechanical vibration isolators, beam clamps and air ducts flange systems with brand name: LINKRAN all over the country.