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> Back Specification Downloads > YS-AG® Seismic Spring Mountings

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Patent No.: M251057 (New type)

From theoretical and practical earthquake simulations, the YS-AG has proved capable of resisting up to 0.66G.

YS-AG¡¦s compression levels are 25, 40 and 50mm, which can achieve a very low level natural frequency with high anti-vibration efficiency.

The springs are baking-varnished and covered with rubber tubes for protection and better weather resistance.

"The steel part is made of carbon steel (SS41); the body adopts hot-dip galvanized anti-rust process for longer lifetime. Also available in stainless steel (SUS304). "

The external shell is installed with a controlling screw for vertical restraint, which can prevent spring elongation when the load reduces.

U-shape damper rubber is provided around the controlling screw for vertical restraint and is placed in contact with the snubber shield. The washers for damper rubber are provided at the top and bottom to absorb horizontal seismic force.

There is a 6mm rubber muffle friction pad between the base plate and supports, which can prevent noise being generated from high frequency while also preventing slippage.

Applicable for air-conditioning equipment, e.g. ice water machine, cooling tower, power generator, air compressor and conduits.
Download Catalogue

A part of testing process is shown above¡C

All information are shown here as reference only¡Ado any modificiation for this model will not be instantly updated here¡Aif any needs¡Aplease directly contact with us¡C


When properly installed and adjusted, the YS-AG Series will restrain the motion of piping and dutwork during seismic event and not break away from their supports¡C

It is essential to install YS-AG Model seismic restraint isolators,especially installing equipments in seismic areas, as earthquake damage to inadequately restrained HVAC equipment as well as piping/ducts can be extensive. Large cost are incurred to replace damage to inadequately restrained equipment¡C The cost to restrain the equipment properly is highly small compared to the possible damage that might occur¡C

Proper utilization of restraint systems can effectively reduce the threat to life and minimize long-term costs because of equipment damage and associatd loss of service¡C



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