How Do Gas Lift Chairs Work?

How Gas Springs Work

• Pushing the down lever of the chair forces the piston into the cylinder, compressing the gas and lowering the seat. Pushing the up lever pulls out the piston, allowing the compressed nitrogen to expand, thus raising the seat.

Advantages

• The gas spring is designed to lift a particular load at a constant speed. In addition, the oil in the spring smooths its movement. Gas springs are simple, durable, reliable and do not require maintenance. They are also smaller than metal springs.

Additional Facts

• Gas springs come in different designs and configurations. Vertically mounted gas springs work more efficiently and are less likely to collapse at full extension. Tight seals around the piston prevent the nitrogen and oil from escaping.