TS500NV No Hold Open. The Geze TS500 NV floor spring is a compact floor spring which has been designed for smaller swing and double action doors with a maximum leaf width of 1100mm and weight of 150kg. With an adjustable closing force of sizes 1 to 4, this door closer also features fully adjustable end stop and closing speed, all adjustments can be made easily from above.. For use on doors with a maximum leaf width of 1100mm. Adjustable closing force sizes 1 - 4. Adjustable end stop and closing speed. Can be used with both swing and double action doors