PT&P manufactured these F-type variable spring supports for a facility in Canada. The springs are fabricated from A36 carbon steel with a hot-dipped galvanized finish. The variables installed heights range from 11" to 15" and are designed for operating conditions up to 4,000 lbs. Bronzphite® is best suited for high loads, low-velocity applications and where the use of oil or grease is undesirable or not feasible. The bronze plate acts as the bearing surface, withstanding heavy loads, while the graphite inserts provide a solid, oil-free lubricant. Type F base springs are not typically designed for lateral loads, so slide plates such as Bronzphite® are employed to reduce the stress that could be imposed on the spring and pipeline by reducing the sliding friction between the spring’s load flange and the pipe shoe, trunnion or supporting steel. Also added to these springs are Internally Guided Load Columns which provide additional support for lateral loads. As with all of our variable supports, these were quality-checked with a 100% spring coil deflection test and a load cell calibration to set the assembly at the prescribed installed load.
PT&P REF. ORIGINAL POST 05232016
