W30 – 1” DEF. Swing Spring Hangers Ceiling Hangers shall be fail safe and include a steel frame containing a nominal 1” deflection steel spring seated in an AASHTO Bridge Bearing Quality Low Dynamic Stiffness Rubber Cup with a rubber bushing extending through the box to prevent metal to metal contact between the steel suspension…
RW30 – 1” DEF. Swing Spring Hangers Hangers shall be as described in 10, but they shall be supplied with a combination rubber and steel rebound washer as the seismic up stop for suspended piping, ductwork, equipment and electrical cable trays. Rubber thickness shall be a minimum of 1/4” (6mm). Submittals shall include a drawing…
PC30S – 1” DEF. Swing Spring Hangers Hangers shall consist of rigid steel frame containing a minimum 11/4”(32mm) thick LDS rubber element at the top and a steel spring with general characteristics as in specification B seated in a steel washer reinforced LDS rubber cup on the bottom. The LDS rubber element and the cup…
PC30 – 1” DEF. Swing Spring Hangers Hangers shall consist of rigid steel frame containing a minimum 11/4”(32mm) thick LDS rubber element at the top and a steel spring with general characteristics as in specification B seated in a steel washer reinforced LDS rubber cup on the bottom. The LDS rubber element and the cup…
30 – 1” DEF. Swing Spring Hangers Hangers shall consist of rigid steel frame containing a minimum 11/4”(32mm) thick LDS rubber element at the top and a steel spring with general characteristics as in specification B seated in a steel washer reinforced LDS rubber cup on the bottom. The LDS rubber element and the cup…