PC30N

PC30N Hangers shall be as described in 30N spec, but they shall be pre-compressed and locked at the rated deflection by means of a resilient seismic up stop to keep the piping or equipment at a fixed elevation during installation. The hangers shall be designed with a release mechanism to free the spring after the…

30N

30N – Hangers Hangers shall consist of rigid steel frame containing a minimum 1-1/4” (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 shall have molded…

W30

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

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

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

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

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…

WJ3

Wedge Jacks 3 piece, through hole Of all the leveling devices, Wedge Jacks provide the most rigid support after adjustment. All jacks have mating parts with spherical seats that allow automatic adjustment for up to 7° of transverse compensation for uneven floors. The wedges move readily in response to turning the adjustment bolts. Jacks are furnished…

WJ2

Wedge Jacks 2 piece, no bolting Of all the leveling devices, Wedge Jacks provide the most rigid support after adjustment. All jacks have mating parts with spherical seats that allow automatic adjustment for up to 7° of transverse compensation for uneven floors. The wedges move readily in response to turning the adjustment bolts. Jacks are furnished…

HG

Bolt Isolation Washer-Bushing Up until the 1950’s most rubber mountings were designed to take the load in shear. Mountings were circular or sold in long strips, so the capacity could be controlled by size and durometer, or durometer and the cut off length. Shear loading curves are straight line similar to steel springs. The deflection can be used directly in the frequency equation after dynamic stiffness…