WB Horizontal Thrust Restraints It is not unusual to encounter problems where the horizontal combined air thrust exceeds 10% of the equipment weight. If the spring columns alone resist a 10% force, they will lean over about 12% of the rated deflection. This is the recommended maximum. When the thrust is higher, the best solution…
Hanger – Obsolete 1965 WHS Hanger The W30 hanger is satisfactory for duct isolation since ducts vibrate at lower frequencies than piping and there is no high frequency component requiring a full LDS Rubber element. This simple spring hanger retains the 30° capability, but the housing is manufactured so that it may be attached to…
Hanger – Obsolete 1965 DNHS Hanger We have worked with combination spring and neoprene hangers for over 45 years. This serial arrangement of materials is extremely effective. Our older designs, and many of the standard designs of our competitors had the common fault of not allowing enough angular hanger rod misalignment. The rod could strike…
Mountings – SLR-MT Air Spring Mount SLR-MT restrained mountings contain MT air springs in place of the SLF springs in the SLR mountings. The steel housing around the MT air spring serves exactly the same purpose as the SLR housing in explanation D. SLR-MT are recommended in lieu of SLR in highly critical situations as…
Mountings – SLR Spring Mountings SLR and SLRSO restrained mountings limit upward travel when weight is temporarily removed and provide safety stops for windy rooftop applications. All mountings are shipped with removable steel spacers between the sides and the top plate of the mounting as shown in the illustration. When the spacer is in place,…
