SLR – 4″ DEF, – 100 SERIES
Restrained spring mountings shall have an SLF mounting as described in SLF Specification, within a rigid housing that includes vertical limit stops to prevent spring extension when weight is removed. The housing shall serve as blocking during erection. Installed and operating heights are equal. Restraining Bolts shall have a neoprene bushing between the bolt and the housing. A clearance of 1/4” (6mm) shall be maintained around restraining bolts and the bushing so as not to interfere with the spring action. Limit stops shall be out of contact during normal operation. Since housings will be bolted or welded in position there must be an internal isolation pad. Housing shall be designed to resist all seismic forces. Mountings shall have an OPA preapproval from OSHPD in the state of California certifying the maximum certified horizontal and vertical load ratings. Mountings shall be type SLR or SLRS as manufactured by Mason Industries, Inc.
| SIZE | RATED CAPACITY (lbs) | RATED DEFLATION (in) | MOUNT CONSTANT (lbs/in) |
| 150 | 240 lbs | 4.38 in | 55 |
| 151 | 330 lbs | 4.38 in | 75 |
| 152 | 420 lbs | 4.38 in | 95 |
| 153 | 530 lbs | 4.38 in | 120 |
| 154 | 680 lbs | 4.38 in | 155 |
| 155 | 880 lbs | 4.38 in | 200 |
| 156 | 1120 lbs | 4.38 in | 255 |
| 157 | 1420 lbs | 4.38 in | 325 |
| 158 | 1840 lbs | 4.38 in | 420 |
| 159 | 2370 lbs | 4.38 in | 540 |
| 160 | 3000 lbs | 4.38 in | 695 |
| 161 | 3900 lbs | 4.38 in | 895 |
| 162 | 5100 lbs | 4.38 in | 1155 |
| 163 | 6500 lbs | 4.38 in | 1485 |
| 164 | 8400 lbs | 4.38 in | 1910 |
| 165 | 10800 lbs | 4.38 in | 2455 |
| 166 | 13800 lbs | 4.38 in | 3160 |
| 167 | 17800 lbs | 4.38 in | 4065 |
| 168 | 22900 lbs | 4.38 in | 5235 |
| 169 | 30000 lbs | 4.38 in | 6730 |
