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.
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.
