Glynn-Johnson 704S -US26D Surface Overhead Door Stop

70 Series Heavy-Duty

Glynn-Johnson 70 and 79 series holders and stops offer rugged

durability and ease of installation. The surface-applied door and

jamb brackets provide reliable door control, yet require minimal

door and frame preparation.

Glynn-Johnson 70 series Hold-Open and Stop-Only models

provide heavy-duty door protection. The 79 series models

incorporate the basic characteristics of the 70 series, but can

protect extremely heavy or large doors subject to violent use

or abusive conditions (i.e., vault doors, cell doors, oversized

plant entry doors).

70H

and 79H Series Hold-Open Models

(Suffix H) Hold-Open models in both series provide a selective

Hold-Open function with easy-to-adjust tension. A simple 90º

rotation of the roller mechanism disables the Hold-Open function,

allowing the unit to serve as a shock-absorbing stop. The Hold-

Open function provides a convenient method of holding the door

open at a predetermined position for short or long periods of time,

permitting an unobstructed traffic flow through the opening.

Both series provide a durable Hold-Open mechanism that can be

turned off, allowing the unit to function as a shock-absorbing stop.

The Hold-Open tension is simply adjusted incrementally for

increased or decreased holding power by turning the nut at the

end of the bar. While both series are designed for demanding

applications, the 79 Series is recommended for extremely heavy

or wide doors subject to violent or abusive conditions