Limit Devices & Friction Adjusters

Caldwell offers a wide variety of Limit Devices & Friction Adjusters with solutions for all applications: projection or casement, Euro groove or surface mount, non-releasable, releasable or Patented keyed releasable, with in hinge options.

Product Features
  • Universal Limit Device Provides 4” Limiting With One Size Device And Standardized Mounting
  • Patented Keyed Bracket For Easy Release Via Security Hex Key Allows Access For Cleaning Or Maintenance Of Vents
  • Devices Provide Positive Limiting of the Vent Opening
  • Multiple Position Adjustable Stop
  • Provides Solutions to Meet Limited Window Opening Codes
  • Provides Additional Friction for Vent Control
  • Wide Variety of Arm and Track Sizes Available
  • Optional Cost Effective In Hinge Limit Requires No Drilling In the Stainless Steel Track


Surface Mount or Euro Groove


See Outline Drawing for Sizes

Shims are available to increase thickness.

Customer Design and Engineering Support Available.

Contact Caldwell for Application Dependent Questions.

Universal Limit Device Mounting Instructions

Keyed Bracket Instructions

Keyed Limit Devices Mounting Instructions

Typical Friction Adjuster/Limit Device Mounting Instructions

In Hinge Limit Device Mounting Instructions

20J0001 Universal Limit Device Surface Outline Drawing

20J0023 Universal Limit Device Euro Groove Outline Drawing

177 Friction Adjuster Outline Drawing

211 In Hinge Limit Device Outline Drawing

419 Keyed Limit Device Outline Drawing

591 In Hinge Limit Device Outline Drawing

876 Keyed Limit Device for Euro Groove Outline Drawing

20J0074 Narrow Frame Euro Groove Limit Device Outline Drawing

1292 Friction Adjuster Outline Drawing

1312 Friction Adjuster Outline Drawing

1318 Friction Adjuster Outline Drawing

1471 Friction Adjuster Outline Drawing

1614 Friction Adjuster Outline Drawing

1672 Friction Adjuster Outline Drawing