Smoke Vent Units - Skylight

Shrink-Out Smoke Vents

Standard Shrink-Out Smoke Vents (PSO/PSOS)
Wasco’s Pyrodome® Shrink-Out Smoke Vents are gravity operated acrylic double domes designed to automatically shrink and fall out in the event of a fire. These units are generally used when buildings have no sprinkler system or they employ a standard sprinkler system designed to operate at 165 degrees.

ESFR Rated Shrink-Out Smoke Vents (PSOFR/PSOSFR)
Wasco’s “FR” Pyrodome® Shrink-Out Smoke Vents are gravity operated acrylic double domes designed to automatically shrink and fall out in the event of a fire. These units are equipped with a fusible link activated release mechanism which will ensure the unit does not activate prior to reaching the fusible link temperature. These units are designed for use with an ESFR (Early Suppression, Fast Response) sprinkler system.

Fusible Link for Controlled Venting (PSO-FR, PSOS-FR):

  • Option for Our PSO Unit
  • Incorporates a Fusible Link for Specific Control of Venting
  • Allows Unit to Be Used with ESFR (Early Suppression Fast Response) Sprinkler Systems
  • UL Tested and Approved
  • Less Expensive Alternative to Mechanical Venting
  • Available with 360° or 500° UL listed fusible links

Safety screens are available.

Clear selection
  • Standard Shrink-Out Smoke Vent
  • ESFR Rated Shrink-Out Smoke Vent
  • Safety Considerations

Standard Sizes

Model Curb Mount (PSOS)
O.D. of Curb
Deck Mount* (PSO)
Rough Opening
PSOS/PSO–5555 51″ x 51″ 48″ x 48″
PSOS/PSO–5566 51″ x 63″ 48″ x 60″
PSOS/PSO–5578 51″ x 75″ 48″ x 72″
PSOS/PSO–5596 51″ x 93″ 48″ x 90″
PSOS/PSO–55102 51″ x 99″ 48″ x 96″
PSOS/PSO–6678 63″ x 75″ 60″ X 72″
PSOS/PSO–6696 63″ x 93″ 60″ X 90″
PSOS/PSO–66102 63″ x 99″ 60″ X 96″

 *Available in 4″, 9″ or 12″ high curbs.

Glazing Options

Outer:

  • Clear
  • #2412 Bronze

Inner:

  • Clear
  • #2447 White

Finish Colors

  • Mill (Standard Finish)
  • Anodized – Clear, Bronze (Dark, Medium or Light)
  • Kynar (Various colors)
  • Baked Enamel (Various colors)

Standard Sizes

Model Curb Mount (PSOSFR)
O.D. of Curb
Deck Mount* (PSOFR)
Rough Opening
PSOSFR/PSOFR–5555 51″ x 51″ 48″ x 48″
PSOSFR/PSOFR–5566 51″ x 63″ 48″ x 60″
PSOSFR/PSOFR–5578 51″ x 75″ 48″ x 72″
PSOSFR/PSOFR–5596 51″ x 93″ 48″ x 90″
PSOSFR/PSOFR–55102 51″ x 99″ 48″ x 96″
PSOSFR/PSOFR–6678 63″ x 75″ 60″ X 72″
PSOSFR/PSOFR–6696 63″ x 93″ 60″ X 90″
PSOSFR/PSOFR–66102 63″ x 99″ 60″ X 96″

 *Available in 4″, 9″ or 12″ high curbs.

Glazing Options

Outer:

  • Clear
  • #2412 Bronze

Inner:

  • Clear
  • #2447 White

Finish Colors

  • Mill (Standard Finish)
  • Anodized – Clear, Bronze (Dark, Medium or Light)
  • Kynar (Various colors)
  • Baked Enamel (Various colors)

Safety ConsiderationsWasco skylights are designed to withstand normal elements of the weather. They are not designed to withstand human impact or falling objects. These skylights should not be walked upon under any circumstances. The owner or designer should restrict access only to authorized personnel who have been adequately cautioned as to the location of the skylights and informed of the warning above, or said owner should provide protective guard rails or screens around the skylights.