Storage sprinkler ESFR-25

drywater

Overview
The ESFR-25 dry pendent sprinkler is engineered for ceiling-only protection in cold storage environments. It provides an effective alternative to in-rack systems for solid piled, palletized and rack storage where freezing conditions are present. The sprinkler operates with water supplied from a wet pipe system located outside the refrigerated area to ensure reliable discharge performance.

Key specifications

• Orientation: Pendent
• K-Factor: 25.2 (K25.2 / 363)
• Temperature ratings: Ordinary 165°F (74°C) and Intermediate 212°F (100°C)
• Maximum ceiling-only protected height: up to 50 ft (15.2 m)
• Low-temperature capability: protection down to -60°F (-51°C)

Features

• ESFR K25.2 (363) dry pendent configuration for cold storage applications
• FM Approved with TY9229 listing reference
• Fast response (early suppression, fast response) design
• Connection options: threaded 1 1/4” NPT, ISO 7-1 and grooved 2”
• Available in three barrel lengths for installation flexibility
• Insulating seal assembly kits available to minimize ice buildup

Benefits

• Ceiling-only protection eliminates the need for in-rack sprinklers for many cooler and freezer layouts
• Reliable operation in extreme low temperatures (down to -60°F / -51°C)
• High K-factor (25.2) suitable for ESFR early suppression strategies
• Multiple connection and barrel length options simplify retrofits and new installations

Technical resources

• TFP329 Technical Data Sheet — product technical information and listing details
• ESFR-25 product flyer and Revit file available for design integration

Technical specifications

• Model: ESFR-25 (dry pendent configuration)
• Orientation: Pendent
• K-Factor: 25.2 (K25.2 / 363)
• Temperature ratings: Ordinary 165°F (74°C) and Intermediate 212°F (100°C)
• Response type: Fast (early suppression, fast response)
• Approvals/listings: FM Approved; TY9229 listing referenced
• Connection options: Threaded 1 1/4” NPT, ISO 7-1; Grooved 2”
• Max protected ceiling-only height: up to 50 ft (15.2 m)
• Low-temperature capability: protection down to -60°F (-51°C)
• Installation options: three barrel lengths for flexibility
• Accessories: insulating seal assembly kits to reduce ice buildup