Key features:

• Orientation: Installed vertically, pointing towards the ceiling.  
• Water discharge: Water is directed upwards and then deflected downward by the sprinkler head's deflector, creating a wide spray pattern.  
• Application: Commonly used in areas with obstructions, such as pipes, ducts, or machinery, where pendent sprinklers might be hindered.  
• Design: Similar to pendent sprinklers in terms of heat-sensitive element and activation mechanism.

Advantages:

• Effective in areas with obstructions.  
• Can be used in dry pipe systems without water trapping issues.  
• Offers wide water distribution