Question: what are the different types of fire sprinkler heads?
Answer: Pendent Fire Sprinkler Head. The pendent fire sprinkler head is the most common type and it's mainly used in offices, hotels and factories. ... 
Upright Fire Sprinkler Head. An upright fire sprinkler points upwards towards the ceiling. ... 
Sidewall Fire Sprinkler Head. ... 
Concealed Fire Sprinkler Head.