Double revolving branch

  • This consists of a large gun metal casting made in two parts. 
  • The upper part comprises a collecting breeching to the outlet of which is connected casting which revolves on ball bearing and carries four equidistant outlet. 
  • Two of these are in the form of branches diametrically opposed and fitted with standard nozzles. 
  • The other two also located opposite to each other are inclined to the diameter. 
  • It is rotated by the back pressure of water passing through two outlets inclined to the casting. 
  • This also is used to fight fires in ships holds / basements.