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Ductile Iron Pipes - Bolted Restrained Joints

Features

  • Can withstand very high pressure
  • Needs specially manufactured pipes with a hood on the socket and weld bead on spigot
  • Needs special accessories such as Gland, Split Retainer Ring and Nuts/ Hook Bolts
  • Normal push-on gasket is to be used for sealing
  • The hook bolts with the support from socket hood, hold the Gland and the socket together. The welding bead on the other pipe's spigot cannot pass through Retainer Ring housed in the Gland, this ensures restraining of the axial movement between the two pipes.
  • Easy to assemble and disassemble when required.
DN (mm) PFA (bar) PMA (bar) PEA (bar) Deflection Angle  (Degree)
80 64 77 80 5
100 64 77 80 5
125 64 77 80 5
150 55 66 71 5
200 44 53 58 4
250 39 47 52 4
300 37 44 49 4
350 32 38 43 3
400 30 36 41 3
450 30 36 41 3
500 30 36 41 3
600 27 32 37 3
700 25 30 35 2
800 16 19 24 2
900 16 19 24 2
1000 16 19 24 2

# For higher PFA from DN 800 – DN 1000, contact us.