Through Bore Hydrant

  • Unlike current hydrants which have an ‘S’ shaped water path, TBH has a straight vertical path which provides direct full bore access (80mm*) to the main enabling a wide range of inspection, repair and maintenance activities
  • Enables network mapping / monitoring by the Utility, improving supply efficiencies
  • Offers industry leading flowrates at low operating pressures,particularly beneficial to the Emergency Fire and RescueServices and ultimately public safety
  • Enables major reductions in supply interruptions, excavation and highway disruption, considerably decreasing the overall carbon footprint
  • Similar in appearance and operation to existing type 2 hydrants, minimising the need for operator training
  • Lower operating torques that minimize potential for operator injury

Applications

Water Industrial

1 Operating Stem/Pinion Cap

  • Ductile iron for added strength
  • Securely attached to stem/pinion
  • Colored red for ease of identification

Viking Johnson Thorough Bore Hydrant Stem

2 Hydrant Body

  • Ductile iron for added strength
  • Offers full unrestricted direct access to the main (80mm)
  • Inlet flange drilled to suit PN10/16 & BS Table D/E

Viking Johnson Thorough Bore Hydrant Body

3 Nickel Seat

Welded nickel machined seat for improved corrosion and erosion resistance

  • Profiled for low torque and extended valve life
  • No potential damage to Epoxy seat experienced in conventional hydrants

Viking Johnson Thorough Bore Hydrant Nickel Seat

4 Outlet Fasteners

Stainless steel bolts and washers offer enhanced corrosion resistance

Viking Johnson Thorough Bore Hydrant Fasteners

5 Gearbox

  • Ductile iron for added strength
  • Fully sealed forsubmerged duty
  • Isolated from the water flow
Viking Johnson Thorough Bore Hydrant Gearbox

6 Stem/Pinion

  • Non-Rising stainless steel
  • Anti-Clockwise to open
  • 1.75 turns to commence flow
  • 7.5 turns to fully open

Viking Johnson Thorough Bore Hydrant Pinion

Select your language

  • Flow Tbh VJ Bro 1

    Through Bore Hydrant Brochure

    For Network Assessment & Improved Asset Management

    Download

Data Sheets