Isolation Valve (Hydrant/Air)

Isolation Valve (Hydrant/Air)

Our range of isolation valves provide isolation of hydrants and air valves in applications that require safe and easy maintenance.

Suitable for above and below ground potable, non potable and wastewater applications.

  • Accredited to NZS4522, AS/NZS4020 and AS/NZS4158.

  • Thermally bonded polymeric coating for long life corrosion protection.

  • Outlet flange options suitable for DN80 or DN100.

  • Inlet flange universally slotted to DN80/100.

  • PN16 & PN35 options available.


With a high strength and impact resistant ductile iron body, our range of valves are designed to be versatile within a wide range of applications.

Properties, dimensions and standards

  • Size Range: DN80-DN100
  • Allowable Operating Pressure: 1600kPa & 3500 kPa
  • Maximum Temperature: Valve designed for use up to 70 C
  • For AS 4020 compliance, max temp = 40 C
  • Connections: Flange AS4087 Fig B5 (PN16) & Fig B6 (PN35)
  • Certifications: NZS4522, AS/NZS4020 and AS/NZS4158
    WSAA Appraisal PA18/17

PN16 – AS4087 Fig. B5


Flanges to AS4087 Fig B5 PN16

PN35 – AS4087 Fig. B6


Flanges to AS4087 Fig B6 PN35

All dimensions are quoted in millimetres. All weights are approximate.

Spring hydrants, air valves and spindle extensions available for all valves.