The first soft-sealing butterfly valve with 3 optimised disc designs means less turbulent flow.

DN 20 TO DN 50 – SINGLE SHAFT DESIGN

  • Lower friction and pressure losses for optimised Kvs values.
  • Optimised disc design means less turbulence and a shorter outlet section – just 2 x DN – downstream of the valve.
  • Less turbulence also has the advantage of less noise and vibration in the system.
  • Less dirt deposits.

 

3D
3D

DN 65 TO DN 200 – INNOVATIVE CURVED DESIGN

  • Lower friction and pressure losses for optimised Kvs values.
  • Optimised disc design means less turbulence and a shorter outlet section – just 2 x DN – downstream of the valve.
  • Less turbulence also has the advantage of less noise and vibration in the system.
  • Less dirt deposits.
  • The curved design is protected by a utility model and as such is unique worldwide.
  • The curved design results in increased stiffness and adds stability to the entire shaft-and-disc structure.

DN 250 TO DN 600 – INNOVATIVE HEXO HONEYCOMB DISC DESIGN

  • The HEXO honeycomb disc design is protected by a utility model and as such is unique worldwide.
  • Lower friction and pressure losses for optimised Kvs values.
  • Optimised disc contour means less turbulence and a shorter outlet section – just 2 x DN – downstream of the valve.
  • Less turbulence also has the advantage of less noise and vibration in the system.
  • Less dirt deposits.
  • Weight advantage of the new disc design simplifies ­handling in the system.
  • The HEXO design results in increased stiffness and adds stability to the entire shaft-and-disc structure.
3D

For significant optimisation and a flow with less turbulence and vibration.

Single Shaft Design

DN 20-50

Curved Design

DN 65-200

HEXO Honeycomb Design

DN 250-600

Standard soft-seated butterfly valve

ZESA®/GESA® NEXTG3N with HEXO Honeycomb disc design

 

Polygonal Shaft-Disc Connection

INNOVATIVE & FORM-FITTING

The connection between the shaft and the disc is designed as a form-fitting polygon for optimum torque transmission. The disc and liner are simple to replace because the polygon is self-centring and no additional fixing pin is required. A flat surface ensures the discharging of air when the shaft is inserted into the disc, for even easier installation.

BENEFITS FOR YOU

  • New polygonal connection guarantees maximum reliability.
  • Designed as a form-fitting polygon for optimum torque transmission.
  • Design rules out any notching effect.
  • Easy servicing because the liner and disc are simple to replace.

 

ZESA®/GESA® NEXTG3N Applications

  • Air conditioning and cold water applications, e.g. in data centres
  • Heating systems
  • Drinking water systems
  • Compressed air systems
  • Swimming pool systems
  • Solar thermal power plants
  • Biogas plants
  • Seawater applications
  • Various industrial applications

Your Benefits with ZESA®/GESA® NEXTG3N

OPTIMISED FLOW

Due to the optimised disc design, leading to a shorter outlet section.

OPTIMISED SAFETY

Due to the polygon ­connection, stiffer disc and blow-out protection.

OPTIMISED EFFICIENCY

Due to the optimised Kvs values and ease of servicing, enabling more compact ­systems. Can be fully insulated.