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.

 

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.

Performance Features at a glance

Construction

  • EPDM
    for water, drinking water and water-glycol mixtures with DVGW registration for drinking water, -10 to +130°C
  • NBR
    for water, oily media and compressed air with DVGW registration for gas, -10 to +80°C
  • FPM 
    for fluids and gases, 0 to +150°C (not for hot water)
  • EPDM
    with ÖVGW registration for drinking water, PN 10, -10 to +130°C
  • NBR
    with ÖVGW registration for gas up to DN 300, PN 10, -10 to +80°C

Body material

  • Nodular cast iron 5.3106 (EN-JS1030)
  • Optionally 5.3103 (EN-JS1049)

Pressure ratings

  • ZESA® PN 6/10/16
  • GESA® PN 10/16

Nominal diameters

  • DN 20 to DN 50

Connections

  • Face-to-face according to DIN EN 558 FTF-20
  • Flange connection according to DIN EN 1092-1/-2
  • Top flange according to DIN EN ISO 5211