Below-level dosing valve Type 508

2/2-way- 1- or 2-step dosing valve "coarse" or "coarse-fine"

  • DN 8 - 80 mm
  • Control function: normally closed
  • Made of stainless steel
Mounting: vertical position
Flow direction: fixed
Operating medium: observe the constancy of material
Operating temperature: max. 80° C (higher on request)
Surrounding temperature: max. 60° C
Control medium: Compressed air (filtered, oiled recommend)
Switching actuations: 1.800/h (viscosity dependent)
Heating jacket connection: G 1/2"
Heating medium: all neutral media
Heating pressure: max. 5 bar
Heating temperature: max. 150° C
Control connection: coarse 'Z' = G 1/4 Zoll
fine 'Y' = G 1/4 Zoll
DN (mm) 50 70 90
coarse NI 0,06 0,11 0,35
fine NI 0,02 - 0,06 0,05 - 0,11 0,08 - 0,19
Nominal
diameter
(mm)
Connection Operating
pressure
(bar)
Control
pressure
(bar)
Kv Value
(m³/Std.)
Actuator
(mm)
Tube
(Ø in mm)
8 G 1 1/4" 0 - 6 5 - 10 2,0 50 21,3
15 G 1 1/4" 0 - 6 5 - 10 4,4 50 28,0
20 G 1 1/4" 0 - 6 5 - 10 7,8 50 38,0
25 G 1 1/4" 0 - 6 5 - 10 12,5 50 42,4
32 G 1 1/4" 0 - 6 5 - 10 21,4 50 55,0
40 G 2" 0 - 6 5 - 10 31,0 70 64,0
50 G 2" 0 - 6 5 - 10 48,8 70 76,1
65 G 2 1/2" 0 - 4 5 - 10 58,0 70 108,0
80 G 3" 0 - 2 5 - 10 89,0 90 133,0
  • actuator removable without tools
  • several kinds of connection
  • several kinds of material
  • good kv-values
  • maintenance-free
  • service-friendly
  • high reliability of operation
  • available with heating jacket
  • continuous adjustment from the exterior
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