Diaphragm Valve Type 985 Print E-mail
 manually operated
DN 15 - 250 mm (1/2" - 10")
plastic bonnet and handwheel
 
Attributes
  • Maintenance-free actuator
  • Plastic bonnet and handwheel
  • Non-rising handwheel with optical indicator
  • Flexible diaphragm suspension
  • Encapsulated diaphragm

General
  • Eliminates water hammer
  • Depending on the diaphragm material for all neutral and aggressive, gaseous and liquid media
  • The flow can be in either direction
  • Hermetic sealing
  • The valve is unaffected by contaminated media
  • Cavity free body
  • Without any corrosion
  • High temperature design (HS) for media temperatures till 150°C
  • Stroke limiter and limit switch
  • Sealed hand wheel
  • Detectable or lockable


Features

Control function:   Manually operated  
Max. working pressure:   10 bar
DN 65-100 diaphragm PTFE 8 bar
 
Max. working temperature:
  Standard 80°C dependent on application
HS-design till 150°C depending on application
 
Diaphragm material
and size:

EPDM, PTFE/EPDM or FPM
MA 25 and bigger
 
Valve body material:
  Investment Cast 1.4435/316 L
Cast iron
Modular graphite casting/lined with PFA
Modular graphite casting/lined with PP
Investment cast/lined with PFA
Cast iron/rubber-lined 
 
End connection:
Threaded socket DIN ISO 228 
Different Flanges 
 
       
Additional information:  Technical Data   
       
   Mounting Instructions  
       
   Ordering Key  
       
   Request for CAD-Data