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Diaphragm Valve Type 987
 

manually operated
DN 15 - 350 mm (1/2" - 14")
metal bonnet and handwheel

Attributes

  • maintenance free actuator

  • metal bonnet and handwheel

  • non-rising handwheel with optical indicator

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

Features

Control Function:

 

manually operated

Max. Working Pressure:
 

 

10 bar
DN 65-100 diaphragm PTFE 8 bar

Max. Working Temperature:

 

till 160 °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

 

 

 

 

 

 


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