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GEMÜ is a German company founded since 1964, and a leading manufacturer of valves, measurement and control systems.

Today, Gemu is the world market leader of valves for sterile applications in the pharmaceutical and biotechnology industries.

Gemu offers the following range of products:
  • Aseptic Diaphragm Valves
  • Plastic Diaphragm Valves
  • Metal Diaphragm Valves
  • Butterfly Valves
  • Globe Valves
  • Control Valves
  • Solenoid Valves
  • Pilot Valves
  • Ball Valves
  • Check Valves
  • High Purity Products  (Valves, Flow, Pressure, Tubings & Fittings)
  • Positioners & Controllers
  • Electrical Position Indicators
  • Field Bus Systems
  • Actuators
  • Flowmeters (Rotameters)



Butterfly Valve, Metal

428


Butterfly Valve, Metal



Details

Construction
The motorized GEMU 428 2/2 way butterfly valve has a low maintenance electrical actuator with a powerful reversible DC motor. The secondary gear in the motor, consisting of a threaded spindle with swivel lever, provides the rotation through 90°. GEMU 428 has an optical position indicator and a manual override.

Features
  • Suitable for inert, corrosive, liquid and gaseous media
  • Insensitive to media with high viscosities
  • Quick on/off operation
  • Electrical position indication by 2 potential-free, adjustable limit switches
  • Opening and closing behaviour is independent of the operating pressure
Advantages
  • Adjustable end positions by means of micro-switches
  • Emergency power supply with 24V DC types through the emergency power supply module type 1570
  • Various seal materials are available to suit the medium
  • Low maintenance

Specifications

Parameters

 
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