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Construction

The GEMU 611 and 671 manually operated 2/2-way metal diaphragm valves have a low maintenance plastic bonnet and an integral optical position indicator as standard.

Features
  • Suitable for inert and corrosive liquid and gaseous media
  • Chemical resistance of bonnet
  • Insensitive to particulate media
  • Valve body and diaphragm available in various materials and designs
  • Compact design (ideal when space is at a premium)
Advantages
  • Hermetic separation between medium and bonnet
  • Optional flow direction, will seal in either flow direction up to full operating pressure
  • Optional mounting position
  • Optional accessories for 671:
    • Electrical remote indication that the valve is in the open position
    • Lockable handwheel clamp
Unit of Measure

Specifications

Type Type 671 manual, Polymer bonnet & h/w, Glass-filled PP, Visual Indicator
Nominal Size 1 1/2" 1" 1/2" 2 1/2" 2" 3" 3/4" 4"
Connection 125# Flat Face Flange 150# Flat Face Flange 150# Raised Face Flange Serated 150# Raised Face Flange Smooth Flanged ANSI class 125/150 RF, length EN 558-2, Series 1 ISO 5752, Basic Series 1 Schedule 40 Socket Weld Threaded NPT
Valve Body Material 316 Stainless Steel with PFA Lined Body Cast Iron - ASTM A-126 Class B Body Ductile Iron with Butyl Lined Body Ductile Iron with Hard Rubber Lined Body Ductile Iron with Hypalon Lined Body Ductile Iron with Neoprene Lined Body Ductile Iron with PFA Lined Body Ductile Iron with Polypropylene Lined Body Ductile Iron with PVDF Lined Body Ductile Iron with Silica Free Soft Rubber Lined Body Ductile Iron with Tefzel Lined Body Investment Cast 316 Stainless Steel Body
Diaphragm Material Buna-N Diaphragm Butyl Diaphragm EPDM Diaphragm Hypalon Diaphragm Natural Rubber Silica Free Diaphragm Neoprene Diaphragm PTFE/EPDM Diaphragm PTFE/VitonDiaphragm TFM/EPDM Diaphragm TFM/VitonDiaphragm Viton Diaphragm
Control Function Manually Operated,
Actuator Size 1215 L
Max. Ambient Temperature 80 ºC
Max. Permissible Operating Temperature 60 ºC

Working Medium

Working Medium Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and chemical properties of the body and diaphragm material.

View items

Item #

Nominal Size

Connection

Diaphragm Material

Control Function

Actuator Size

671015D3137-10- N/A 1/2" N/A Threaded NPT N/A Hypalon Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137140- N/A 1/2" N/A Threaded NPT N/A EPDM Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137-20- N/A 1/2" N/A Threaded NPT N/A Buna-N Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137250- N/A 1/2" N/A Threaded NPT N/A Natural Rubber Silica Free Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137-40- N/A 1/2" N/A Threaded NPT N/A Viton Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137-40- N/A 1/2" N/A Threaded NPT N/A Viton Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137-50- N/A 1/2" N/A Threaded NPT N/A PTFE/EPDM Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137-60- N/A 1/2" N/A Threaded NPT N/A Butyl Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137-80- N/A 1/2" N/A Threaded NPT N/A Neoprene Diaphragm N/A Manually Operated, N/A 1215 L
671015D3137V50- N/A 1/2" N/A Threaded NPT N/A PTFE/VitonDiaphragm N/A Manually Operated, N/A 1215 L
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