GEMU 687 Industrial Diaphragm Valve, Metal on Gemu Valves
Gemu Valves - GEMU 687 Industrial Diaphragm Valve, Metal
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GEMU 687 Industrial Diaphragm Valve, Metal
GEMU 687 Industrial Diaphragm Valve, Metal
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Construction
The GEMU 687 pneumatically operated 2/2-way diaphragm valve has a low maintenance membrane actuator. Normally Closed, Normally Open and Double Acting control functions are available.
Features
Suitable for inert and corrosive liquid and gaseous media
Chemical resistance of actuator
Stainless steel body with CIP/SIP cleaning and sterilizing capabilities
Insensitive to particulate media
Valve body and diaphragm available in various materials and designs
Surface finishes down to 0.25 µm, electropolished
Advantages
The modular actuator system permits a variety of options to be used such as tank bottom valves, T valves, sampling valves, multi-port valves and tandem welded configurations
Optional flow direction, will seal in either flow direction up to full operating pressure
Optional mounting position
Optional accessories:
Stroke limiter
Optical position indicator
Manual override
Pilot valve with manual override
Electrical position indicator
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Specifications
Type
Type 687 pneumatic, SS / Polymer actuator, SS transition piece for CIP/SIP service, SS Sanitary internals
Nominal Size
1 1/2"
1"
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
Pneumatic Air to Air
Pneumatic Normally Closed
Pneumatic Normally Open
Actuator Size
1
2
3
4
5
Max. Ambient Temperature
60 ºC
Max. Permissible Operating Temperature
40 ºC
DOWNLOADS
687 Data sheet
(PDF)
