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All Categories > Industrial Diaphragm Valves > Metal Diaphragm Valves > 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


687

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Sectional Drawing687-Sectional-drawing

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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

Item #

Nominal Size

Connection

Diaphragm Material

Control Function

Actuator Size

687015D3137-111 1/2" Threaded NPT Hypalon Diaphragm Pneumatic Normally Closed 1
687015D3137-121 1/2" Threaded NPT Hypalon Diaphragm Pneumatic Normally Open 1
687015D3137-131 1/2" Threaded NPT Hypalon Diaphragm Pneumatic Air to Air 1
687015D31371411 1/2" Threaded NPT EPDM Diaphragm Pneumatic Normally Closed 1
687015D31371421 1/2" Threaded NPT EPDM Diaphragm Pneumatic Normally Open 1
687015D31371431 1/2" Threaded NPT EPDM Diaphragm Pneumatic Air to Air 1
687015D3137-211 1/2" Threaded NPT Buna-N Diaphragm Pneumatic Normally Closed 1
687015D3137-221 1/2" Threaded NPT Buna-N Diaphragm Pneumatic Normally Open 1
687015D3137-231 1/2" Threaded NPT Buna-N Diaphragm Pneumatic Air to Air 1
687015D31372511 1/2" Threaded NPT Natural Rubber Silica Free Diaphragm Pneumatic Normally Closed 1
Showing 10 of 1001  |  View All 1001 Standard Items


 DOWNLOADS 

 width= 687 Data sheet
(PDF)

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