GEMU 620 Industrial Diaphragm Valve, Metal on Gemu Valves Gemu Valves - GEMU 620 Industrial Diaphragm Valve, Metal
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All Categories > Industrial Diaphragm Valves > Metal Diaphragm Valves > GEMU 620 Industrial Diaphragm Valve, Metal 

GEMU 620 Industrial Diaphragm Valve, Metal
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Construction

The GEMU 620 pneumatically operated 2/2-way diaphragm valve has a low maintenance membrane actuator which can be controlled by inert gaseous media.

Features
  • Suitable for inert and corrosive liquid and gaseous media
  • Insensitive to particulate media
  • Valve body and diaphragm available in various materials and designs
Advantages
  • Optional flow direction, will seal in either flow direction up to full operating pressure
  • Good flow capability
  • Accessories:
    • Stroke limiter
    • Optical position indicator
    • Manual override
    • Pilot valve with manual operation
    • Electrical position indicator
    • Pneumatic or electro-pneumatic positioners


GEMU 620 Diaphragm Valve, Metal

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Sectional Drawing620-Sectional-drawing

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Specifications · Working Medium · Control Medium

Specifications

Type

Type 620 manual, Cast Iron Actuator with SS Distance Piece

Nominal Size

10"
12"
2 1/2"
3"
4"
6"
8"

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

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
Viton Diaphragm

Control Function

Pneumatic Air to Air
Pneumatic Normally Closed
Pneumatic Normally Open

Actuator Size

3A2
3A3
3AD
3AF
4A1
4A2
4AD
4AF
5A2
7A3
7A4
7A5
7AD
7AF

Max. Ambient 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.

Max. Perm. Temperature of Working Medium

150 ºC

Control Medium

Control Medium

Inert Gases

Max. Perm. Temperature of Control Medium

40 ºC


 DOWNLOADS 

width= 620 Data sheet
(PDF)

width= Stroke Limiters, Seal Adjusters, Optical Position Indicators, and Manual Overrides
(PDF)
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