Media Air
Chemicals / process liquids
Food / drink
Process gases
Steam
Wastewater / effluent
Water
Valve type Butterfly valves
Construction Stainless steel
Steel
Thermoplastics
Max. pressure (bar) 10
Min. temperature (deg. C) -20
Max. temperature (deg. C) 200
Min. connection size (mm) 40
Max. connection size (mm) 900
 
 
 

GEMÜ 490 is a butterfly valve with a bare shaft designed for use with chemicals, corrosive liquids and high purity water.  The disc and shaft are one piece. The body material is stainless steel, ductile iron or steel. The body liner is PFA or PTFE.

Integral to the corrosion resistance of the valve is its high specification liner seal. The shaft seal system is also designed to prevent dangerous media leaks to atmosphere.

  • Stainless steel or steel disc with PFA or PTFE body liner
  • Nominal sizes from DN40 – DN1000
  • Max. temperature 200°C
  • Min. temperature -20°C
  • PN3/10/16 bar media rated
  • Suited for corrosive liquid and gases
  • Suited for high purity water
  • FDA approved
  • ATEX option available

Technical data

Connection: Flange

Actuator: With bare shaft

Seal material: PFA or PTFE

Body material: 1.4301, stainless steel; EN-GJS-400-18-LT, ductile iron; S355J2G3 steel

Conformities: FDA; TA Luft (German Clean Air Act)

Max. operating pressure: 10 bar

Max. media temperature: 200 ° C

Min. media temperature: -20 ° C

Nominal sizes

DN 40 (1 1/2'')
DN 50 (2'')
DN 65 (2 1/2'')
DN 80 (3'')
DN 100 (4'')
DN 125 (5'')
DN 150 (6'')
DN 200
DN 250
DN 300
DN 350
DN 400
DN 450
DN 500
DN 600
DN 700
DN 900
DN 1000

GEMÜ 490 series products

GEMÜ 491 – pneumatic actuator

GEMÜ 498 – motorised actuator

GEMÜ 497 - manual


GEMÜ 490 is a butterfly valve with a bare shaft designed for use with chemicals, corrosive liquids and high purity water.  The disc and shaft are one piece. The body material is stainless steel, ductile iron or steel. The body liner is PFA or PTFE.

Integral to the corrosion resistance of the valve is its high specification liner seal. The shaft seal system is also designed to prevent dangerous media leaks to atmosphere.

  • Stainless steel or steel disc with PFA or PTFE body liner
  • Nominal sizes from DN40 – DN1000
  • Max. temperature 200°C
  • Min. temperature -20°C
  • PN3/10/16 bar media rated
  • Suited for corrosive liquid and gases
  • Suited for high purity water
  • FDA approved
  • ATEX option available

Technical data

Connection: Flange

Actuator: With bare shaft

Seal material: PFA or PTFE

Body material: 1.4301, stainless steel; EN-GJS-400-18-LT, ductile iron; S355J2G3 steel

Conformities: FDA; TA Luft (German Clean Air Act)

Max. operating pressure: 10 bar

Max. media temperature: 200 ° C

Min. media temperature: -20 ° C

Nominal sizes

DN 40 (1 1/2'')
DN 50 (2'')
DN 65 (2 1/2'')
DN 80 (3'')
DN 100 (4'')
DN 125 (5'')
DN 150 (6'')
DN 200
DN 250
DN 300
DN 350
DN 400
DN 450
DN 500
DN 600
DN 700
DN 900
DN 1000

GEMÜ 490 series products

GEMÜ 491 – pneumatic actuator

GEMÜ 498 – motorised actuator

GEMÜ 497 - manual


Interested in this product?
Call 01925 824044
OR
 
 
 
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Gemü Valves Ltd
10 Olympic Way
Birchwood
Warrington
WA2 0YL
Tel: 01925 824044
Fax: 01925 828002
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GEMÜ 490 - PFA lined butterfly valve with bare shaft