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| Media |
Air Chemicals Food / drink Process gases Steam Wastewater / effluent Water |
| Valve type |
Butterfly valves |
| Construction |
Stainless steel Mild steel |
| 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 491 is a butterfly valve with a pneumatic actuator. The disc and shaft are one piece. The body is avaiable in stainless steel, ductile iron or steel. The body liner is PFA or PTFE.
The butterfly valve is available in nominal sizes DN 40–900 (1½"–36") and in wafer and lug body versions.
Connection: Flange
Actuator: Pneumatic
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
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
