Series 2/977 11 ATEX
Type 2/977 valves for potentially explosive atmospheres are direct and external medium controlled and require external compressed air 4-10 bar for switching.
The design is simple and solid with fast response times.
This type of valve can be traversed and shut off from both sides. The ‘medium pressure below valve seat’ option should be selected in order to effectively prevent closing impacts with liquids. Special conditions (X) must be observed: Limitation of the ambient and medium temperature depending on the sealing material used.
Technical informations
Connections
G1/2, G3/4, G1, G2
Pressure
0 bar up to 16 bar
Temperature
-40 °C up to 200 °C
Type of Control
pneum. direct
Housing materials
CC499K red brass
Sealing
PTFE | NBR | NBR/NBR | PTFE/Silikon
Media
Water, H2O, Fuel Oil, Steam 180°C, Air, Water, Hot above 90°C H2O, Oxygen O2, Steam 200°C, Propane/Butane gaseous C3H8, Gases flammable, Water H2O with Glycole, natural Gas CH4, LPG liquified petrol gas propane, butane, Argon Ar, Gasoline, Dieseloil, Fuels, CO2 carbon dioxide gas, Methane CH4, CO carbon monoxide, Cool Emulsion, Cooling Water, Steam 110°C, Condensate, Condensate 200°C, Thermal-Oil >180°C, Hot Air 180°C, propylene glycol C3H8O2, Ethanol, Hydraulic Oil, Motor Oil, Mineral Oil, Rape Oil, dirty Fluids, Nitrogen Gas N2, Ethylene C2H4, Propylene, Propene - C3H6, refrigerant R290, R600a, Refrigerant R407C, Ethane C2H6, Acetone CH3COCH3, Ethylacetat CH3 CO2 CH2 CH3, Isopropanol CH3 CH(OH)CH3
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