3331 - pneumatic - DIN

3331 - pneumatic - DIN

Butterfly valve

VALVE STYLE
Butterfly valve

USAGE

VERSION
DIN

MEDIUM TEMPERATURE
-10 to 400 °C / 14 to 752 °F

SUPPLY
Pneumatic

VALVE SIZE
DN 100 to DN 400

PRESSURE RATING
PN 10 to PN 40

LINING
without

3331 - pneumatic - DIN can be combinated with the following actuations:

Special features:

Single-acting pneumatic diaphragm actuator for butterfly valves and other final control elements with rotary closure members
Direction of action (fail-open/fail-close) can be selected as required
Diaphragm area 160 or 320 cm²
Various signal pressure ranges
Travel stops externally adjustable to limit the opening angle
No special tools required for mounting and conversion
Signal pressures up to max. 6 bar
Connections according to DIN ISO 5211

Special features:

Single-acting and double-acting piston actuator
Suitable for strict requirements in chemical plants
Opening angle 90°
Signal pressures up to 10 bar
Torques from 5 to 11674 Nm
Temperatures from –40 to +80 °C
End positions adjustable within wide range (+5°/–15°)
Diagonal or parallel square drive position
Position indicator adjustable in steps of 45°
Encapsulated spring assemblies
Power transmission without clearance thanks to involute gearing
Direction of rotation reversible without requiring additional parts
Surface treatment tested by Kesternich sulfur dioxide corrosion test and salt spray test
Centering ring milled into the housing
Standardized attachment of valve accessories according to VDI/VDE 3845 or NAMUR
Simple attachment according to DIN EN ISO 5211
Blow-out-proof travel stop screws
Fast stroking speeds as standard