3310 - pneumatic - ANSI

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