TPD/TPS

Helical spline design - Compact quarter-turn pneumatic actuators for on-off and modulating control of ball, butterfly, plug or damper style valves in heavy duty service. Generating output torques up to 300,000 Nm, it is the ideal solution where space is limited. Product overview - Designed with a unique helical slot design, which transforms the linear movement of a piston into a quarter-turn rotation, generating high break torques to actuate large valves. With its spring integrated into the cylinder, it is very compact with the same dimensions whether for double-acting or spring return; spring to open or spring to close operations

Features & Benefits

Customizable helical profile to suit valvespecific torque profile (special execution).
Modular design enables fine-tuned performance and easy customization.
Totally enclosed, weatherproof housing in fabricated carbon steel provides maximum strength.
Corrosion resistant to EN 15714-3; C5I/C5M.
Internal coating and special surface treatment protects against corrosion.
Hard chrome-plated piston rod for corrosion resistance and minimal friction.
Electroless nickel-plated cylinder bore provides maximum corrosion resistance and reliability.
Low hysteresis and high response enhance modulating service.
Bearings in bronze or sintered bronze impregnated with PTFE provide reliability, smooth operation and extended service life.
Adjustable end stopper installed below cylinder flange for easy access.
Position indicator directly connected to output drive.
Design and sizing to most recognized International standards and FEA tools.
Extensively tested for long life.
Suitable for use in SIL 3 applications.

Specifications

Approvals
Safety Integrity Level:
(IEC 61508-1°¿7:2010): SIL3
Hazardous area:
European Directive ATEX
Enclosure Standards:
(IEC 60529): IP66/IP67M
Machinery Directive:
2006/42/EC

Technical data
Supply pressure: 3.0 to 10.0 bar g
Max allowable pressure: 12.0 bar g
Supply medium: air, nitrogen
Output torque: to 300,000 Nm
Ambient temperature
Standard range
(PED compliant): -20°C to +100°C/-4°F to +210°F
Low temperature range
(PED compliant): -40°C to +100°C/-40°F to +210°F
Low temperature ranges: -60°C to +100°C/-76°F to +210°F
External angular stroke adjustment: ± 5°
Valve attachment interface: to ISO 5211