The PSF-M is the manually operated version, while the mechanical spring return feature is standard on the PSF.
Actuators in stock · Delivery within days on available items.
1 to 2 kN
5 to 40 mm stroke
Integrated Positioner
IP65, optional IP67
Fail-Safe Reliability: Proper Loss-of-Power Behaviour
The PSF utilizes a spring return to retract its stem in the event of a power failure. The PSF-M is equipped with a handwheel and does not include this fail-safe return function. Both product lines feature a brushless motor and non-contact position measurement.
PSF Mechanical Spring Return
Select either a rising stem (OS&Y) or non-rising stem (NRS) for fail-safe operation.
PSF-M Manual Override
Handwheel and local push buttons for manual actuator override and control.
Integrated Control
Analog setpoint and feedback with automatic commissioning.
Non-Contact Position Sensing
The Hall effect sensor measures stroke without mechanical contact.
Three distinct configurations
The speeds indicated represent stem travel. Maximum thrust does not substitute for verifying allowable thrust throughout the entire stroke.
SPRING RETURN
PSF301/302 and PSF401/402
1 or 2 kN models engineered to return to a mechanical fail-safe position.
Load
1 or 2 kN
Stroke
5 to 40 mm
Motorized Operating Speed
0.3 mm/s
Safety
Rising or Non-Rising Stem (OS&Y or NRS)
Stem direction alone does not dictate whether the valve opens or closes.
QUICK-ACTING MODELS
PSF402.1 / PSF402.2
Two 2 kN configurations featuring distinct operating speeds.
Stroke
5 to 40 mm
Motorized PSF402.1
0.9 mm/s
PSF402.1 Spring-Loaded
1.1 mm/s ±10%
PSF402.2, Dual-Mode
2 mm/s ±10%
Total cycle time depends on the actual stroke length utilized.
MANUAL OVERRIDE
PSF-M301/302 and PSF-M401/402
Handwheel-operated configurations, without mechanical spring return.
Load
1 or 2 kN
Stroke
5 to 40 mm
1 kN Models
0.6 / 0.9 / 1.2 mm/s
2 kN models
0.5 / 0.75 / 1 mm/s
The speed is selected from the predefined values specified for this part number.
Setting the standard for reliable performance with VAMECA
We start with your valve’s required operating behaviour, particularly in fail-safe power loss conditions. We assist you in selecting between PSF and PSF-M, verifying the mechanical linkage, and identifying available configurations.
Valves and Assembly
Operating Torque Required
Specify running torque/thrust and seating force.
Stroke and Linkage
Record the stroke, stem connection, and bracket dimensions.
Fail-Safe Position
Define the stem travel and the expected actual valve position.
Power Generation and Environmental Solutions
Power Supply
24 V AC/DC or 100–240 V single-phase AC version.
Signal
Selectable 0/4–20 mA or 0/2–10 V setpoint and feedback.
Service and Professional Environment
Verify S2 30 min or S4 50% duty cycle, as well as an ambient temperature range of −10 to +60 °C.
Send us the nameplate data, a photo of the installation, and your operating requirements. VAMECA will work with you to specify the configuration, confirm availability, and review critical pre-installation checkpoints.
Complete Configuration
Accessories are selected based on the part number and connection type.
Position switches or relays
Auxiliary contacts and position relays transmit status feedback directly to the PLC.
Protection and Condensation Control
IP67 protection and anti-condensation heaters are optional features to select based on your specific installation requirements.
On/Off or Modulating Control
The positioner is integrated. The signal, feedback, and binary control must match the selected wiring diagram.
PS Automation Documentation
Complementary Product Lines
Compare the motion, control mechanism, and fail-safe function before selecting your actuator.
OTHER PS AUTOMATION PRODUCT LINES
PSL
The PSL series actuates linear motion valves. VAMECA delivers the technical expertise to help you select the exact thrust, stroke, and control options engineered for your facility's requirements.
Discover PSL →
OTHER PS AUTOMATION PRODUCT LINES
PSF-EX / PSF-M-EX
PS Automation actuators for explosive atmospheres, featuring either the PSF-EX spring-return fail-safe or the PSF-M-EX manual override. Hazardous area markings and mounting configurations are fully verified to match your plant's specific installation requirements.
Discover PSF-EX / PSF-M-EX →
ORDERING INFORMATION AND OPTIONS
PS Automation Accessories
Analog control, position feedback, communication, or fail-safe operations. Explore key features and verify their compatibility with your PS Automation part number.
Explore PS Automation Accessories →