Moisture Separator Combo

The SAY-DA Series from “aira” Euro Automation features robust Scotch Yoke Actuators engineered for high-performance quarter-turn valve automation. With torque capacities up to 116,984 Nm, these actuators are ideal for operating Ball, Butterfly, and Plug Valves, Dampers, or any device requiring precise 90° movement for on-off or modulating service.

This actuator series is built with a symmetrical yoke design, delivering maximum torque at both ends of the stroke. Equipped with square sliding bearings and a guide bar, it offers high cycle life, smooth operation, and reduced wear.

The SAY-DA series supports full automation through a wide range of accessories including limit switches, positioners, solenoids, jackscrews, and hydraulic overrides—all designed to enhance flexibility, reliability, and performance.

Specifications & Standards

Size Range: SAY-14 to SAY-60
Model: OJS - 288
Torque Range: Up to 116,984 Nm
Working Pressure: 4 to 7 Bar
Temperature Range: -20°C to 90°C
Body Material: Extruded Aluminium, Anodized
Yoke Shaft Material: EN8
Shaft Material: EN8
Piston Material: Aluminium
Seals: NBR (Optional low/high temperature variants available)
Mounting Interface: ISO 5211 Standard
Application: Valve Automation (On-Off / Modulating)

Features & Benefits

Adjustable Travel Stops: ±8° adjustment for both clockwise and counter-clockwise strokes.
High-Performance Seals: Nitrile rubber piston O-rings ensure excellent sealing; optional temperature-specific seals available.
PTFE Guide Bands: Smooth piston motion with reduced friction and enhanced durability.
Reinforced Piston Rod: Extra-large piston rod ensures maximum torque transmission and long service life.
Namur Mounting Pads: Compatible with standard accessories like solenoids, limit switches, and positioners.
Ductile Iron Center Body: Provides strength and long-term performance under pressure.
Modular Design: Supports customization for various air pressures and fail-safe configurations (Fail-Open / Fail-Close).
Heavy-Duty Cylinders: Chrome-plated steel pressure cylinders resist corrosion and wear.
Safe Spring Cartridges: Welded cartridges available in various configurations for broad pressure range adaptability.
Alloy Steel Springs: Heat-treated, corrosion-resistant springs ensure high cycle life.
Low-Friction Bearings: Bronze slide bearings and steel slide blocks minimize wear and increase actuator lifespan.
Symmetric Yoke Design: Carbon steel Scotch Yoke mechanism maximizes torque at stroke extremes.
Weatherproof Enclosure: Central body is fully enclosed and weather-resistant for outdoor and harsh environments.