Siemens offers a wide range of HVAC products in the industry.  Yorkland represents the full line of valves, actuators and sensors, thermostats, and controllers to meet all your application needs. Visit Siemens HVAC Site Universal Retrofit Linkage - Keep the Valves, Change the Actuator ! Retrofit existing valve actuators. Upgrading existing actuators from pneumatic to electric controls and actuators has never been easier with the Siemens Universal Linkage: Brochure Installation Sheet Worksheet for sizing the correct linkage to the existing valve For application or additonal information contact us.
Flowrite Actuators FEATURES: Hand operated manual override with override visual indicator – for easy manual control Enclosed ‘Advanced Control Technology’ -LED status light, self calibration feature, Position feedback, selectable control input Electro-Hydraulic technology = Up to 1000 Lbs of force - spring return up to 6 inches. Extremely long service life, virtually no internal moving parts Direct Coupled Connection to valve Actuator can also be retrofitted to existing valves in-line! MORE INFO Damper Actuators FEATURES: Quickly and easily installs in the field Direct-coupled connection Self-centering shaft coupling Pre-cabled, plenum options Reliable and accurate control of speed, torque, braking and stall protection functions Outstanding durability Reliable, failsafe operation Consistent wiring detail across the product family SAMPLE APPLICATIONS: Terminal Units Multi-zone Mixing Boxes Outside Air Dampers Zone Isolation Dampers Vortex Dampers Economizer Units Return Air Dampers Valves FEATURES: Direct-coupled Manual Override Spring return fail-safe available 100:1 Position resolution Visual and Electronic Position Indication Control Signals Selectable 4-20 mA/0-10Vdc 24Vac 3-Pos SAMPLE APPLICATIONS: Air Handling Units Central Distribution Boilers Chillers Valve Retrofit Kit Information Brochure Instruction Sheet Work Sheet Pneumatics FEATURES: Rugged proven design Plug-in air connections for ease of installation, calibration and service Internal restrictors for transmitter inputs Single and multiple input available SAMPLE APPLICATIONS: Temperature Humidity Static Pressure Air Velocity