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HVAC Valves

HVAC Valves
HVAC Valves
A valve is a device that regulates the flow of a fluid by opening, closing or partially obstructing a passageway.

Modern control valves operate on sophisticated automation systems that are based on external input. The valve is used to regulate flow based on previously-determined setpoints or variables, for example. These types of valves require an actuator, which will position the valve accurately depending on its input and setup. Actuators can be electrical, hydraulic or pneumatic, depending on the application and its environment.

Valves are critical in HVAC applications, and paired with actuators are designed to regulate the flow of both hot and chilled water in HVAC systems. Ball valves are most common for HVAC systems, able to regulate flow in several different directions with just one fitting.

SKD Series Image
  • Direct-Coupled Installation Requires No Special Tools or Adjustments
  • Spring Return Available for Fail-Safe Position
  • Visual and Electronic Stroke Indication
  • 250 lb (1150 N) Nominal Force
  • Integral Position Feedback
  • Die-Cast Aluminum Housing
  • Maintenance-Free
  • Manual Override
Designed for use with the Flowrite and other standard valves with a 3/4" (20 mm) stroke, the Flowrite SKD Electronic Valve Actuator receives a 0 to 10 VDC or 4 to 20 mA control signal to proportionally control the valve. The spring return actuators are available with standard or advanced functionality.
Advanced Features (UA Suffix Only):
  • Designed to Be Used with Other Manufacturer’s Valves with the Appropriate Universal Valve Retrofit Kit
  • Selectable Operation Direction (Direct or Reverse Acting)
  • Choice of Linear or Equal Percentage Flow Characteristics
  • Adjustable Start and Span
  • Stroke Limit Control
SAX Series Image
  • Electro-Mechanical Switches Protect Components from Overload and Stall Condition
  • Automatic Calibration (SAX61.03U Only)
  • Visual and Electronic Stroke Indication
  • Proportional or Floating (3P) Control
  • 180 lb (800 N) Nominal Force
  • Direct-Coupled Installation
  • Non-Spring Return
  • Maintenance-Free
  • Manual Override
Designed for use with Pressure Independent Control Valves with a 3/4-inch (20 mm) stroke. The SAX Electronic Actuator requires either a 24 VAC or 24 VDC supply and receives a 0 to 10 VDC or 4 to 20 mA control signal to proportionally control the valve or a floating control signal to provide floating control of the valve.
FLOWRITE Series Image
  • Equal Percentage or Linear Flow Characteristics
  • Brass or Stainless Steel Trim
  • Close off up to 250 psi
  • Direct Coupled Bonnet
  • Fully Serviceable
Siemens Flowrite series designed to work with either a pneumatic or electronic actuator with a ¾ inch (20 mm) stroke. They are available in ANSI class for normally open or normally closed. The valves are recommended for water, low and high pressure steam and glycol solutions up to 50 percent.
SKB-SKC Series Image
  • Direct-Coupled Installation Requires No Special Tools or Adjustments
  • Visual and Electronic Stroke Indication
  • Spring Return or Non-Spring Return
  • 1000 Lb (4400 N) Nominal Force
  • Die-Cast Aluminum Housing
  • Maintenance-Free
  • Manual Override
Designed for use with Flowrite and other standard valves with 3/4-inch and 1-1/2-inch (20 mm and 40 mm) strokes, the Flowrite SKB/C Electronic Valve Actuator requires a 24 VAC supply to provide floating control of a valve.
FLOWRITE Series Image
  • Equal Percentage or Linear Flow Characteristics
  • Brass or Stainless Steel Trim
  • Close off up to 250 psi
  • Direct Coupled Bonnet
  • Fully Serviceable
Siemens Flowrite series designed to work with either a pneumatic or electronic actuator with a ¾ inch (20 mm) stroke. They are available in ANSI class for normally open or normally closed. The valves are recommended for water, low and high pressure steam and glycol solutions up to 50 percent.
SSB Series Image
  • Orderable as an Actuator Only or as a Complete Valve/Actuator Assembly
  • Direct-Coupled For Installation without Tools
  • Close-Off Up to 70 Psi on 1/2-Inch Valve
  • UL-Listed for Plenum Installations
  • Visual Position Indication
  • Non-Spring Return
  • Manual Override
The Powermite SSB Electronic Valve Actuator requires a 24 VAC supply floating control signal to provide three-position control. This actuator is designed to work with Powermite MZ Series Valves with a 7/32-inch (5.5 mm) stroke and a threaded valve bonnet that fits the actuator. The Powermite SSB Electronic Valve Actuator is for use in heating and cooling HVAC applications with Powermite valves that need 45 lbf (200 N) of nominal force.
SSC81 Series Image
  • Orderable as an Actuator Only or as a Complete Valve/Actuator Assembly
  • Direct Coupled, One Step Installation without Special Tools
  • UL Listed for Plenum Installations
  • Spring Return or Non-Spring Return
  • Visual Position Indication
  • Close off up to 120 psi
  • Manual Override
The Powermite SSC81U and SSC81.5U Electronic Valve Actuators require a 24 Vac supply and receive a floating control signal. These actuators control Powermite MT Series Valves with a 7/32-inch (5.5 mm) stroke. For use in heating and cooling applications in liquid and steam applications requiring a minimum of 67 lbs. (300 N) nominal force. The SSC81 accepts plenum cable or 3/8-inch flex conduit connection.
VG7000 Electric Control Valves Series Image
  • Complete Family of 1/2 through 2 in. Bronze Valves, Brass and Stainless Steel Trim, with Several Styles of Electric and Pneumatic Actuators
  • Flexible Features and Options Ordering Matrix Suits Your Specific Application via Thousands of Easy-to-Select, Factory-Assembled Combinations.
  • Standard Johnson Controls® Ring Pack Packings Provides Industry-Leading Reliability and Operating Life.
  • Testing for Tight Shutoff of Every Valve Provides Energy Conservation and Ensures Occupant Comfort.
  • Standard Bonnet and Stem Design Allows Easy Field Retrofit, Easy Field Mounting, and Interchangeability of Actuators with the Use of Standardized Mounting Kits.
VG7000 Series Bronze Control Valves are designed primarily to regulate the flow of water and steam in response to the demand of a controller in Heating, Ventilating, and Air Conditioning (HVAC) systems. These valves are available in Normally Open (N.O.), Normally Closed (N.C.), and three-way mixing configurations. Both electric and pneumatic actuators are available for factory or field mounting.
  • Automatic Stroke Adjustment — provides easy, quick, and precise commissioning.
  • Manual Override as Standard — allows manual positioning of valve for easy commissioning and servicing.
  • IP54 Enclosure Protection — allows installation in a wide range of environments.
  • Unique Swing-Gate Yoke — offers fast and secure attachment to the valve.
  • Brushless Motor — ensures low energy consumption and long life.
  • Proportional Model — enables one model to be used for various control types.
  • Force-Controlled Motor Shutoff — reduces energy consumption, wear of the actuator, and protects the valve from excessive forces.
  • Stroke Position Indicator — gives visual indication of valve operation, provides automatic adjustment of stroke indicators during first cycle of operation.
  • Status Light-Emitting Diode (LED) — gives visual indication of actuator status and assists with diagnostic.
  • Optional Integrated Auxiliary Switches — provides adjustable switch points with line voltage capability.
  • Integral Cable with Colored Conductors — simplifies installation and field wiring.
The VA7800 Series of electric valve actuators control VG7000 Series Bronze Globe Valves in HVAC systems. The VA7800 Series produce a minimum linear output force of 180 lb (800 N) and are ordered field mounted or factory coupled to 1/2 through 2 in. VG7000 Series Bronze Globe Valves. All actuators are direct mount and available in both spring-return and non-spring-return models. Spring-return models ship from the factory set for DC 0 to 10 V Proportional Control. With a change of DIP switch settings, this model can be field configured to On/Off or Floating Control. In addition to these settings, optional auxiliary switches are also available. Non-spring-return models are available in AC 24 V On/Off (Floating) Control, or DC 0 to 10 V Proportional Control. Models are available with or without optional auxiliary switches.
MX Series Image
. Selectable Standard Interface: 0/2 to 10 VDC or 0/4 to 20 mA
  • Low-Friction, Heavy-Duty, and Maintenance-Free
  • Selectable Valve Characteristic: Equal Percentage or Linear
  • Fast Positioning Time – Under Two Seconds
  • 0.5 to 2.5 in Line Size
The MXG461B Modulating Control Valves are through-port or mixing valves with magnetic actuators. The actuator is equipped with an electronics module for positioning control and position feedback. If the power is off, the valve control path A - AB is closed. The short positioning time, high resolution, and high rangeability make these valves ideal for modulating control of domestic, hot, and cold water systems.
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