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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.

FLOWRITE Series Image
  • Equal Percentage or Linear Flow Characteristics
  • Brass or Stainless Steel Trim
  • Close off up to 250 psi
  • Direct Coupled Bonnet
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.
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
V47 Series Image
  • No Close Fitting Sliding Parts in Water Passages
  • Range Spring Does Not Come in Contact with the Cooling Water
  • Easy Manual Flushing, If Required
  • Valve Design Minimizes Chatter and Water Hammer
The V47 is a temperature actuated modulating valve that regulates the flow of water or glycol to maintain a desired temperature. Three temperature ranges for each valve size are available. Many valves come with a removable bypass plug that can be replaced by the bypass orifice provided separately with each valve. Valve action is open on temperature increase.
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.
V46 Series Image
  • 3/8, 1/2, and 3/4 in. Valves May Be Disassembled and Reassembled without Detaching from the Refrigeration System or without Pumping Down
  • No Close Fitting or Sliding Parts in Water Passages
  • Minimizes Chatter or Water Hammer
  • Free Movement of All Parts Provides Smooth Pressure Modulation
  • Refrigerant Adjustment Is Not Affected by Water Pressure
  • Withstands High Hydraulic Shock without Damage
  • Range Spring Does Not Come in Contact with Cooling Water
  • Easy Manual Flushing, If Required
The V46 is a pressure actuated modulating valve that is suitable for use either on closed or open systems. Direct acting valves open on pressure increase. This type of valve is primarily used to regulate the flow of water or glycol to a water cooled condenser on a refrigeration system.
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.
V4044 Series Image
  • Compact construction
  • Manual opener for power failure
  • Suitable for heating and cooling applications
These on-off and diverting line voltage valves consist of an actuator motor and valve assembly for controlling hot or chilled water. All models may be installed without disassembling the valve.
  • Easy installation
  • Hydronic control application
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.
MZ Series Image
  • Electronic Non-Spring Return Actuator
  • Low Leakage Rate (ANSI Class IV)
  • Close off up to 70 psi
  • Floating Control
J Electric Zone Valves Series Image
  • Economical Control of Hot or Chilled Water (up to 50% Glycol) for Fan Coil, Baseboard Radiator and VAV Reheat Applications.
  • 0 to 10 VDC Proportional and Three Wire Floating Control.
  • 32 to 200°F (0 to 93°C) Fluid Temperature Rating
  • 32 to 125°F (0 to 52°C) Ambient Temperature Rating
  • 300 Psig Static Pressure Rating
  • 20 to 30 VAC 50/60 Hz
  • Forged Brass Body
J Series Electric Zone Valves accurately control the flow of saturated steam, hot water, or chilled water through coils and heat exchangers of all types, in a wide range of Heating, Ventilating, and Air Conditioning (HVAC) applications. The synchronous motor design has been proven reliable in millions of installations worldwide. The actuator can be removed from the valve body quickly and easily, simplifying installation and servicing. No special linkage kit or commissioning is required.
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