24 Vac, On/Off, Floating or Proportional Control
1/2 to 2-inch
Chrome-plated Ball & Brass Stem or Stainless Steel Ball & Stem
Spring Return or Non-Spring Return
Ball Valves
2-Way Ball Valve and Actuator.
Description
Designed to provide excellent equal percentage ow
control, two-way Ball Valves are available in 1/2 to 2-inch
line sizes and are 1/4-turn rotary control valves. These ball
valves are designed to couple with an OpenAir actuator.
Features
• Universal mounting plate accommodates different
actuator sizes
• Variety of ball sizes and ow coefcients minimizes
the need for downsizing pipes and accurately controls
uid through coils
• Industry leading close-off
• Actuator and plate can be rotated to facilitate
installation and wiring
• Standoffs and mounting plate provide a thermal barrier
between the actuator and valve
• Plastic mounting plate, extensions, and handle do not
condensate in chilled or hot water applications
• Operating handle can manually operate valve in the
event of a power failure
• Available as on/off (2P), oating (3P), or proportional
control
• Spring return or non-spring return
• On/off with dual auxiliary switches available on full port
valves with stainless steel ball and stem
Applications
Ball Valves can control hot or chilled water and up to
50% glycol solution in convectors, fan coil units, unit
conditioners, radiation, and reheat coils.
Application Drawings
The parabolic shape of the ow optimizer orice allows a
slow opening valve. Equal movements of the valve stem
at any point of the ow range changes the existing ow an
equal percentage regardless of the existing ow. The ball
valve equal percentage ow characteristic mirrors the ow
characteristic of a coil, resulting in linear heat transfer.
Ball Valve Equal Percentage Flow Control.
A-197
Valves
Siemens
Product Guard
PLUS 3 Warranty
www.usa.siemens.com/hvac
Two-Way Ball Valve Specifications
Pressure Class .......................................................ANSI 250 (600 WOG)