Siemens Valves & Actuators
Ball Valves
Siemens ball valves are designed with an internal ball that has flow paths through it and rotates 90 degrees between PTFE seals to open and close to control flow. They are best suited for equal-percentage control. For use in fully open/closed or modulating applications.
- 2-way and 3-way ball valves are available in ½- to 2-inch sizes with Cv ranging from 0.4 to 160.
- 6-way ball valves are available in ½- to 1-inch sizes with Cv ranging from 0.3 to 4.7.
Advantages: Relatively low cost; high flow capacity; low pressure drop
Disadvantages: High torque requirements for control; low flow cavitation risk
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Butterfly Valves
Siemens resilient seat butterfly valves are suitable for standard-temperature or high-temperature applications. Designed to last longer with minimal downtime, Siemens resilient seat butterfly valves are available in sizes from 2 to 24 inches (DN 50 to 600) built with the highest temperature and chemical resistance available on the market. Suited for linear or equal-percentage control. For use in fully open/closed, throttling, or small pressure-drop applications.
- Two-way and three-way configurations, 2” through 20” butterfly valves are lug style. 24” valves are double-flanged.
Advantages: Relatively low cost; high flow capacity; low pressure drop
Disadvantages: High torque requirements for control; low flow cavitation risk
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Globe Valves
The RDY2000BN is a BACnet MSTP-enabled, highly flexible and versatile device supporting multi-stage conventional, RTU, and heat pump applications. Multiple, configurable inputs and outputs support flexible sensing schemes and types of sensors like CO2, occupancy, and output relays for economizer and humidity control. Built-in IAQ applications and humidity control ensure occupant comfort with simple configurations. Simple and intuitive Wizard Navigator makes start-up configuration a snap.
Advantages: Suited for water and steam; efficient and precise throttling; highly accurate flow control
Disadvantages: Relatively low flow coefficients; relatively higher costs than other valves
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Magnetic Valves
The NEMA Type 3R bypass and NEMA Type 3R drive are companion packages for the family of BT300 VFDs. NEMA Type 3R enclosed are manufactured for outdoor locations. Enclosures with this rating provide a degree of protection to personnel against access to hazardous parts; a degree of protection of the equipment inside to keep out solid foreign objects (falling dirt), and water (rain, sleet, snow); and are undamaged by ice forming on the enclosure.
- User-selectable linear or equal-percentage flow characteristic
- DIP switch selectable input signal 0 to 10V or 4 to 20mA
- Fast positioning
- Reduction in the level
Precise control from extremely high stroke resolution.
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Pressure - Independent Control Valves
Pressure-independent control valves (PICVs) improve system performance and optimize delta-T. Siemens PICVs integrate three functions into a single device. Siemens PICVs have the unique advantage of always maintaining their full stroke, regardless of the maximum adjustable flow setting, to provide better control. On-site commissioning is simple thanks to the easy max flow presetting and automatic balancing. With Siemens PICVs, there are fewer components, less installation effort, and fewer leak points–which leads to no callbacks.
Two-way threaded valves ranging from ½- to 2-inches with maximum flow settings from 0.3 to 50 gpm.
Flanged valves with line sizes from 2½- to 6 inches with maximum flow settings from 19 to 860 gpm.
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Zone Valves
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Communicating Thermostats
Siemens OpenAir electronic damper actuators are designed for reliable operation, quick installation, and low power consumption. Accurate positioning and a wide selection of torque and control signal ranges make this actuator line ideal for a variety of HVAC applications.
Spring return actuators from 20 lb.-in. to 160 lb.-in., ideal for economizer damper, roof-top unit, and air-handling unit control.
Non-spring return actuators for optimum VAV box control and greater energy efficiency.
Fail-safe and fail-in-place damper actuators for critical control environments, such as lab and fume hood conditions.
Fire and Smoke damper actuators provide 15-second open/closed operation and 30-second motor drive operation.