Siemens Building Technology 268-03166 Valve Assembly
The Siemens Building Technology 268-03166 is a heavy-duty 2-way normally open globe valve assembly designed for precise flow control in hydronic and steam systems. Built around the Siemens 599 series valve body, this unit features a rugged bronze body (UNS CA 844) and dependable brass trim, ensuring long-term reliability in high-demand mechanical rooms. Featuring a 3/4 inch NPT connection and a 6.3 Cv rating, the assembly utilizes an equal percentage flow characteristic for superior modulation, particularly in chilled water or saturated steam applications. Driven by a 4-inch Flowrite pneumatic actuator with a 3-8 PSI spring range, it provides a failsafe "open" position upon loss of control air. Rated for ANSI Class 250, the Siemens 268-03166 handles medium temperatures from 20 to 250°F and maintains a Class IV leakage rate, making it a staple for technicians requiring exact pneumatic valve assembly performance and compatibility with standard building automation infrastructures.
- Optimized Flow Control: The equal percentage characteristic ensures linear heat output from coils, reducing hunting in the control loop.
- Durable Construction: Bronze body with brass trim offers superior corrosion resistance compared to standard iron valves.
- Failsafe Security: The normally open configuration ensures heating or cooling continues in the event of a pneumatic signal failure.
- High Pressure Resilience: ANSI Class 250 rating allows for installation in high-rise or high-pressure loop applications without compromise.
- Reliable Actuation: The 3-8 PSI pneumatic actuator provides consistent force and tight close-off across the 3/4-inch stroke.
Common Questions
What is the maximum fluid temperature for the Siemens 268-03166?
This valve assembly is rated for fluid temperatures between 20°F and 250°F, making it suitable for both chilled water and low-pressure saturated steam systems.
Can the pneumatic actuator be replaced without removing the valve from the line?
Yes, the Flowrite 4-inch actuator is field-replaceable and can be serviced or swapped using standard tools, minimizing downtime for the facility.
What happens to the valve position if control air pressure is lost?
This is a normally open valve; if the 3-8 PSI pneumatic signal is lost, the internal spring will default the valve to the fully open position.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $267.88
-65%$267.88
$93.76Siemens Building Technology 268-03166 Valve Assembly
The Siemens Building Technology 268-03166 is a heavy-duty 2-way normally open globe valve assembly designed for precise flow control in hydronic and steam systems. Built around the Siemens 599 series valve body, this unit features a rugged bronze body (UNS CA 844) and dependable brass trim, ensuring long-term reliability in high-demand mechanical rooms. Featuring a 3/4 inch NPT connection and a 6.3 Cv rating, the assembly utilizes an equal percentage flow characteristic for superior modulation, particularly in chilled water or saturated steam applications. Driven by a 4-inch Flowrite pneumatic actuator with a 3-8 PSI spring range, it provides a failsafe "open" position upon loss of control air. Rated for ANSI Class 250, the Siemens 268-03166 handles medium temperatures from 20 to 250°F and maintains a Class IV leakage rate, making it a staple for technicians requiring exact pneumatic valve assembly performance and compatibility with standard building automation infrastructures.
- Optimized Flow Control: The equal percentage characteristic ensures linear heat output from coils, reducing hunting in the control loop.
- Durable Construction: Bronze body with brass trim offers superior corrosion resistance compared to standard iron valves.
- Failsafe Security: The normally open configuration ensures heating or cooling continues in the event of a pneumatic signal failure.
- High Pressure Resilience: ANSI Class 250 rating allows for installation in high-rise or high-pressure loop applications without compromise.
- Reliable Actuation: The 3-8 PSI pneumatic actuator provides consistent force and tight close-off across the 3/4-inch stroke.
Common Questions
What is the maximum fluid temperature for the Siemens 268-03166?
This valve assembly is rated for fluid temperatures between 20°F and 250°F, making it suitable for both chilled water and low-pressure saturated steam systems.
Can the pneumatic actuator be replaced without removing the valve from the line?
Yes, the Flowrite 4-inch actuator is field-replaceable and can be serviced or swapped using standard tools, minimizing downtime for the facility.
What happens to the valve position if control air pressure is lost?
This is a normally open valve; if the 3-8 PSI pneumatic signal is lost, the internal spring will default the valve to the fully open position.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
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Description
The Siemens Building Technology 268-03166 is a heavy-duty 2-way normally open globe valve assembly designed for precise flow control in hydronic and steam systems. Built around the Siemens 599 series valve body, this unit features a rugged bronze body (UNS CA 844) and dependable brass trim, ensuring long-term reliability in high-demand mechanical rooms. Featuring a 3/4 inch NPT connection and a 6.3 Cv rating, the assembly utilizes an equal percentage flow characteristic for superior modulation, particularly in chilled water or saturated steam applications. Driven by a 4-inch Flowrite pneumatic actuator with a 3-8 PSI spring range, it provides a failsafe "open" position upon loss of control air. Rated for ANSI Class 250, the Siemens 268-03166 handles medium temperatures from 20 to 250°F and maintains a Class IV leakage rate, making it a staple for technicians requiring exact pneumatic valve assembly performance and compatibility with standard building automation infrastructures.
- Optimized Flow Control: The equal percentage characteristic ensures linear heat output from coils, reducing hunting in the control loop.
- Durable Construction: Bronze body with brass trim offers superior corrosion resistance compared to standard iron valves.
- Failsafe Security: The normally open configuration ensures heating or cooling continues in the event of a pneumatic signal failure.
- High Pressure Resilience: ANSI Class 250 rating allows for installation in high-rise or high-pressure loop applications without compromise.
- Reliable Actuation: The 3-8 PSI pneumatic actuator provides consistent force and tight close-off across the 3/4-inch stroke.
Common Questions
What is the maximum fluid temperature for the Siemens 268-03166?
This valve assembly is rated for fluid temperatures between 20°F and 250°F, making it suitable for both chilled water and low-pressure saturated steam systems.
Can the pneumatic actuator be replaced without removing the valve from the line?
Yes, the Flowrite 4-inch actuator is field-replaceable and can be serviced or swapped using standard tools, minimizing downtime for the facility.
What happens to the valve position if control air pressure is lost?
This is a normally open valve; if the 3-8 PSI pneumatic signal is lost, the internal spring will default the valve to the fully open position.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
