Siemens Building Technology 277-03170 Valve Assembly
The Siemens 277-03170 Valve Assembly is a heavy-duty 2-way normally open globe valve engineered for precise modulating control in hydronic heating and cooling systems. Built with a rugged UNS CA 844 bronze body and durable brass trim, this 2-inch NPT assembly is rated for ANSI Class 250 applications, supporting a 40 Cv flow capacity with an equal percentage flow characteristic. This ensures linear heat output even during fluctuating pressure drops, making it an ideal choice for large-scale VAV units and fan coil operations where consistent discharge air temperatures are critical.
For actuation, this unit features a factory-mounted 8-inch pneumatic actuator designed for reliable fail-safe operation. The actuator utilizes a 5 PSI spring span with an adjustable spring range (typically 3-8 psi), allowing field technicians to fine-tune the start-to-close pressure based on specific sequence requirements. With a maximum close-off pressure of 37 PSI and a wide medium temperature range of 20°F to 250°F, the Siemens Flowrite 599 Series assembly provides the mechanical resilience needed for high-demand industrial HVACR environments.
Key Benefits- Optimized Flow Control: The equal percentage flow characteristic provides superior modulating performance in water and saturated steam applications.
- Industrial-Grade Construction: Features a high-pressure bronze body and brass trim to resist corrosion and extend service life in closed-loop systems.
- Field-Adjustable Spring: The adjustable spring range allows for precise calibration of the pneumatic actuator to match existing building automation sequences.
- High-Capacity Throughput: A 2" NPT connection and 40 Cv rating facilitate high-volume flow for large commercial zones.
What is the fail-safe position for this assembly?
This is a normally open (NO) valve assembly. In the event of a loss of pneumatic supply air, the spring return actuator will automatically drive the valve to the fully open position.
Is this valve suitable for steam applications?
Yes, the 277-03170 is rated for saturated steam up to 15 PSI and liquid temperatures up to 250°F, provided the differential pressure limits are maintained.
Can the spring range be adjusted after installation?
Yes, the 8-inch pneumatic actuator features an adjustable spring range, allowing technicians to shift the 5 PSI span to meet specific system requirements during commissioning.
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: $649.91
-65%$649.91
$227.47Siemens Building Technology 277-03170 Valve Assembly
The Siemens 277-03170 Valve Assembly is a heavy-duty 2-way normally open globe valve engineered for precise modulating control in hydronic heating and cooling systems. Built with a rugged UNS CA 844 bronze body and durable brass trim, this 2-inch NPT assembly is rated for ANSI Class 250 applications, supporting a 40 Cv flow capacity with an equal percentage flow characteristic. This ensures linear heat output even during fluctuating pressure drops, making it an ideal choice for large-scale VAV units and fan coil operations where consistent discharge air temperatures are critical.
For actuation, this unit features a factory-mounted 8-inch pneumatic actuator designed for reliable fail-safe operation. The actuator utilizes a 5 PSI spring span with an adjustable spring range (typically 3-8 psi), allowing field technicians to fine-tune the start-to-close pressure based on specific sequence requirements. With a maximum close-off pressure of 37 PSI and a wide medium temperature range of 20°F to 250°F, the Siemens Flowrite 599 Series assembly provides the mechanical resilience needed for high-demand industrial HVACR environments.
Key Benefits- Optimized Flow Control: The equal percentage flow characteristic provides superior modulating performance in water and saturated steam applications.
- Industrial-Grade Construction: Features a high-pressure bronze body and brass trim to resist corrosion and extend service life in closed-loop systems.
- Field-Adjustable Spring: The adjustable spring range allows for precise calibration of the pneumatic actuator to match existing building automation sequences.
- High-Capacity Throughput: A 2" NPT connection and 40 Cv rating facilitate high-volume flow for large commercial zones.
What is the fail-safe position for this assembly?
This is a normally open (NO) valve assembly. In the event of a loss of pneumatic supply air, the spring return actuator will automatically drive the valve to the fully open position.
Is this valve suitable for steam applications?
Yes, the 277-03170 is rated for saturated steam up to 15 PSI and liquid temperatures up to 250°F, provided the differential pressure limits are maintained.
Can the spring range be adjusted after installation?
Yes, the 8-inch pneumatic actuator features an adjustable spring range, allowing technicians to shift the 5 PSI span to meet specific system requirements during commissioning.
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
Shipping & Returns
Description
The Siemens 277-03170 Valve Assembly is a heavy-duty 2-way normally open globe valve engineered for precise modulating control in hydronic heating and cooling systems. Built with a rugged UNS CA 844 bronze body and durable brass trim, this 2-inch NPT assembly is rated for ANSI Class 250 applications, supporting a 40 Cv flow capacity with an equal percentage flow characteristic. This ensures linear heat output even during fluctuating pressure drops, making it an ideal choice for large-scale VAV units and fan coil operations where consistent discharge air temperatures are critical.
For actuation, this unit features a factory-mounted 8-inch pneumatic actuator designed for reliable fail-safe operation. The actuator utilizes a 5 PSI spring span with an adjustable spring range (typically 3-8 psi), allowing field technicians to fine-tune the start-to-close pressure based on specific sequence requirements. With a maximum close-off pressure of 37 PSI and a wide medium temperature range of 20°F to 250°F, the Siemens Flowrite 599 Series assembly provides the mechanical resilience needed for high-demand industrial HVACR environments.
Key Benefits- Optimized Flow Control: The equal percentage flow characteristic provides superior modulating performance in water and saturated steam applications.
- Industrial-Grade Construction: Features a high-pressure bronze body and brass trim to resist corrosion and extend service life in closed-loop systems.
- Field-Adjustable Spring: The adjustable spring range allows for precise calibration of the pneumatic actuator to match existing building automation sequences.
- High-Capacity Throughput: A 2" NPT connection and 40 Cv rating facilitate high-volume flow for large commercial zones.
What is the fail-safe position for this assembly?
This is a normally open (NO) valve assembly. In the event of a loss of pneumatic supply air, the spring return actuator will automatically drive the valve to the fully open position.
Is this valve suitable for steam applications?
Yes, the 277-03170 is rated for saturated steam up to 15 PSI and liquid temperatures up to 250°F, provided the differential pressure limits are maintained.
Can the spring range be adjusted after installation?
Yes, the 8-inch pneumatic actuator features an adjustable spring range, allowing technicians to shift the 5 PSI span to meet specific system requirements during commissioning.
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.
