Siemens Building Technology 257-02032 Valve Assembly
The Siemens Building Technology 257-02032 Valve Assembly is a contractor-grade solution designed for precise fluid control in terminal unit applications such as convectors and fan coil units. This 2-way normally open valve features a compact 1/2-inch NPT connection and a 0.63 Cv equal percentage flow characteristic, ensuring linear heat output across a wide range of operating conditions. Built with a rugged forged brass body and reliable brass trim, this assembly is engineered to withstand the demands of modern hydronic systems, handling media temperatures from 35°F to 250°F and close-off pressures up to 95 psi.
The integrated 2-inch pneumatic actuator operates with a standard 3-8 PSI spring range and a 7/32-inch stroke, providing consistent mechanical return to the open position upon loss of signal. This Siemens Powermite 599 MT Series assembly utilizes a 1/8-inch NPT barbed fitting for easy air connection, facilitating rapid field installation in tight mechanical spaces. By utilizing a modified equal percentage plug, the 257-02032 pneumatic valve maintains stable control loop performance, preventing hunt and overshoot in low-flow HVAC environments.
Key Benefits- Precise Throttling: The 0.63 Cv rating combined with modified equal percentage flow provides superior control for small-load terminal units.
- Fail-Safe Operation: Genuine normally open configuration ensures maximum flow during pneumatic signal failure, protecting against freezing.
- Durable Construction: High-quality brass trim and forged body materials reduce erosion and extend service life in water or glycol loops.
- Industry Standard Compatibility: Common 3-8 PSI spring range allows for seamless integration with existing pneumatic control systems.
What is the maximum operating pressure for this Siemens valve?
This 1/2 inch NPT valve is rated for an ANSI Class 250 body pressure, with a specific close-off pressure rating of 95 psi when paired with the 2-inch actuator.
Can this assembly be used for steam applications?
While primarily designed for hot and chilled water, the Siemens 257-02032 can handle low-pressure saturated steam up to 15 psig.
Is the actuator replaceable without removing the valve body?
Yes, the Powermite 599 series design allows for the pneumatic actuator to be serviced or replaced without breaking the pipe connections.
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: $138.92
-65%$138.92
$48.62Siemens Building Technology 257-02032 Valve Assembly
The Siemens Building Technology 257-02032 Valve Assembly is a contractor-grade solution designed for precise fluid control in terminal unit applications such as convectors and fan coil units. This 2-way normally open valve features a compact 1/2-inch NPT connection and a 0.63 Cv equal percentage flow characteristic, ensuring linear heat output across a wide range of operating conditions. Built with a rugged forged brass body and reliable brass trim, this assembly is engineered to withstand the demands of modern hydronic systems, handling media temperatures from 35°F to 250°F and close-off pressures up to 95 psi.
The integrated 2-inch pneumatic actuator operates with a standard 3-8 PSI spring range and a 7/32-inch stroke, providing consistent mechanical return to the open position upon loss of signal. This Siemens Powermite 599 MT Series assembly utilizes a 1/8-inch NPT barbed fitting for easy air connection, facilitating rapid field installation in tight mechanical spaces. By utilizing a modified equal percentage plug, the 257-02032 pneumatic valve maintains stable control loop performance, preventing hunt and overshoot in low-flow HVAC environments.
Key Benefits- Precise Throttling: The 0.63 Cv rating combined with modified equal percentage flow provides superior control for small-load terminal units.
- Fail-Safe Operation: Genuine normally open configuration ensures maximum flow during pneumatic signal failure, protecting against freezing.
- Durable Construction: High-quality brass trim and forged body materials reduce erosion and extend service life in water or glycol loops.
- Industry Standard Compatibility: Common 3-8 PSI spring range allows for seamless integration with existing pneumatic control systems.
What is the maximum operating pressure for this Siemens valve?
This 1/2 inch NPT valve is rated for an ANSI Class 250 body pressure, with a specific close-off pressure rating of 95 psi when paired with the 2-inch actuator.
Can this assembly be used for steam applications?
While primarily designed for hot and chilled water, the Siemens 257-02032 can handle low-pressure saturated steam up to 15 psig.
Is the actuator replaceable without removing the valve body?
Yes, the Powermite 599 series design allows for the pneumatic actuator to be serviced or replaced without breaking the pipe connections.
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.
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Description
The Siemens Building Technology 257-02032 Valve Assembly is a contractor-grade solution designed for precise fluid control in terminal unit applications such as convectors and fan coil units. This 2-way normally open valve features a compact 1/2-inch NPT connection and a 0.63 Cv equal percentage flow characteristic, ensuring linear heat output across a wide range of operating conditions. Built with a rugged forged brass body and reliable brass trim, this assembly is engineered to withstand the demands of modern hydronic systems, handling media temperatures from 35°F to 250°F and close-off pressures up to 95 psi.
The integrated 2-inch pneumatic actuator operates with a standard 3-8 PSI spring range and a 7/32-inch stroke, providing consistent mechanical return to the open position upon loss of signal. This Siemens Powermite 599 MT Series assembly utilizes a 1/8-inch NPT barbed fitting for easy air connection, facilitating rapid field installation in tight mechanical spaces. By utilizing a modified equal percentage plug, the 257-02032 pneumatic valve maintains stable control loop performance, preventing hunt and overshoot in low-flow HVAC environments.
Key Benefits- Precise Throttling: The 0.63 Cv rating combined with modified equal percentage flow provides superior control for small-load terminal units.
- Fail-Safe Operation: Genuine normally open configuration ensures maximum flow during pneumatic signal failure, protecting against freezing.
- Durable Construction: High-quality brass trim and forged body materials reduce erosion and extend service life in water or glycol loops.
- Industry Standard Compatibility: Common 3-8 PSI spring range allows for seamless integration with existing pneumatic control systems.
What is the maximum operating pressure for this Siemens valve?
This 1/2 inch NPT valve is rated for an ANSI Class 250 body pressure, with a specific close-off pressure rating of 95 psi when paired with the 2-inch actuator.
Can this assembly be used for steam applications?
While primarily designed for hot and chilled water, the Siemens 257-02032 can handle low-pressure saturated steam up to 15 psig.
Is the actuator replaceable without removing the valve body?
Yes, the Powermite 599 series design allows for the pneumatic actuator to be serviced or replaced without breaking the pipe connections.
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.
