Siemens Building Technology 257-02044 Valve Assembly
The Siemens Building Technology 257-02044 Valve Assembly is a contractor-grade solution for precise fluid control in commercial HVACR systems. Utilizing the Powermite 599 MT Series architecture, this 2-way normally open valve is engineered for high-performance regulation of hot or chilled water in terminal units like convectors and fin-tube radiators. The assembly features a 3/4" NPT forged brass body and internal brass trim, ensuring long-term durability in closed-loop hydronic applications. With a 6.3 Cv equal percentage flow characteristic, it provides stable modulating control even under varying pressure drops.
Driven by a 2-inch pneumatic actuator with a 3-8 PSI spring range, this unit facilitates seamless integration into existing pneumatic control architectures. The direct-coupled design allows for tool-free installation and maintenance, while the ANSI Class 250 rating supports demanding system pressures. This Siemens pneumatic control valve is a reliable choice for technicians requiring a drop-in replacement that maintains linear system response and protects against thermal shock in medium-temperature fluid applications.
Key Benefits- Maximum Flow Efficiency: The 6.3 Cv rating and modified equal percentage plug provide superior control for high-demand terminal units.
- Pneumatic Precision: The MT Series 2-inch actuator utilizes a standard 3-8 PSI range, making it compatible with most building automation pneumatic signals.
- Rugged Construction: Forged brass body and brass trim withstand fluid temperatures ranging from 35°F to 250°F.
- Simplified Installation: Features NPT threaded connections and a low-profile actuator design for tight mechanical spaces.
- Fail-Safe Operation: The normally open (NO) configuration ensures full flow upon loss of control air, preventing freezing in heating applications.
Is the 257-02044 suitable for steam applications?
While the brass body is robust, this specific 257 series configuration is optimized for chilled and hot water service. For high-pressure steam, verify seat material compatibility with the manufacturer’s technical data for the 599 series.
What is the maximum close-off pressure for this assembly?
This Siemens pneumatic valve assembly typically handles a close-off pressure of approximately 35 PSI when paired with the standard 2-inch pneumatic actuator.
Can the actuator be replaced without removing the valve body?
Yes, the direct-coupled bonnet allows for the pneumatic actuator to be serviced or replaced without breaking the pipe connections, reducing downtime for the technician.
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: $153.82
-65%$153.82
$53.84Siemens Building Technology 257-02044 Valve Assembly
The Siemens Building Technology 257-02044 Valve Assembly is a contractor-grade solution for precise fluid control in commercial HVACR systems. Utilizing the Powermite 599 MT Series architecture, this 2-way normally open valve is engineered for high-performance regulation of hot or chilled water in terminal units like convectors and fin-tube radiators. The assembly features a 3/4" NPT forged brass body and internal brass trim, ensuring long-term durability in closed-loop hydronic applications. With a 6.3 Cv equal percentage flow characteristic, it provides stable modulating control even under varying pressure drops.
Driven by a 2-inch pneumatic actuator with a 3-8 PSI spring range, this unit facilitates seamless integration into existing pneumatic control architectures. The direct-coupled design allows for tool-free installation and maintenance, while the ANSI Class 250 rating supports demanding system pressures. This Siemens pneumatic control valve is a reliable choice for technicians requiring a drop-in replacement that maintains linear system response and protects against thermal shock in medium-temperature fluid applications.
Key Benefits- Maximum Flow Efficiency: The 6.3 Cv rating and modified equal percentage plug provide superior control for high-demand terminal units.
- Pneumatic Precision: The MT Series 2-inch actuator utilizes a standard 3-8 PSI range, making it compatible with most building automation pneumatic signals.
- Rugged Construction: Forged brass body and brass trim withstand fluid temperatures ranging from 35°F to 250°F.
- Simplified Installation: Features NPT threaded connections and a low-profile actuator design for tight mechanical spaces.
- Fail-Safe Operation: The normally open (NO) configuration ensures full flow upon loss of control air, preventing freezing in heating applications.
Is the 257-02044 suitable for steam applications?
While the brass body is robust, this specific 257 series configuration is optimized for chilled and hot water service. For high-pressure steam, verify seat material compatibility with the manufacturer’s technical data for the 599 series.
What is the maximum close-off pressure for this assembly?
This Siemens pneumatic valve assembly typically handles a close-off pressure of approximately 35 PSI when paired with the standard 2-inch pneumatic actuator.
Can the actuator be replaced without removing the valve body?
Yes, the direct-coupled bonnet allows for the pneumatic actuator to be serviced or replaced without breaking the pipe connections, reducing downtime for the technician.
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 257-02044 Valve Assembly is a contractor-grade solution for precise fluid control in commercial HVACR systems. Utilizing the Powermite 599 MT Series architecture, this 2-way normally open valve is engineered for high-performance regulation of hot or chilled water in terminal units like convectors and fin-tube radiators. The assembly features a 3/4" NPT forged brass body and internal brass trim, ensuring long-term durability in closed-loop hydronic applications. With a 6.3 Cv equal percentage flow characteristic, it provides stable modulating control even under varying pressure drops.
Driven by a 2-inch pneumatic actuator with a 3-8 PSI spring range, this unit facilitates seamless integration into existing pneumatic control architectures. The direct-coupled design allows for tool-free installation and maintenance, while the ANSI Class 250 rating supports demanding system pressures. This Siemens pneumatic control valve is a reliable choice for technicians requiring a drop-in replacement that maintains linear system response and protects against thermal shock in medium-temperature fluid applications.
Key Benefits- Maximum Flow Efficiency: The 6.3 Cv rating and modified equal percentage plug provide superior control for high-demand terminal units.
- Pneumatic Precision: The MT Series 2-inch actuator utilizes a standard 3-8 PSI range, making it compatible with most building automation pneumatic signals.
- Rugged Construction: Forged brass body and brass trim withstand fluid temperatures ranging from 35°F to 250°F.
- Simplified Installation: Features NPT threaded connections and a low-profile actuator design for tight mechanical spaces.
- Fail-Safe Operation: The normally open (NO) configuration ensures full flow upon loss of control air, preventing freezing in heating applications.
Is the 257-02044 suitable for steam applications?
While the brass body is robust, this specific 257 series configuration is optimized for chilled and hot water service. For high-pressure steam, verify seat material compatibility with the manufacturer’s technical data for the 599 series.
What is the maximum close-off pressure for this assembly?
This Siemens pneumatic valve assembly typically handles a close-off pressure of approximately 35 PSI when paired with the standard 2-inch pneumatic actuator.
Can the actuator be replaced without removing the valve body?
Yes, the direct-coupled bonnet allows for the pneumatic actuator to be serviced or replaced without breaking the pipe connections, reducing downtime for the technician.
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.
