Siemens Building Technology 257-02069B Valve Assembly
The Siemens Building Technology 257-02069B Valve Assembly is a high-performance solution for precise temperature regulation in terminal unit applications, such as fan coils and convectors. This 1/2 inch NPT 3-way mixing valve features a robust forged brass body with brass trim, engineered to handle the rigorous demands of commercial HVAC systems. Utilizing the Powermite 599 MT Series architecture, this assembly delivers a 4.0 Cv linear flow characteristic, ensuring consistent control of hot or chilled water media. The integrated 2-inch pneumatic actuator operates within a specific 3-8 PSI spring range, allowing for reliable modulating control and tight shut-off performance. Designed to meet ANSI Class 250 pressure standards, this normally open assembly is a staple for technicians requiring dependable pneumatic valve automation. Its direct-coupled design simplifies field installation, while the high rangeability (exceeding 100:1) provides the accurate mixing necessary for maintaining strict setpoint tolerances in complex hydronic circuits.
Key Benefits- Precise Hydronic Mixing: The 3-way mixing configuration and linear flow characteristic ensure stable water temperature control without hunting.
- Industrial Strength: The ANSI Class 250 rating and forged brass construction provide the durability needed for high-pressure terminal unit systems.
- Efficient Actuation: The 3-8 PSI spring range is optimized for standard pneumatic control signals, facilitating easy integration with existing building automation.
- Serviceable Design: Features an EPDM O-ring packing and a stainless steel stem to minimize maintenance requirements and prevent leaks.
Is the Siemens 257-02069B suitable for steam applications?
No, this specific brass-trimmed MT Series valve is designed for hot and chilled water applications with a medium temperature range of 35°F to 250°F. Using it for steam can degrade the internal seals.
How do I verify the fail-safe position of this assembly?
This assembly is typically configured as normally open. In the event of control air loss, the pneumatic actuator spring returns the valve to its default state to maintain flow through the bypass or coil, depending on your piping layout.
Can I install this valve in a plenum space?
Yes, the Siemens Powermite 599 series components are UL listed for plenum installations, making them ideal for ceiling-mounted fan coil units and induction units.
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.
Siemens Building Technology 257-02069B Valve Assembly
The Siemens Building Technology 257-02069B Valve Assembly is a high-performance solution for precise temperature regulation in terminal unit applications, such as fan coils and convectors. This 1/2 inch NPT 3-way mixing valve features a robust forged brass body with brass trim, engineered to handle the rigorous demands of commercial HVAC systems. Utilizing the Powermite 599 MT Series architecture, this assembly delivers a 4.0 Cv linear flow characteristic, ensuring consistent control of hot or chilled water media. The integrated 2-inch pneumatic actuator operates within a specific 3-8 PSI spring range, allowing for reliable modulating control and tight shut-off performance. Designed to meet ANSI Class 250 pressure standards, this normally open assembly is a staple for technicians requiring dependable pneumatic valve automation. Its direct-coupled design simplifies field installation, while the high rangeability (exceeding 100:1) provides the accurate mixing necessary for maintaining strict setpoint tolerances in complex hydronic circuits.
Key Benefits- Precise Hydronic Mixing: The 3-way mixing configuration and linear flow characteristic ensure stable water temperature control without hunting.
- Industrial Strength: The ANSI Class 250 rating and forged brass construction provide the durability needed for high-pressure terminal unit systems.
- Efficient Actuation: The 3-8 PSI spring range is optimized for standard pneumatic control signals, facilitating easy integration with existing building automation.
- Serviceable Design: Features an EPDM O-ring packing and a stainless steel stem to minimize maintenance requirements and prevent leaks.
Is the Siemens 257-02069B suitable for steam applications?
No, this specific brass-trimmed MT Series valve is designed for hot and chilled water applications with a medium temperature range of 35°F to 250°F. Using it for steam can degrade the internal seals.
How do I verify the fail-safe position of this assembly?
This assembly is typically configured as normally open. In the event of control air loss, the pneumatic actuator spring returns the valve to its default state to maintain flow through the bypass or coil, depending on your piping layout.
Can I install this valve in a plenum space?
Yes, the Siemens Powermite 599 series components are UL listed for plenum installations, making them ideal for ceiling-mounted fan coil units and induction units.
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 257-02069B Valve Assembly is a high-performance solution for precise temperature regulation in terminal unit applications, such as fan coils and convectors. This 1/2 inch NPT 3-way mixing valve features a robust forged brass body with brass trim, engineered to handle the rigorous demands of commercial HVAC systems. Utilizing the Powermite 599 MT Series architecture, this assembly delivers a 4.0 Cv linear flow characteristic, ensuring consistent control of hot or chilled water media. The integrated 2-inch pneumatic actuator operates within a specific 3-8 PSI spring range, allowing for reliable modulating control and tight shut-off performance. Designed to meet ANSI Class 250 pressure standards, this normally open assembly is a staple for technicians requiring dependable pneumatic valve automation. Its direct-coupled design simplifies field installation, while the high rangeability (exceeding 100:1) provides the accurate mixing necessary for maintaining strict setpoint tolerances in complex hydronic circuits.
Key Benefits- Precise Hydronic Mixing: The 3-way mixing configuration and linear flow characteristic ensure stable water temperature control without hunting.
- Industrial Strength: The ANSI Class 250 rating and forged brass construction provide the durability needed for high-pressure terminal unit systems.
- Efficient Actuation: The 3-8 PSI spring range is optimized for standard pneumatic control signals, facilitating easy integration with existing building automation.
- Serviceable Design: Features an EPDM O-ring packing and a stainless steel stem to minimize maintenance requirements and prevent leaks.
Is the Siemens 257-02069B suitable for steam applications?
No, this specific brass-trimmed MT Series valve is designed for hot and chilled water applications with a medium temperature range of 35°F to 250°F. Using it for steam can degrade the internal seals.
How do I verify the fail-safe position of this assembly?
This assembly is typically configured as normally open. In the event of control air loss, the pneumatic actuator spring returns the valve to its default state to maintain flow through the bypass or coil, depending on your piping layout.
Can I install this valve in a plenum space?
Yes, the Siemens Powermite 599 series components are UL listed for plenum installations, making them ideal for ceiling-mounted fan coil units and induction units.
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.
