Siemens Building Technology 658-0051 Valve
The Siemens Building Technology 658-0051 is a professional-grade 3-way sequencing valve engineered for precision modulation in 4-pipe HVAC systems. With a 1/2-inch flare connection and a 2.5 Cv flow coefficient, this Powertop series valve is designed to manage hot and chilled water flow to radiant panels and induction units without mixing. The equal percentage flow characteristic ensures linear thermal output, providing tight control over terminal unit performance. Built with a stainless steel stem and a large diaphragm area, the assembly offers superior close-off ratings up to 50 psi and handles media temperatures reaching 250°F. The normally open spring return action ensures a fail-safe position during power loss, while the removable actuator facilitates rapid field service. This HVAC sequencing valve is a critical component for technicians requiring reliable, "no-mix" changeover capabilities in commercial hydronic applications.
Key Benefits- Precision Sequencing: Dual-inlet, single-outlet design allows for seamless transition between heating and cooling stages in 4-pipe systems.
- Heavy-Duty Construction: Features a stainless steel valve stem and rugged Powertop actuator to resist corrosion and electrolytic action.
- Field Serviceability: The actuator is fully removable and can be rotated to accommodate various piping configurations in tight mechanical spaces.
- Optimized Control: The large diaphragm design ensures high accuracy and a tight close-off, reducing energy waste and bypass leakage.
- What is the primary application for the 658-0051? It is specifically used for radiant panel control and induction units where hot and chilled water must be sequenced without cross-contamination.
- What type of connections does this valve use? This model features 1/2" flare connections for secure, leak-free integration into copper hydronic lines.
- Is the actuator fail-safe? Yes, the unit utilizes a normally open spring return mechanism to ensure the valve remains open upon signal failure.
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 658-0051 Valve
The Siemens Building Technology 658-0051 is a professional-grade 3-way sequencing valve engineered for precision modulation in 4-pipe HVAC systems. With a 1/2-inch flare connection and a 2.5 Cv flow coefficient, this Powertop series valve is designed to manage hot and chilled water flow to radiant panels and induction units without mixing. The equal percentage flow characteristic ensures linear thermal output, providing tight control over terminal unit performance. Built with a stainless steel stem and a large diaphragm area, the assembly offers superior close-off ratings up to 50 psi and handles media temperatures reaching 250°F. The normally open spring return action ensures a fail-safe position during power loss, while the removable actuator facilitates rapid field service. This HVAC sequencing valve is a critical component for technicians requiring reliable, "no-mix" changeover capabilities in commercial hydronic applications.
Key Benefits- Precision Sequencing: Dual-inlet, single-outlet design allows for seamless transition between heating and cooling stages in 4-pipe systems.
- Heavy-Duty Construction: Features a stainless steel valve stem and rugged Powertop actuator to resist corrosion and electrolytic action.
- Field Serviceability: The actuator is fully removable and can be rotated to accommodate various piping configurations in tight mechanical spaces.
- Optimized Control: The large diaphragm design ensures high accuracy and a tight close-off, reducing energy waste and bypass leakage.
- What is the primary application for the 658-0051? It is specifically used for radiant panel control and induction units where hot and chilled water must be sequenced without cross-contamination.
- What type of connections does this valve use? This model features 1/2" flare connections for secure, leak-free integration into copper hydronic lines.
- Is the actuator fail-safe? Yes, the unit utilizes a normally open spring return mechanism to ensure the valve remains open upon signal failure.
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
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Shipping & Returns
Description
The Siemens Building Technology 658-0051 is a professional-grade 3-way sequencing valve engineered for precision modulation in 4-pipe HVAC systems. With a 1/2-inch flare connection and a 2.5 Cv flow coefficient, this Powertop series valve is designed to manage hot and chilled water flow to radiant panels and induction units without mixing. The equal percentage flow characteristic ensures linear thermal output, providing tight control over terminal unit performance. Built with a stainless steel stem and a large diaphragm area, the assembly offers superior close-off ratings up to 50 psi and handles media temperatures reaching 250°F. The normally open spring return action ensures a fail-safe position during power loss, while the removable actuator facilitates rapid field service. This HVAC sequencing valve is a critical component for technicians requiring reliable, "no-mix" changeover capabilities in commercial hydronic applications.
Key Benefits- Precision Sequencing: Dual-inlet, single-outlet design allows for seamless transition between heating and cooling stages in 4-pipe systems.
- Heavy-Duty Construction: Features a stainless steel valve stem and rugged Powertop actuator to resist corrosion and electrolytic action.
- Field Serviceability: The actuator is fully removable and can be rotated to accommodate various piping configurations in tight mechanical spaces.
- Optimized Control: The large diaphragm design ensures high accuracy and a tight close-off, reducing energy waste and bypass leakage.
- What is the primary application for the 658-0051? It is specifically used for radiant panel control and induction units where hot and chilled water must be sequenced without cross-contamination.
- What type of connections does this valve use? This model features 1/2" flare connections for secure, leak-free integration into copper hydronic lines.
- Is the actuator fail-safe? Yes, the unit utilizes a normally open spring return mechanism to ensure the valve remains open upon signal failure.
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.
