Resideo VCZNB7400 Valve
The Resideo VCZNB7400 is an industrial-grade 1/2" NPT three-way hydronic valve engineered for precision control in closed-loop HVAC systems. Featuring a 2.7 Cv flow coefficient and a 60 psi close-off pressure rating, this balanced cartridge cage valve provides stable regulation for both chilled and hot water applications, including those with glycol concentrations up to 60%. The bronze body construction and stainless steel stem ensure long-term mechanical integrity, while the EPDM O-ring seals prevent internal bypass and external leakage. Designed with a stem-up-to-close A-port configuration, the VCZNB7400 is specifically intended for use with proportional non-fail-safe VC actuators, allowing for seamless integration into modulating hydronic control systems. This mixing/diverting valve utilizes a linear stroke to provide consistent performance across its entire range, making it a reliable choice for fan coil units and smaller reheat coils requiring high-cycle durability and accurate flow management.
Key Benefits- Enhanced Durability: The bronze housing and stainless steel internal trim resist corrosion in high-glycol or variable temperature hydronic loops.
- Precision Control: The pressure-balanced cartridge design allows the actuator to maintain control even under high differential pressures.
- Field Serviceable: The internal cartridge cage can be replaced without removing the valve body from the piping, reducing downtime for contractors.
- Application Versatility: Suitable for both mixing and diverting configurations within a wide thermal range.
Is the VCZNB7400 compatible with fail-safe actuators?
No, this specific model is designed for use with proportional non-fail-safe VC series actuators. Always verify the stroke and signal type of your actuator before installation.
Can this valve be used in steam applications?
The VCZNB7400 is rated for hot and chilled water with glycol additives. It is not rated for steam service due to the EPDM seal and bronze body temperature limits.
Which port closes when the stem is in the up position?
In this stem-up-to-close A-port configuration, the A-port is sealed when the stem is fully extended upward, directing flow through the bypass or B-port.
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: $118.30
-65%$118.30
$41.40Resideo VCZNB7400 Valve
The Resideo VCZNB7400 is an industrial-grade 1/2" NPT three-way hydronic valve engineered for precision control in closed-loop HVAC systems. Featuring a 2.7 Cv flow coefficient and a 60 psi close-off pressure rating, this balanced cartridge cage valve provides stable regulation for both chilled and hot water applications, including those with glycol concentrations up to 60%. The bronze body construction and stainless steel stem ensure long-term mechanical integrity, while the EPDM O-ring seals prevent internal bypass and external leakage. Designed with a stem-up-to-close A-port configuration, the VCZNB7400 is specifically intended for use with proportional non-fail-safe VC actuators, allowing for seamless integration into modulating hydronic control systems. This mixing/diverting valve utilizes a linear stroke to provide consistent performance across its entire range, making it a reliable choice for fan coil units and smaller reheat coils requiring high-cycle durability and accurate flow management.
Key Benefits- Enhanced Durability: The bronze housing and stainless steel internal trim resist corrosion in high-glycol or variable temperature hydronic loops.
- Precision Control: The pressure-balanced cartridge design allows the actuator to maintain control even under high differential pressures.
- Field Serviceable: The internal cartridge cage can be replaced without removing the valve body from the piping, reducing downtime for contractors.
- Application Versatility: Suitable for both mixing and diverting configurations within a wide thermal range.
Is the VCZNB7400 compatible with fail-safe actuators?
No, this specific model is designed for use with proportional non-fail-safe VC series actuators. Always verify the stroke and signal type of your actuator before installation.
Can this valve be used in steam applications?
The VCZNB7400 is rated for hot and chilled water with glycol additives. It is not rated for steam service due to the EPDM seal and bronze body temperature limits.
Which port closes when the stem is in the up position?
In this stem-up-to-close A-port configuration, the A-port is sealed when the stem is fully extended upward, directing flow through the bypass or B-port.
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 Resideo VCZNB7400 is an industrial-grade 1/2" NPT three-way hydronic valve engineered for precision control in closed-loop HVAC systems. Featuring a 2.7 Cv flow coefficient and a 60 psi close-off pressure rating, this balanced cartridge cage valve provides stable regulation for both chilled and hot water applications, including those with glycol concentrations up to 60%. The bronze body construction and stainless steel stem ensure long-term mechanical integrity, while the EPDM O-ring seals prevent internal bypass and external leakage. Designed with a stem-up-to-close A-port configuration, the VCZNB7400 is specifically intended for use with proportional non-fail-safe VC actuators, allowing for seamless integration into modulating hydronic control systems. This mixing/diverting valve utilizes a linear stroke to provide consistent performance across its entire range, making it a reliable choice for fan coil units and smaller reheat coils requiring high-cycle durability and accurate flow management.
Key Benefits- Enhanced Durability: The bronze housing and stainless steel internal trim resist corrosion in high-glycol or variable temperature hydronic loops.
- Precision Control: The pressure-balanced cartridge design allows the actuator to maintain control even under high differential pressures.
- Field Serviceable: The internal cartridge cage can be replaced without removing the valve body from the piping, reducing downtime for contractors.
- Application Versatility: Suitable for both mixing and diverting configurations within a wide thermal range.
Is the VCZNB7400 compatible with fail-safe actuators?
No, this specific model is designed for use with proportional non-fail-safe VC series actuators. Always verify the stroke and signal type of your actuator before installation.
Can this valve be used in steam applications?
The VCZNB7400 is rated for hot and chilled water with glycol additives. It is not rated for steam service due to the EPDM seal and bronze body temperature limits.
Which port closes when the stem is in the up position?
In this stem-up-to-close A-port configuration, the A-port is sealed when the stem is fully extended upward, directing flow through the bypass or B-port.
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.
