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HVAC

HVAC is a brand specializing in control ball valves for heating, ventilation, and air conditioning systems. The product line focuses on 2-way and 3-way ball valves designed for modulating or on-off control of water, steam, and water-glycol solutions in commercial and industrial HVAC applications. Valves are available with NPT threaded, flanged, or sweat connection types, covering sizes from 1/2 inch to 2 1/2 inches. Construction typically features a stainless steel ball and a brass body, with flow coefficients (Cv) ranging from 1.2 to 117 and close-off pressure ratings up to 200 psi. The valves are supplied without actuators, allowing integration with third-party or system-specific actuation. 3G Electric stocks a range of HVAC control ball valves, including models for steam service and water-glycol mixtures up to 50%. The brand's specifications—such as Cv values, bypass Cv for 3-way configurations, and close-off ratings—provide engineers and procurement specialists with the data needed to select valves for precise flow control in hydronic systems, chiller plants, and boiler applications. All listed valves are rated for water or steam media, with body materials and seals suitable for typical HVAC operating temperatures and pressures. 3G Electric supports global procurement by offering these valves with detailed technical specifications, enabling direct comparison and selection without reliance on marketing claims.

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About HVAC

HVAC is a brand specializing in control ball valves for heating, ventilation, and air conditioning systems. The product line focuses on 2-way and 3-way ball valves designed for modulating or on-off control of water, steam, and water-glycol solutions in commercial and industrial HVAC applications. Valves are available with NPT threaded, flanged, or sweat connection types, covering sizes from 1/2 inch to 2 1/2 inches. Construction typically features a stainless steel ball and a brass body, with flow coefficients (Cv) ranging from 1.2 to 117 and close-off pressure ratings up to 200 psi. The valves are supplied without actuators, allowing integration with third-party or system-specific actuation. 3G Electric stocks a range of HVAC control ball valves, including models for steam service and water-glycol mixtures up to 50%. The brand's specifications—such as Cv values, bypass Cv for 3-way configurations, and close-off ratings—provide engineers and procurement specialists with the data needed to select valves for precise flow control in hydronic systems, chiller plants, and boiler applications. All listed valves are rated for water or steam media, with body materials and seals suitable for typical HVAC operating temperatures and pressures. 3G Electric supports global procurement by offering these valves with detailed technical specifications, enabling direct comparison and selection without reliance on marketing claims.

Common Applications

  • Hydronic heating systems — HVAC 2-way NPT ball valves (e.g., VG1245CN) for zone control in hot water loops
  • Chiller plant cooling — HVAC 3-way flanged ball valves (e.g., VG18A5GU) for bypass and mixing in condenser water circuits
  • Steam distribution — HVAC 2-way NPT ball valves (e.g., VG1245CN) for on-off control in low-pressure steam lines
  • Water-glycol thermal storage — HVAC 2-way NPT ball valves (e.g., 599-10327S) for flow regulation in glycol-based systems
  • Fan coil unit control — HVAC 3-way sweat connection ball valves (e.g., VG1875CP) for modulating water flow in terminal units

Frequently asked questions

Common questions about HVAC from 3G Electric.

What media types are HVAC control ball valves rated for?

HVAC control ball valves are primarily rated for water, steam, and water-glycol solutions up to 50% concentration. Specific models, such as the VG1845AD, are designed for steam service, while others like the 599-10327S are specified for water-glycol mixtures. Always verify the media compatibility with the valve's body and seal materials before installation.

Do HVAC ball valves come with actuators?

The HVAC control ball valves stocked by 3G Electric are supplied without actuators. They are designed for field installation of compatible actuators, allowing customization for specific control systems. The valves feature standard mounting patterns and stem configurations to accommodate common actuator brands.

What is the close-off pressure rating for HVAC 2-way ball valves?

Many HVAC 2-way ball valves, such as the VG1245FS and 599-10329S, have a close-off pressure rating of 200 psi. This rating indicates the maximum differential pressure the valve can shut off against when properly actuated. Always confirm the close-off rating for the specific model and actuator combination.

What connection types are available for HVAC 3-way ball valves?

HVAC 3-way ball valves are available in NPT threaded, flanged, and sweat connection types. For example, the VG18A5GU uses a 2 1/2 inch flanged connection, while the VG1845AD has 1/2 inch female NPT threads, and the VG1875CP uses a 1 inch sweat connection. Selection depends on piping system requirements.

How do I interpret the Cv flow values for HVAC 3-way ball valves?

HVAC 3-way ball valves list two Cv values: the main flow Cv and the bypass Cv. For instance, the VG18A5GU has a main Cv of 117 and a bypass Cv of 74. The main Cv applies to the primary flow path, while the bypass Cv is for the alternate port. These values help calculate pressure drop and flow rates in mixing or diverting applications.

Does 3G Electric supply HVAC products?

Yes — 3G Electric (S) Pte. Ltd. supplies HVAC products. We stock the HVAC catalog and supply genuine factory-original products with full manufacturer warranty and technical support.