Three-Way Globe Valve Mixing Type

The Supreme Valves three-way globe valve mixing type is engineered for precise flow mixing in HVAC systems, district heating plants, and industrial process control applications. Designed as a direct replacement for Siemens VVF47.65 valves, this 2-1/2 inch valve features a robust Carbon Steel A216 WCB body with Stainless Steel SS316 trim for durability and corrosion resistance in demanding environments.

The modulating design enables infinite adjustment of the mixing ratio between two inlet streams, providing precise temperature or pressure control. Compatible with standard modulating actuators including Siemens SBX61, Belimo, and Johnson Controls, the valve integrates seamlessly into existing building management systems across Saudi Arabian commercial and industrial facilities.

Key Applications

• HVAC Central Plants
• District Heating Systems
• Chiller Plant Control
• Industrial Process Mixing
• Boiler Feed Water Control

Body & Bonnet

• Carbon Steel ASTM A216 WCB
• Excellent strength at elevated temperatures
• Suitable for steam and hot water service

Valve Trim (Internal)

• Seat: SS316
• Disc: SS316
• Stem: SS316
• Guide Bushing: SS316

Packing & Seals

• Stem Packing: Graphite Braided
• Gasket: Spiral Wound SS316/Graphite
• Actuator Gasket: Rubber

What is a three-way globe valve mixing type and how does it work?

A three-way globe valve mixing type has three ports: two inlet ports (A and B) and one outlet port (AB). The valve mixes flow from two different sources into a single outlet stream. The valve position determines the ratio of flow between the two inlets, allowing precise temperature or pressure control in HVAC systems, district heating, and industrial process applications. When used with a modulating actuator like the SBX61, the valve provides infinite control of the mixing ratio.

Is this valve a direct replacement for Siemens VVF47.65?

Yes, our three-way globe valve mixing type is designed as a direct replacement for the Siemens VVF47.65. It matches the standard DIN and ISO mounting dimensions for actuator compatibility, including the SBX61 modulating actuator. The flange drilling follows ASME B16.5 Class 150 standards, making it interchangeable with European-designed valves in existing installations across Saudi Arabia and the Middle East.

What is the difference between mixing and diverting three-way valves?

A mixing valve combines two separate inlet streams (A and B) into one outlet (AB), used in applications like blending hot and cold water for precise temperature control. A diverting valve takes one inlet and splits flow between two outlets (A and B), used for applications like bypassing or distributing flow. Our three-way globe valves are configured for mixing applications, which are most common in HVAC and district heating systems.

What actuator is compatible with this three-way globe valve?

The valve is compatible with standard modulating actuators including Siemens SBX61 and equivalent models from Belimo, Johnson Controls, and Honeywell. The valve stem features ISO 5211 actuator mounting dimensions for easy actuator attachment. Spring-return (fail-safe) and non-spring-return configurations are available. For Saudi Arabian HVAC projects, we offer complete valve-actuator assemblies pre-calibrated and tested per project specifications.

What is the flow coefficient (Cv) of a 2-1/2 inch three-way globe valve?

The 2-1/2 inch (DN65) three-way globe valve has a typical Cv value of 28-35 depending on the port configuration and trim. This high Cv ensures minimal pressure drop in HVAC and process applications. For precise flow calculation in your specific application, contact our technical team with your system parameters (flow rate, pressure differential, and fluid properties).

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