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**Product Name:** Honeywell Building Three-way Valve DR150GFLA
**Product Type:** Motorized Three-way Mixing/Diverting Valve for Building Automation Systems
**Primary Function:** Designed for precise control of water flow in commercial HVAC systems, including heating, cooling, and district energy applications. It can function as a mixing valve (two inlets, one outlet) or a diverting valve (one inlet, two outlets) to regulate fluid temperature or flow distribution.
**Key Technical Parameters:**
* **Valve Body Type:** Flanged connection, typically conforming to standard industrial dimensions (e.g., ANSI, DIN).
* **Actuator Type:** Electronic Modulating Actuator (spring-return or non-spring return options are typically available). Integrates seamlessly with building management systems (BMS).
* **Control Signal:** Standard analog inputs (0-10V DC or 4-20mA) for proportional modulation. May support digital communication protocols (e.g., BACnet MS/TP, Modbus) depending on the specific actuator model ordered.
* **Flow Characteristic:** Equal percentage or linear, optimized for stable control in hydronic systems.
* **Valve Body Material:** Typically ductile iron or cast steel, suitable for a wide range of water and glycol solutions.
* **Seat & Plug:** Stainless steel or hardened alloy for durability and tight shut-off capability.
* **Pressure Rating:** Standard ratings include PN16/Class 125 or PN25/Class 150, suitable for most building system pressures.
* **Temperature Range:** Operating fluid temperature range typically from -20°C to 150°C (-4°F to 302°F), depending on seal materials.
* **Leakage Class:** Class IV (or better) shut-off according to industry standards (e.g., EN 12266-1).
* **Media:** Hot or chilled water, low-pressure steam, and glycol mixtures.
**General Description:**
The Honeywell DR150GFLA is a robust, flanged three-way control valve engineered for reliability and precision in large commercial and institutional HVAC applications. Its core purpose is to automate and optimize thermal energy distribution, contributing to system efficiency and occupant comfort.
The valve operates via a high-performance electronic actuator that receives control signals from a system controller. This allows for precise angular positioning of the valve plug, modulating flow between ports to maintain setpoints for temperature, pressure
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