Siemens Building Technology 599-03206 Valve

The Siemens 599-03206 is a robust 3-way mixing valve designed for high-demand hydronic applications. Featuring a 2-inch NPT connection and a 40 Cv flow capacity, this globe valve handles water and 50% glycol solutions with precision. Built with a heavy-duty bronze body and brass trim, it offers exceptional durability for commercial piping systems. This model is a direct drop-in replacement for the DG2-3-40, ensuring seamless integration into existing layouts without re-piping. Engineered for modulating control, the 599-03206 utilizes a 3/4-inch stroke to interface with various Siemens Flowrite actuators, both pneumatic and electronic. Its direct-coupled universal bonnet simplifies field installation, while the ANSI Class 250 rating and Class IV leakage protection (0.01% of Cv) ensure system efficiency. The valve provides an equal percentage characteristic for the normally closed port and a linear characteristic for the normally open port, maintaining stable mixing performance across a wide 20°F to 250°F temperature range.

• High Versatility: Fully compatible with pneumatic or electronic Flowrite actuators with a 3/4-inch stroke.
• Precise Mixing: Excellent rangeability (>100:1) allows for fine-tuned control in varying load conditions.
• Simple Serviceability: Features cartridge-type packing and metal-to-metal seating for long-term reliability in harsh HVACR environments.
• Direct Replacement: Identical specifications to the DG2-3-40 for fast field swaps.

Is the 599-03206 suitable for steam applications?
No, this specific 599 series body is rated for water and water-glycol mixtures up to 250°F. For steam service, a stainless steel trim or a different series may be required.

Can this valve be used for diverting applications?
This is a mixing valve, meaning it is designed with two inlets and one outlet. For diverting configurations (one inlet, two outlets), a specific diverting valve or different piping arrangement is necessary to prevent chatter or premature wear.

What is the maximum differential pressure for this brass trim model?
For modulating water service, the recommended maximum differential pressure for bronze and brass trim is 25 psi to ensure quiet operation and prevent cavitation.

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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.