Taco 1/2" Red Bronze Combo Expansion Reservoir Drain Valve
Taco 1/2" Red Bronze Combo Expansion Reservoir Drain Valve
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The Taco Comfort Solutions® 1/2" Red Bronze Combo Expansion Reservoir Drain Valve is a commercial-grade, multi-functional hydronic trim component engineered to streamline closed-loop infrastructure maintenance. Combining an isolation gate layout and a dedicated system purge drain port into a single, unified red bronze casting, this space-saving valve allows technicians to isolate compression or diaphragm expansion tanks for service, recharging, or complete replacement without draining down the entire building's heating loop.
Key Performance Features:
- Premium Red Bronze Construction: Forged from high-grade red bronze alloy to offer superior structural resilience, lifetime scale resistance, and complete immunity to dezincification compared to standard brass fittings.
- Integrated Dual-Purpose System Flow: Combines a clean inline isolation block with a right-angle 3/4" male hose thread (MHT) drain tap, making expansion tank blowout and air recharge protocols fast and mess-free.
- Heavy-Duty Control Packing: Designed with an adjustable stuffing box packing gland and a rugged metallic handwheel to ensure drip-tight structural integrity under continuous thermal cycling.
Application Profile: Perfectly engineered to connect directly beneath overhead compression reservoirs or inline thermal expansion tanks on boiler loops, commercial radiant mains, and multi-zone hydronic grids.
| Inlet Connection Size | 1/2" Female NPT Pipe Threads |
| Drain Port Connection | 3/4" Male Garden Hose Thread (GHT/MHT) |
| Casing Body Alloy | Heavy-Duty Cast Red Bronze |
| Maximum Static Pressure | 125 PSI (862 kPa) |
| Maximum Fluid Temperature | 240°F (115°C) |
| System Compatibility | Closed-Loop Hydronic Heating & Non-Potable Chilled Systems |
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Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
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