
Model | Applications | Flow Capacity at 50 psig (3.45 barg) drop | Hot Water Outlet Connection Size |
215 | Individual point of use or groups of fixtures | 12 gpm (45 lpm) | 1/2″ (15 mm) |
320 | Groups of fixtures | 24 gpm (91 lpm) | 3/4″ (20 mm) |
320D | Groups of fixtures | 24 gpm (91 lpm) | 3/4″ (20 mm) |
320D-FMC-S | Groups of fixtures | 24 gpm (91 lpm) | 3/4″ (20 mm) |
425 | Groups of fixtures | 49 gpm (185 lpm) | 1-1/4″ (32 mm) |
425D | Groups of fixtures | 49 gpm (185 lpm) | 1″ (25 mm) |
425D-FMC-S | Groups of fixtures | 49 gpm (185 lpm) | 1″ (25 mm) |
Armstrong’s thermostatic mixing valves are designed specifically for use in non-return, “dead leg” applications.
The range of products provides accurate water temperature control for individual point of use and groups of fixtures in applications with diverse flow requirements.