1/2" FNPT x 1/2" Union FNPT Combination Boiler Feed Valve (Pressure Reducing w/ Pressure Relief) & Backflow Preventer
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          Taco 3450 cartridge style fill valve combines pressure regulating valve, dual check backflow preventer and a pressure relief valve (atmospheric vent) into a one-piece design - simply dial the pressure setting and connect the pipes. Ideal for typical radiant heat and baseboard/radiator hot water heating systems. Both backflow and pressure reducing cartridge can be serviced or replaced without shutting off water supply.
Technical Specifications:
Features:
                                    Technical Specifications:
- Max Inlet Pressure: 150 psi
 - Min Delta Pressure (Inlet to Outlet): 15 psi
 - Recommended Setting Range: 10 - 50 psi
 - Factory Setting: 12 psi
 - Adjustment Capacity: 8.5 - 65 psi
 - Max Flow Rate: 25 gpm
 - Max Temperature: 210°F
 - Max Inlet Pressure: 150 psi.
 
Features:
- Easy pressure dial with large adjustment range
 - Replaceable and serviceable cartridge for both the backflow and pressure regulator - without draining the system
 - Auto-reset from fast fill mode
 - Adjustable 360° view of pressure indicator
 - ASSE 1081-2014 compliant
 - Compact, one-piece body construction.
 
| Product Specs | |
| Connections | FNPT x FNPT | 
| Max Inlet Pressure | 150 psi | 
| Max Temperature | 210F | 
| Product Type | Boiler Fill & Backflow Valve Combo | 
| Size1 | 1/2" | 



















































































































































































































                        
                        
                        
                        
                        
                        




