Backflow Preventers

Caleffi 573002A AutoFill Combo 1/2 inch Female Automatic Water Boiler Feed with Backflow Preventer

Parts

Viessmann 7134 743 1 inch FIPS Three Way Mixing Valve

Viessmann 7498 530 Model 120/80 Low Loss Header with Insulation

Viessmann Manufacturing® 7498529 80/60 Series Low Loss Header With Insulation, 19.5 gpm Flow Rate

Viessmann 7179 488 Immersion Temperature Sensor #5

Viessmann 7179 114 Immersion Temperature Sensor #5

Circulator Flanges

Red and White 2417-3/4 Brass 3/4 inch Female Circulator Full Port Ball Valve Rotating Flange with Nuts and Bolts

Circulator Pumps

Grundfos 59896343 UPS15-58-FRC Cast Iron 115 Volt 1/25 Horsepower Three Speed Circulator with Integral Check Valve and Rotated Flange Position less Flanges

Grundfos 52722512 UPS26-99-FC Cast Iron 115 Volt 1/6 Horsepower Three Speed Circulator with Integral Check Valve less Flanges