- Catalog
- Find A Branch
- KeepStock
- Help
- 1-800-GRAINGER
Register
Sign In
Sign In to access your account information.
Sign In Register for Grainger.comOrder Lookup
Track and check the status of an order.
Order LookupAll Products
Unrelated Links
Product Categories
- All Product Categories
- Abrasives
- Adhesives, Sealants and Tape
- Cleaning and Janitorial
- Electrical
- Electronics & Batteries
- Fasteners
- Fleet & Vehicle Maintenance
- Furnishings, Appliances & Hospitality
- HVAC and Refrigeration
- Hardware
- Hydraulics
- Lab Supplies
- Lighting
- Lubrication
- Machining
- Material Handling
- Motors
- Office Supplies
- Outdoor Equipment
- Packaging & Shipping
- Paints, Equipment and Supplies
- Pipe, Hose, Tube & Fittings
- Plumbing
- Pneumatics
- Power Transmission
- Pumps
- Raw Materials
- Reference and Learning Supplies
- Safety
- Security
- Test Instruments
- Tools
- Welding
Sign In
Sign In to access your account information.
Sign In Register for Grainger.comOrder Lookup
Track and check the status of an order.
Order LookupCirculating Pumps, Flanges, Unions & Controls
Available523 products
Circulating pumps move water through pipe systems to deliver hot water to faucets and shower heads, or to provide radiant heat to floors and radiators. They conserve water by delivering hot water faster than gravity-fed systems. Potable circulating pumps operate in an open loop system where drinkable water exits the pipes for use. Hydronic circulating pumps operate in a closed loop system where the water recirculates continuously within the pipes to deliver radiant heat. Flanges and unions are used to mount pumps inline into pipes, and controls provide adjustments to water temperature and the operating duration of the pump. Repair parts and kits match to the compatible brand, series, and manufacturer number of the pump.