Grundfos 579801 Cast Iron 4-Bolt Pump Flange Set, 4" Threaded (Pair)

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Grundfos 579801 Cast Iron 4-Bolt Pump Flange Set, 4" Threaded (Pair)

Name: Grundfos 579801 Cast Iron 4-Bolt Pump Flange Set, 4" Threaded (Pair)
Brand: Grundfos
SKU: GRUN-579801
Price: 453.99 USD
Availability: InStock

GrundfosSKU: GRUN-579801

Price:

$453.99

Stock:

Re-stocking soon

Quantity:

Special order — typically ships in 1–3 weeks.
Contact us for an exact lead time.

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Shipping details

Shipping weight: 31.6 lb
Box size: 9.12 × 9.12 × 1.5 in

Connection Size	1-1/2"
Material	Cast Iron
Type	Flange Kit

The Grundfos 579801 is a pair of cast iron 4-bolt pump flanges with 4" threaded connections, used to connect a large flanged circulator to threaded pipe.

Each flange threads onto the pipe and bolts to the pump's 4-bolt flange, so the pump can be removed for service without cutting the piping. Cast iron flanges are normally used on closed-loop hydronic heating and cooling systems.

Before ordering: confirm that your pump has a 4-bolt flange pattern that matches this 4" set and that your pipe is 4" threaded. Check the pump documentation for the correct gaskets and bolts.