We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Grundfos Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 20 gpm - Intelligent Inline Circulator Pumps
GrundfosIntelligent Inline Circulator Pumps

Grundfos Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 20 gpm

The Grundfos Intelligent Inline Circulator Pump (SKU 3G-OTH-84411, MPN 98126821) is a standard-efficiency, variable-speed pump designed for potable water systems. It features a 1/4 hp motor, 115/230V AC nameplate…

SKU 3G-OTH-84411

Brand
Grundfos
Item
Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 20 gpm
Category
Intelligent Inline Circulator Pumps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Grundfos
Manufacturer Part Number
98126821
Type
Stainless Steel, Variable, 20 gpm, Inline
AC
115/230V
Max. Head
20 ft
Efficiency
Standard Efficiency
System Type
Potable Water
Connection Type
Flange
Includes Volute
Volute Included
Nameplate Voltage
115/230V AC

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Grundfos Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Grundfos Intelligent Inline Circulator Pump (SKU 3G-OTH-84411, MPN 98126821) is a standard-efficiency, variable-speed pump designed for potable water systems. It features a 1/4 hp motor, 115/230V AC nameplate voltage, and delivers 20 gpm at 20 ft max head. The pump includes a volute and uses flange connections, with a stainless steel construction.

Frequently Asked Questions

What is the Grundfos 98126821 circulating pump used for?

The Grundfos 98126821 is an intelligent inline circulator pump designed for potable water systems. It circulates water in commercial or residential hydronic heating and domestic water loops, providing variable-speed flow up to 20 gpm at 20 ft max head.

What are the specifications of the Grundfos 98126821 pump?

This Grundfos pump has a 1/4 hp motor, 115/230V AC nameplate voltage, and delivers 20 gpm at 20 ft max head. It features stainless steel construction, flange connections, a volute, and standard efficiency. The MPN is 98126821 and SKU is 856AM7.

Where to buy the Grundfos 98126821 pump worldwide?

3G Electric supplies the Grundfos 98126821 pump worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the Grundfos inline circulator pump?

Install the Grundfos inline circulator pump with flange connections aligned to pipework, ensuring proper support. Wire the 115/230V AC motor per local codes, set variable-speed control for system demand, and purge air before startup. Always follow Grundfos installation manuals.

Used in

Common applications for Grundfos
HVAC — Grundfos SI-30 condensate pump for air-conditioning installations up to 20 kW capacity
Industrial heating — GPS130NW pressure and suction units in oil burner fuel-supply circuits
Equipment maintenance — SUNP0400 charging and washing pump for descaling boilers and industrial equipment
Fuel accounting — VZO15 and VZO20 oil meters for flow measurement and consumption monitoring in oil-supply systems
Closed-loop heating systems — Double-acting expansion tank pump for pressure regulation and thermal stability
Building services — Grundfos pump range supporting HVAC, domestic heating, and pressure-boosting applications

Grundfos Products

3G Electric supplies Grundfos intelligent inline circulator pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Pump Accessories Valves & Regulation Motors & Drives All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 23 gpm, 20 ft Max. Head, Inline (MPN 98126822)
Grundfos
Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 23 gpm, 20 ft Max. Head, Inline (MPN 98126822)
Circulating Pump: 1/4 hp HP, 115/230V AC, Cast Iron, Variable, 23 gpm, 20 ft Max. Head, Inline (MPN 98126820)
Grundfos
Circulating Pump: 1/4 hp HP, 115/230V AC, Cast Iron, Variable, 23 gpm, 20 ft Max. Head, Inline (MPN 98126820)
Circulating Pump: 1/2 hp HP, 115V AC, Stainless Steel, Variable, 56 gpm, 39 ft Max. Head, Inline (MPN 98126806)
Grundfos
Circulating Pump: 1/2 hp HP, 115V AC, Stainless Steel, Variable, 56 gpm, 39 ft Max. Head, Inline (MPN 98126806)
Circulating Pump: 1/4 hp HP, 115/230V AC, Cast Iron, Variable, 40 gpm, 20 ft Max. Head, Inline (MPN 98126819)
Grundfos
Circulating Pump: 1/4 hp HP, 115/230V AC, Cast Iron, Variable, 40 gpm, 20 ft Max. Head, Inline (MPN 98126819)
Circulating Pump: 1/4 hp HP, 115/230V AC, Cast Iron, Variable, 33 ft Max. Head, Inline (MPN 98126823)
Grundfos
Circulating Pump: 1/4 hp HP, 115/230V AC, Cast Iron, Variable, 33 ft Max. Head, Inline (MPN 98126823)
Circulating Pump: 7/8 hp HP, 115V AC, Cast Iron, Variable, 175 gpm, 49 ft Max. Head, Inline (MPN 98126816)
Grundfos
Circulating Pump: 7/8 hp HP, 115V AC, Cast Iron, Variable, 175 gpm, 49 ft Max. Head, Inline (MPN 98126816)

More from Grundfos

View all Grundfos parts
Circulating Pump: 1/8 hp HP, 115V AC, Cast Iron, 3, 8 gpm, 19 ft Max. Head, 6 1/2 in Face to Face (MPN 92603115)
Grundfos
Circulating Pump: 1/8 hp HP, 115V AC, Cast Iron, 3, 8 gpm, 19 ft Max. Head, 6 1/2 in Face to Face (MPN 92603115)
Circulating Pump: 7/8 hp HP, 208-230V AC, Cast Iron, Variable, 59 ft Max. Head, Inline (MPN 98126835)
Grundfos
Circulating Pump: 7/8 hp HP, 208-230V AC, Cast Iron, Variable, 59 ft Max. Head, Inline (MPN 98126835)
Circulating Pump: 3/8 hp HP, 115/230V AC, Cast Iron, Variable, 49 gpm, 39 ft Max. Head, Inline (MPN 99833304)
Grundfos
Circulating Pump: 3/8 hp HP, 115/230V AC, Cast Iron, Variable, 49 gpm, 39 ft Max. Head, Inline (MPN 99833304)
Circulating Pump: 1/2 hp HP, 115V AC, Cast Iron, Variable, 68 gpm, 26 ft Max. Head, Inline (MPN 98126812)
Grundfos
Circulating Pump: 1/2 hp HP, 115V AC, Cast Iron, Variable, 68 gpm, 26 ft Max. Head, Inline (MPN 98126812)
Circulating Pump: 5/8 hp HP, 208-230V AC, Cast Iron, Variable, 39 ft Max. Head, Inline (MPN 98126831)
Grundfos
Circulating Pump: 5/8 hp HP, 208-230V AC, Cast Iron, Variable, 39 ft Max. Head, Inline (MPN 98126831)
Circulating Pump: 1/2 hp HP, 115V AC, Cast Iron, Variable, 131 gpm, 39 ft Max. Head, Inline (MPN 98126803)
Grundfos
Circulating Pump: 1/2 hp HP, 115V AC, Cast Iron, Variable, 131 gpm, 39 ft Max. Head, Inline (MPN 98126803)
Circulating Pump: 1/8 hp HP, 115V AC, Stainless Steel, Variable, 8 gpm, 18 ft Max. Head, Inline (MPN 92603114)
Grundfos
Circulating Pump: 1/8 hp HP, 115V AC, Stainless Steel, Variable, 8 gpm, 18 ft Max. Head, Inline (MPN 92603114)
Circulating Pump: 3/8 hp HP, 208-230V AC, Cast Iron, Variable, 47 gpm, 26 ft Max. Head, Inline (MPN 98126828)
Grundfos
Circulating Pump: 3/8 hp HP, 208-230V AC, Cast Iron, Variable, 47 gpm, 26 ft Max. Head, Inline (MPN 98126828)