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

Grundfos Circulating Pump: 1/2 hp HP, 115V AC, Cast Iron, Variable, 131 gpm, 39 ft Max. Head - Intelligent Inline Circulator Pumps
GrundfosIntelligent Inline Circulator Pumps

Grundfos Circulating Pump: 1/2 hp HP, 115V AC, Cast Iron, Variable, 131 gpm, 39 ft Max. Head

The Grundfos Intelligent Inline Circulator Pump (SKU 3G-OTH-85053, MPN 98126803) is a standard-efficiency, variable-speed pump designed for potable water systems. It features a 1/2 hp motor, 115V AC nameplate…

SKU 3G-OTH-85053

Brand
Grundfos
Item
Circulating Pump: 1/2 hp HP, 115V AC, Cast Iron, Variable, 131 gpm, 39 ft Max. Head
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
98126803
Type
Cast Iron, Variable, 131 gpm, Inline
AC
115V
Max. Head
39 ft
Efficiency
Standard Efficiency
System Type
Potable Water
Connection Type
Flange
Includes Volute
Volute Included
Nameplate Voltage
115V 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-85053, MPN 98126803) is a standard-efficiency, variable-speed pump designed for potable water systems. It features a 1/2 hp motor, 115V AC nameplate voltage, flange connections, and an included volute. The pump delivers up to 131 gpm flow and 39 ft maximum head, with a cast iron construction.

Frequently Asked Questions

What is the Grundfos 98126803 circulating pump used for?

The Grundfos 98126803 is an intelligent inline circulator pump designed for potable water systems. It delivers up to 131 gpm flow and 39 ft maximum head, making it suitable for commercial or industrial water circulation where variable-speed control and standard efficiency are required.

What are the specifications of the Grundfos 98126803 pump?

This Grundfos pump has a 1/2 hp motor, 115V AC nameplate voltage, cast iron construction, flange connections, and an included volute. It provides up to 131 gpm flow and 39 ft maximum head, with standard efficiency and variable-speed operation for potable water systems.

Where to buy the Grundfos 98126803 pump worldwide?

3G Electric supplies the Grundfos 98126803 intelligent inline circulator pump to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this standard-efficiency, variable-speed pump for potable water systems.

How to install a Grundfos inline circulator pump?

Installation of a Grundfos inline circulator pump like the 98126803 should follow the manufacturer's manual. Ensure proper flange alignment, support piping weight, and wire the 115V AC motor per local codes. For potable water systems, flush the line before startup to remove debris.

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: 1/2 hp HP, 115V AC, Cast Iron, Variable, 56 gpm, 39 ft Max. Head, Inline (MPN 98126804)
Grundfos
Circulating Pump: 1/2 hp HP, 115V AC, Cast Iron, Variable, 56 gpm, 39 ft Max. Head, Inline (MPN 98126804)
Circulating Pump: 1/3 hp HP, 115V AC, Cast Iron, Variable, 47 gpm, 26 ft Max. Head, Inline (MPN 98126800)
Grundfos
Circulating Pump: 1/3 hp HP, 115V AC, Cast Iron, Variable, 47 gpm, 26 ft Max. Head, Inline (MPN 98126800)
Circulating Pump: 3/8 hp HP, 115V AC, Cast Iron, 1, 26 ft Max. Head, 8 9/16 in Face to Face, Inline (MPN 98126799)
Grundfos
Circulating Pump: 3/8 hp HP, 115V AC, Cast Iron, 1, 26 ft Max. Head, 8 9/16 in Face to Face, Inline (MPN 98126799)
Circulating Pump: 1/8 hp HP, 115V AC, Cast Iron, Variable, 8 gpm, 19 ft Max. Head, Inline (MPN 92603108)
Grundfos
Circulating Pump: 1/8 hp HP, 115V AC, Cast Iron, Variable, 8 gpm, 19 ft Max. Head, Inline (MPN 92603108)
Circulating Pump: 1/3 hp HP, 115V AC, Stainless Steel, Variable, 47 gpm, 26 ft Max. Head, Inline (MPN 98126802)
Grundfos
Circulating Pump: 1/3 hp HP, 115V AC, Stainless Steel, Variable, 47 gpm, 26 ft Max. Head, Inline (MPN 98126802)
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)

More from Grundfos

View all Grundfos parts
Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 29 gpm, 33 ft Max. Head, Inline (MPN 98126826)
Grundfos
Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 29 gpm, 33 ft Max. Head, Inline (MPN 98126826)
Circulating Pump: 3/4 hp HP, 115V AC, Cast Iron, Variable, 62 gpm, 59 ft Max. Head, Inline (MPN 98126808)
Grundfos
Circulating Pump: 3/4 hp HP, 115V AC, Cast Iron, Variable, 62 gpm, 59 ft Max. Head, Inline (MPN 98126808)
Circulating Pump: 5/8 hp HP, 208-230V AC, Cast Iron, Variable, 56 gpm, 39 ft Max. Head, Inline (MPN 98126832)
Grundfos
Circulating Pump: 5/8 hp HP, 208-230V AC, Cast Iron, Variable, 56 gpm, 39 ft Max. Head, Inline (MPN 98126832)
Circulating Pump: 1 hp HP, 208-230V AC, Cast Iron, Variable, 105 gpm, 39 ft Max. Head, Inline (MPN 98126848)
Grundfos
Circulating Pump: 1 hp HP, 208-230V AC, Cast Iron, Variable, 105 gpm, 39 ft Max. Head, Inline (MPN 98126848)
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)
Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 20 gpm, 20 ft Max. Head, Inline (MPN 98126821)
Grundfos
Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 20 gpm, 20 ft Max. Head, Inline (MPN 98126821)
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, Stainless Steel, Variable, 33 ft Max. Head, Inline (MPN 98126825)
Grundfos
Circulating Pump: 1/4 hp HP, 115/230V AC, Stainless Steel, Variable, 33 ft Max. Head, Inline (MPN 98126825)