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

3G Electric
ARMSTRONG Intelligent Inline Circulator Pump - Intelligent Inline Circulator Pumps
ARMSTRONGIntelligent Inline Circulator Pumps

ARMSTRONG Intelligent Inline Circulator Pump

The ARMSTRONG Hydronic Circulating Pump (SKU 180203-686, MPN 180203-686) is an intelligent inline circulator pump designed for hydronic systems. It features a 1/16 hp motor, 115V AC nameplate voltage, and a flange…

SKU 3G-OTH-84395

Also listed as: 180203686 · 180203 686

Brand
ARMSTRONG
Item
Intelligent Inline Circulator Pump
Part Number
180203-686
Category
Intelligent Inline Circulator Pumps
Available to Order
Also known as:180203-686ARMSTRONG
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

ARMSTRONG
Manufacturer Part Number
180203-686
Type
Cast Iron, Variable, 20 gpm, Inline
AC
115V
Max. Head
20 ft
System Type
Hydronic
Connection Type
Flange
Includes Volute
No 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

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

Product Description

The ARMSTRONG Hydronic Circulating Pump (SKU 180203-686, MPN 180203-686) is an intelligent inline circulator pump designed for hydronic systems. It features a 1/16 hp motor, 115V AC nameplate voltage, and a flange connection type, with no volute included. The pump delivers 20 gpm at 20 ft max head and is constructed with cast iron.

Frequently Asked Questions

What is the ARMSTRONG Hydronic Circulating Pump used for?

The ARMSTRONG Hydronic Circulating Pump is used in hydronic heating and cooling systems to circulate water through pipes, radiators, or underfloor loops. Its 1/16 hp motor and 20 gpm flow at 20 ft max head suit residential and light commercial applications.

What are the specifications of the ARMSTRONG 180203-686 pump?

The ARMSTRONG 180203-686 is a 1/16 hp, 115V AC intelligent inline circulator with cast iron construction. It delivers 20 gpm at 20 ft max head, uses a flange connection, and has no volute included. It is designed for hydronic systems.

Where to buy the ARMSTRONG Hydronic Circulating Pump worldwide?

3G Electric supplies the ARMSTRONG Hydronic Circulating Pump (SKU 3G-OTH-84395) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this pump.

How to install an ARMSTRONG inline circulator pump?

Install the ARMSTRONG inline circulator pump with the shaft horizontal and electrical connections to 115V AC per local codes. Ensure proper flange gaskets and support piping. Follow the manufacturer's manual for wiring and system purging to avoid air locks.

Used in

Common applications for ARMSTRONG
Hydronic heating systems — ARMSTRONG general-purpose inline circulator pump 182202-657 for potable water circulation
Pump motor replacement — ARMSTRONG pump motor 817025-007 for S&H 4-Series circulator pumps
Flange installation on E32.2HT pumps — ARMSTRONG flange hardware kit 810120-353K with steel bolts and rubber gaskets
Bearing replacement in H-32 series pumps — ARMSTRONG bearing assembly 816549MF-091 for in-line circulating pumps
Piping system connections — ARMSTRONG standard flanges 806074-621k for H-6 6 model with stainless steel and EPDM
Retrofit of pump flanges — ARMSTRONG flange 561100LF-001 for ASTRO EXPRESS 2 SYSTEM union-type connections
Not sure this is the right part? Photo-identify it

ARMSTRONG Products

3G Electric supplies ARMSTRONG 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

More from ARMSTRONG

View all ARMSTRONG parts
ARMSTRONG
ARMSTRONG
Variable-speed inline circulator pump for hydronic systems. Ductile iron construction with flange connections and included volute. Delivers up to 45 gpm at 40 ft max head. Operates on 230V AC
ARMSTRONG
ARMSTRONG
This intelligent inline circulator pump is designed for potable water systems. It operates at 120V AC, delivers 20 gpm at 20 ft max head, and features union connections. Constructed with stainless steel, it does not include a volute
This intelligent inline circulator pump from ARMSTRONG is designed for potable water systems. It features a cast iron construction, variable speed operation, and a flange connection. The pump delivers 20 gpm at 20 ft maximum head, powered by a 115V AC motor. Note: volute not included
ARMSTRONG
This intelligent inline circulator pump from ARMSTRONG is designed for potable water systems. It features a cast iron construction, variable speed operation, and a flange connection. The pump delivers 20 gpm at 20 ft maximum head, powered by a 115V AC motor. Note: volute not included
ARMSTRONG
ARMSTRONG
Ductile iron variable-speed circulator pump for hydronic systems. Flange connections, volute included. Delivers up to 75 gpm at 20 ft maximum head. 120V AC nameplate voltage

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first