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

ARMSTRONG Aquastat: Copper/Steel, 110123-121, 3/4" I.D - Aquastats for Circulator Pumps
ARMSTRONGAquastats for Circulator Pumps

ARMSTRONG Aquastat: Copper/Steel, 110123-121, 3/4" I.D

The ARMSTRONG Aquastat, model 110123-121, is a copper/steel aquastat designed for circulator pumps. It features a 3/4" I.D. and a 1/2 in connection size. This OEM ARMSTRONG component is intended for use in hydronic…

SKU 3G-OTH-134808

Also listed as: 110123121 · 110123 121

Brand
ARMSTRONG
Item
Aquastat: Copper/Steel, 110123-121, 3/4" I.D
Category
Aquastats for 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

ARMSTRONG
Manufacturer Part Number
110123-121

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 Aquastat, model 110123-121, is a copper/steel aquastat designed for circulator pumps. It features a 3/4" I.D. and a 1/2 in connection size. This OEM ARMSTRONG component is intended for use in hydronic heating systems.

Frequently Asked Questions

What is the ARMSTRONG Aquastat 110123-121 used for?

The ARMSTRONG Aquastat 110123-121 is used in hydronic heating systems to control circulator pump operation based on water temperature. It is a copper/steel component with a 3/4" I.D. and 1/2 in connection, designed for OEM ARMSTRONG applications.

What are the specifications of the ARMSTRONG Aquastat 110123-121?

The ARMSTRONG Aquastat 110123-121 is made of copper and steel, with a 3/4" I.D. and a 1/2 in connection size. It is an OEM ARMSTRONG component, model 110123-121, designed for circulator pumps in hydronic heating systems.

Where to buy the ARMSTRONG Aquastat 110123-121 worldwide?

You can source the ARMSTRONG Aquastat 110123-121 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to install the ARMSTRONG Aquastat 110123-121?

Install the ARMSTRONG Aquastat 110123-121 by mounting it on the circulator pump with the 3/4" I.D. fitting and 1/2 in connection. Ensure proper wiring per the manufacturer's diagram. Always follow generic best practices for hydronic system components and consult a qualified technician.

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

ARMSTRONG Products

3G Electric supplies ARMSTRONG aquastats for 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
ARMSTRONG
ARMSTRONG
Hydronic Circulating Pump: 1/6 hp HP, 120V AC, Ductile Iron, Variable, 75 gpm, 20 ft Max. Head (MPN 119181-113)
Bearing assembly for in-line circulating pumps, compatible with Series H-63. Includes bearing cap. Used to support the pump rotor and maintain shaft alignment in fluid circulation systems
ARMSTRONG
Bearing assembly for in-line circulating pumps, compatible with Series H-63. Includes bearing cap. Used to support the pump rotor and maintain shaft alignment in fluid circulation systems
ARMSTRONG
ARMSTRONG
Circulating Pump: 1/2 hp HP, 120V AC, Bronze, 1, 119 gpm, 24 ft Max. Head, 12 in Face to Face (MPN 106284MF-743)
ARMSTRONG
ARMSTRONG
Circulating Pump: 1/6 hp HP, 120V AC, Bronze, 1, 32 gpm, 29 ft Max. Head, 6 13/32 in Face to Face (MPN 182202-644)
ARMSTRONG
ARMSTRONG
HVAC Circulating Pump: 1/6 hp HP, 120V AC, Stainless Steel, Variable, 20 gpm, 20 ft Max. Head (MPN 180203-684)
ARMSTRONG Circulating Pump Coupler: Mfr Part # 812734-000, Cast Iron
ARMSTRONG
ARMSTRONG Circulating Pump Coupler: Mfr Part # 812734-000, Cast Iron

More from ARMSTRONG

View all ARMSTRONG parts
ARMSTRONG Aquastat: Copper/Steel, 110123-120, 1/2" I.D., 3/8 in
ARMSTRONG
ARMSTRONG Aquastat: Copper/Steel, 110123-120, 1/2" I.D., 3/8 in