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ARMSTRONG Circulating Pump: 5/16 hp HP, 115V AC, Stainless Steel, 3, 31 gpm, 31 ft Max. Head - General-Purpose Inline Circulator Pumps
ARMSTRONGGeneral-Purpose Inline Circulator Pumps

ARMSTRONG Circulating Pump: 5/16 hp HP, 115V AC, Stainless Steel, 3, 31 gpm, 31 ft Max. Head

The ARMSTRONG Circulating Pump: 5/16 hp HP is a general-purpose inline circulator pump designed for potable water systems. It features a 115V AC nameplate voltage, flange connections, and delivers 31 gpm at 31 ft…

SKU 3G-OTH-82971

Also listed as: 110223321 · 110223 321

Brand
ARMSTRONG
Item
Circulating Pump: 5/16 hp HP, 115V AC, Stainless Steel, 3, 31 gpm, 31 ft Max. Head
Category
General-Purpose Inline Circulator Pumps
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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
110223-321
Type
Stainless Steel, 3, 31 gpm, Inline
AC
115V
Max. Head
31 ft
System Type
Potable Water
Connection Type
Flange
Includes Volute
No Volute Included
Nameplate Voltage
115V AC

Technical Documents

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

Product Description

The ARMSTRONG Circulating Pump: 5/16 hp HP is a general-purpose inline circulator pump designed for potable water systems. It features a 115V AC nameplate voltage, flange connections, and delivers 31 gpm at 31 ft max. head. This model (MPN 110223-321) is constructed with stainless steel and does not include a volute.

Frequently Asked Questions

What is the ARMSTRONG 110223-321 circulating pump used for?

This ARMSTRONG inline circulator pump is designed for potable water systems in commercial or industrial buildings. It moves water through piping at 31 gpm with 31 ft max. head, using a 5/16 hp motor at 115V AC. Its stainless steel construction resists corrosion in clean water applications.

What are the specifications of the ARMSTRONG 110223-321 pump?

The ARMSTRONG 110223-321 is a 5/16 hp inline circulator pump with 115V AC nameplate voltage, flange connections, and a max. head of 31 ft. It delivers 31 gpm, is made of stainless steel, and is rated for potable water systems. No volute is included with this model.

Where to buy the ARMSTRONG 110223-321 pump worldwide?

3G Electric supplies the ARMSTRONG 110223-321 circulating pump to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this potable water pump.

How to install an ARMSTRONG inline circulator pump?

Install the ARMSTRONG 110223-321 pump with proper flange gaskets and support piping to avoid stress on the pump body. Ensure electrical supply matches 115V AC nameplate voltage. For potable water systems, flush lines before startup. Always follow the manufacturer's installation manual for torque and alignment.

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 general-purpose inline circulator pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Circulating Pump: 5/16 hp HP, 230V AC, Stainless Steel, 3, 31 gpm, 31 ft Max. Head, Inline (MPN 110223-323)
ARMSTRONG
Circulating Pump: 5/16 hp HP, 230V AC, Stainless Steel, 3, 31 gpm, 31 ft Max. Head, Inline (MPN 110223-323)
Circulating Pump: 5/16 hp HP, 115V AC, Stainless Steel, 3, 64 gpm, 14 ft Max. Head, Inline (MPN 110223-329)
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Circulating Pump: 5/16 hp HP, 115V AC, Stainless Steel, 3, 64 gpm, 14 ft Max. Head, Inline (MPN 110223-329)
Circulating Pump: 1/6 hp HP, 115V AC, Stainless Steel, 3, 18 gpm, 24 ft Max. Head, Inline (MPN 110223-308)
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Circulating Pump: 1/6 hp HP, 115V AC, Stainless Steel, 3, 18 gpm, 24 ft Max. Head, Inline (MPN 110223-308)
Circulating Pump: 1/8 hp HP, 115V AC, Stainless Steel, 3, 18 gpm, 18 ft Max. Head, Inline (MPN 110223-306)
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Circulating Pump: 1/8 hp HP, 115V AC, Stainless Steel, 3, 18 gpm, 18 ft Max. Head, Inline (MPN 110223-306)
Circulating Pump: 1/9 hp HP, 115V AC, Stainless Steel, 3, 14 gpm, 13 ft Max. Head, 6 in Face to Face (MPN 110223-310)
ARMSTRONG
Circulating Pump: 1/9 hp HP, 115V AC, Stainless Steel, 3, 14 gpm, 13 ft Max. Head, 6 in Face to Face (MPN 110223-310)
Circulating Pump: 1/32 hp HP, 115V AC, Stainless Steel, 3, 10 gpm, 5 ft Max. Head, 6 in Face to Face (MPN 110223B-140)
ARMSTRONG
Circulating Pump: 1/32 hp HP, 115V AC, Stainless Steel, 3, 10 gpm, 5 ft Max. Head, 6 in Face to Face (MPN 110223B-140)

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