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ARMSTRONG Flange: 1 1/4 in, FLANGE CI 1.25" NPT F2+HWKIT, 1 1/4 in - Unions
ARMSTRONGUnions

ARMSTRONG Flange: 1 1/4 in, FLANGE CI 1.25" NPT F2+HWKIT, 1 1/4 in

The ARMSTRONG Flange is a cast-iron union component, SKU 3G-OTH-81323, supplied as a set of (2) flanges. It features a 1 1/4-inch NPT connection and is compatible with manufacturer model number 110223-328. This…

SKU 3G-OTH-81323

Also listed as: FLANGECI125NPTF2HWKIT · FLANGE CI 1 25 NPT F2 HWKIT · FLANGE-CI-1-25-NPT-F2-HWKIT

Brand
ARMSTRONG
Item
Flange: 1 1/4 in, FLANGE CI 1.25" NPT F2+HWKIT, 1 1/4 in
Category
Unions
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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
FLANGE CI 1.25" NPT F2+HWKIT
Includes
(2) Flanges
Body Material
Cast Iron
Compatible with Manufacturer Model Number
110223-328

Technical Documents

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

Product Description

The ARMSTRONG Flange is a cast-iron union component, SKU 3G-OTH-81323, supplied as a set of (2) flanges. It features a 1 1/4-inch NPT connection and is compatible with manufacturer model number 110223-328. This product is identified by manufacturer part number FLANGE CI 1.25" NPT F2+HWKIT.

Frequently Asked Questions

What is the ARMSTRONG Flange 1 1/4 in used for?

The ARMSTRONG Flange is a cast-iron union component used to connect piping in industrial steam, water, and HVAC systems. It comes as a set of (2) flanges with a 1 1/4-inch NPT connection, providing a reliable, leak-resistant joint for maintenance and repair applications.

What are the specifications of the ARMSTRONG Flange 1 1/4 in?

The ARMSTRONG Flange set includes (2) flanges made of cast iron, with a 1 1/4-inch NPT connection. The manufacturer part number is FLANGE CI 1.25" NPT F2+HWKIT, and it is compatible with manufacturer model number 110223-328. The SKU is 33RX34.

Where to buy the ARMSTRONG Flange 1 1/4 in worldwide?

You can source the ARMSTRONG Flange 1 1/4 in through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine ARMSTRONG components for your piping systems.

How to install the ARMSTRONG Flange 1 1/4 in?

To install the ARMSTRONG Flange, ensure the pipe threads are clean and apply a suitable sealant. Tighten the NPT connections to the recommended torque, avoiding over-tightening to prevent damage to the cast-iron body. Always follow standard piping practices for a secure, leak-free joint.

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 unions. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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