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ARMSTRONG Flange: 3/4 in, LF 3/4" FNPT UNION HARDWARE KIT, 3/4 in FNPT, 1 1/4 in NPSM - Unions
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ARMSTRONG Flange: 3/4 in, LF 3/4" FNPT UNION HARDWARE KIT, 3/4 in FNPT, 1 1/4 in NPSM

The ARMSTRONG Flange: 3/4 in is a bronze union with 3/4 in FNPT and 1 1/4 in NPSM connections, supplied as a hardware kit (LF 3/4" FNPT UNION HARDWARE KIT) that includes two EPDM gaskets. It is compatible with the…

SKU 3G-OTH-81144

Also listed as: LF34FNPTUNIONHARDWAREKIT · LF 3 4 FNPT UNION HARDWARE KIT · LF-3-4-FNPT-UNION-HARDWARE-KIT

Brand
ARMSTRONG
Item
Flange: 3/4 in, LF 3/4" FNPT UNION HARDWARE KIT, 3/4 in FNPT, 1 1/4 in NPSM
Category
Unions
Available to Order
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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
LF 3/4" FNPT UNION HARDWARE KIT
Type
LF 3/4" FNPT UNION HARDWARE KIT, Union
FNPT
3/4 in
NPSM
1 1/4 in
Includes
(2) Gaskets
Body Material
Bronze
Gasket Material
EPDM
Compatible with Manufacturer Model Number
ASTRO 225SSU

Technical Documents

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

Product Description

The ARMSTRONG Flange: 3/4 in is a bronze union with 3/4 in FNPT and 1 1/4 in NPSM connections, supplied as a hardware kit (LF 3/4" FNPT UNION HARDWARE KIT) that includes two EPDM gaskets. It is compatible with the ARMSTRONG ASTRO 225SSU model.

Frequently Asked Questions

What is the ARMSTRONG LF 3/4" FNPT UNION HARDWARE KIT used for?

This bronze union kit is used to connect and disconnect piping in industrial water and steam systems. It is compatible with the ARMSTRONG ASTRO 225SSU model and includes two EPDM gaskets for sealing.

What are the specifications of the ARMSTRONG 3/4 in union hardware kit?

The kit includes a bronze union body with 3/4 in FNPT and 1 1/4 in NPSM connections. It comes with two EPDM gaskets. The manufacturer part number is LF 3/4" FNPT UNION HARDWARE KIT, compatible with ARMSTRONG ASTRO 225SSU.

Where to buy the ARMSTRONG union hardware kit worldwide?

3G Electric supplies the ARMSTRONG LF 3/4" FNPT UNION HARDWARE KIT worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the ARMSTRONG union hardware kit?

Ensure pipe threads are clean and apply thread sealant. Assemble the bronze union with the two EPDM gaskets between mating surfaces. Tighten the union nut to manufacturer torque specifications. Test for leaks before system pressurization.

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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