Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
ARMSTRONG LF 3/4" FNPT UNION HARDWARE KIT - Unions
ARMSTRONGUnions

ARMSTRONG LF 3/4" FNPT UNION HARDWARE KIT

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
LF 3/4" FNPT UNION HARDWARE KIT
Part Number
LF 3/4" FNPT UNION HARDWARE KIT
Category
Unions
Available to Order
Also known as:LF 3/4" FNPT UNION HARDWARE KITARMSTRONG
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.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, 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

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 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
Healthcare isolation rooms — Armstrong Calla 2820A sealed system tiles for acoustic control and cleanability
Commercial office ceilings — Armstrong Prelude main beams and cross tees for suspension framing
Hydronic heating systems — Armstrong E23.2 inline circulator pump for potable water circulation
Pump maintenance — Armstrong seal kit 8975002-374K for bearing assembly replacement in circulator pumps
Cleanroom environments — Armstrong Calla 1353N sealed system tiles with mold resistance and high light reflectance
General-purpose interiors — Armstrong Calla 2822AN ceiling tiles for 15/16 in grid with square tegular edge
Not sure this is the right part? Photo-identify it→

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

More from ARMSTRONG

View all ARMSTRONG parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first