Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
ARMSTRONG INTERNATIONAL Steam Trap: Stainless Steel, 1/2 in FNPT, 600 lb/hr, 400 psi Max., 800°F Max. - Corrosion-Resistant Inverted Bucket Steam Traps
ARMSTRONG INTERNATIONALCorrosion-Resistant Inverted Bucket Steam Traps

ARMSTRONG INTERNATIONAL Steam Trap: Stainless Steel, 1/2 in FNPT, 600 lb/hr, 400 psi Max., 800°F Max.

The ARMSTRONG INTERNATIONAL Steam Trap is a corrosion-resistant inverted bucket steam trap designed for industrial applications. This stainless steel unit features a 1/2 in FNPT connection, a capacity of 600 lb/hr…

SKU 3G-OTH-70575

Brand
ARMSTRONG INTERNATIONAL
Item
Steam Trap: Stainless Steel, 1/2 in FNPT, 600 lb/hr, 400 psi Max., 800°F Max.
Category
Corrosion-Resistant Inverted Bucket Steam Traps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

ARMSTRONG INTERNATIONAL
Manufacturer Part Number
1811-050-400
Type
600 lb/hr, Strainer Not Included
FNPT
1/2 in
Max.
400 psi
Configuration
In-line
Installation Orientation
Horizontal
View Full Spec Sheet

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

Product Description

The ARMSTRONG INTERNATIONAL Steam Trap is a corrosion-resistant inverted bucket steam trap designed for industrial applications. This stainless steel unit features a 1/2 in FNPT connection, a capacity of 600 lb/hr, and a maximum pressure of 400 psi with a maximum temperature of 800°F. It is configured for in-line horizontal installation and does not include a strainer.

Frequently Asked Questions

What is the ARMSTRONG INTERNATIONAL steam trap used for?

This inverted bucket steam trap removes condensate from steam lines in industrial heating and process systems. Its corrosion-resistant stainless steel construction suits harsh environments. It handles up to 600 lb/hr condensate at 400 psi and 800°F, making it ideal for refineries, chemical plants, and power generation.

What are the specifications of the ARMSTRONG INTERNATIONAL steam trap?

The ARMSTRONG INTERNATIONAL model 1811-050-400 is a stainless steel inverted bucket steam trap with a 1/2 in FNPT connection. It has a maximum capacity of 600 lb/hr, maximum pressure of 400 psi, and maximum temperature of 800°F. It is configured for in-line horizontal installation and does not include a strainer.

Where to buy the ARMSTRONG INTERNATIONAL steam trap worldwide?

3G Electric supplies the ARMSTRONG INTERNATIONAL steam trap worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this corrosion-resistant inverted bucket trap to any country.

How to install the ARMSTRONG INTERNATIONAL inverted bucket steam trap?

Install the trap horizontally in-line with the flow arrow pointing in the direction of condensate flow. Ensure piping supports prevent stress on the trap. Use a strainer upstream (not included) to protect the trap from debris. Follow standard steam system best practices for safe operation at up to 400 psi and 800°F.

Used in

Common applications for ARMSTRONG INTERNATIONAL
Chemical processing — Armstrong International inverted-bucket steam traps (e.g., 882-050-125) for condensate removal from heat exchangers.
Food and beverage — Armstrong International corrosion-resistant steam traps (e.g., 1811-050-200) for steam tracing on sanitary lines.
Refining — Armstrong International high-pressure steam traps (e.g., 1822-100-650) for process steam mains.
Commercial HVAC — Armstrong International steam spargers (e.g., MS6-1-1/4") for hot water generation in boiler systems.
Pharmaceutical — Armstrong International stainless-steel steam traps (e.g., 1811-050-400) for clean steam applications.
Power generation — Armstrong International cast-iron steam traps (e.g., 883-075-250) for turbine drain lines.

ARMSTRONG INTERNATIONAL Products

3G Electric supplies ARMSTRONG INTERNATIONAL corrosion-resistant inverted bucket steam traps. 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 →

Similar products

Matched by specification & description
Steam Trap: Cast Iron, 1/2 in FNPT, 700 lb/hr, 80 psi Max., 450°F Max., Strainer Not Included (MPN 800-050-080). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1/2 in FNPT, 700 lb/hr, 80 psi Max., 450°F Max., Strainer Not Included (MPN 800-050-080). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Cast Iron, 1/2 in FNPT, 1,300 lb/hr, 250 psi Max., 450°F Max., Strainer Included (MPN 882-050-250). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1/2 in FNPT, 1,300 lb/hr, 250 psi Max., 450°F Max., Strainer Included (MPN 882-050-250). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Cast Iron, 1/2 in FNPT, 600 lb/hr, 150 psi Max., 450°F Max., Strainer Not Included (MPN 800-050-150). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1/2 in FNPT, 600 lb/hr, 150 psi Max., 450°F Max., Strainer Not Included (MPN 800-050-150). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Cast Iron, 1/2 in FNPT, 2,000 lb/hr, 30 psi Max., 450°F Max., Strainer Included (MPN 882-050-030). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1/2 in FNPT, 2,000 lb/hr, 30 psi Max., 450°F Max., Strainer Included (MPN 882-050-030). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Cast Iron, 1/2 in FNPT, 750 lb/hr, 250 psi Max., 450°F Max., Strainer Not Included (MPN 811-050-250). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1/2 in FNPT, 750 lb/hr, 250 psi Max., 450°F Max., Strainer Not Included (MPN 811-050-250). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Cast Iron, 1/2 in FNPT, 1,000 lb/hr, 30 psi Max., 450°F Max., Strainer Not Included (MPN 811-050-030). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1/2 in FNPT, 1,000 lb/hr, 30 psi Max., 450°F Max., Strainer Not Included (MPN 811-050-030). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.

More from ARMSTRONG INTERNATIONAL

View all ARMSTRONG INTERNATIONAL parts →
Steam Trap: Stainless Steel, 1/2 in FNPT, 900 lb/hr, 200 psi Max., 800°F Max., Strainer Not Included (MPN 1811-050-200). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Stainless Steel, 1/2 in FNPT, 900 lb/hr, 200 psi Max., 800°F Max., Strainer Not Included (MPN 1811-050-200). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Stainless Steel, 1 in FNPT, 1,500 lb/hr, 650 psi Max., 600°F Max., Strainer Not Included (MPN 1822-100-650). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Stainless Steel, 1 in FNPT, 1,500 lb/hr, 650 psi Max., 600°F Max., Strainer Not Included (MPN 1822-100-650). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Stainless Steel, 3/4 in FNPT, 900 lb/hr, 125 psi Max., 800°F Max., Strainer Not Included (MPN 1811-075-125). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Stainless Steel, 3/4 in FNPT, 900 lb/hr, 125 psi Max., 800°F Max., Strainer Not Included (MPN 1811-075-125). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Stainless Steel, 3/4 in FNPT, 600 lb/hr, 400 psi Max., 800°F Max., Strainer Not Included (MPN 1811-075-400). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Stainless Steel, 3/4 in FNPT, 600 lb/hr, 400 psi Max., 800°F Max., Strainer Not Included (MPN 1811-075-400). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
Steam Trap: Stainless Steel, 1 in FNPT, 1,500 lb/hr, 250 psi Max., 600°F Max., Strainer Not Included (MPN 1822-100-250). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.
ARMSTRONG INTERNATIONAL
Steam Trap: Stainless Steel, 1 in FNPT, 1,500 lb/hr, 250 psi Max., 600°F Max., Strainer Not Included (MPN 1822-100-250). Key specifications — Installation Orientation: Horizontal; Brand: ARMSTRONG INTERNATIONAL; Configuration: In-line.