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

ARMSTRONG INTERNATIONAL Cast Iron In-line Float & Thermostatic Steam Trap - Cast Iron In-line Float & Thermostatic Steam Traps
ARMSTRONG INTERNATIONALCast Iron In-line Float & Thermostatic Steam Traps

ARMSTRONG INTERNATIONAL Cast Iron In-line Float & Thermostatic Steam Trap

The ARMSTRONG INTERNATIONAL Cast Iron In-line Float & Thermostatic Steam Trap (MPN 15BI4, Series BI) is a 1-inch FNPT steam trap with a maximum capacity of 2,100 lb/hr at 15 psi and 377°F. It features a stainless…

SKU 3G-OTH-72584

Brand
ARMSTRONG INTERNATIONAL
Item
Cast Iron In-line Float & Thermostatic Steam Trap
Category
Cast Iron In-line Float & Thermostatic Steam Traps
Available to Order
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.
Worldwide Shipping
Air & sea freight
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
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ARMSTRONG INTERNATIONAL
Manufacturer Part Number
15BI4
Float Material
Stainless Steel
Manufacturer Series
BI
Installation Orientation
Horizontal

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 Cast Iron In-line Float & Thermostatic Steam Trap (MPN 15BI4, Series BI) is a 1-inch FNPT steam trap with a maximum capacity of 2,100 lb/hr at 15 psi and 377°F. It features a stainless steel float and is designed for horizontal installation.

Frequently Asked Questions

What is the Armstrong International 15BI4 steam trap used for?

The Armstrong International 15BI4 cast iron in-line float & thermostatic steam trap removes condensate and air from steam lines in industrial heating and process applications. It handles up to 2,100 lb/hr at 15 psi and 377°F, with a stainless steel float for reliable operation.

What are the specifications of the Armstrong 15BI4 steam trap?

The Armstrong International 15BI4 is a 1-inch FNPT cast iron in-line float & thermostatic steam trap. It has a maximum capacity of 2,100 lb/hr at 15 psi and 377°F, with a stainless steel float. It is designed for horizontal installation and is part of the BI series.

Where to buy Armstrong International steam traps worldwide?

3G Electric supplies the Armstrong International 15BI4 steam trap to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this cast iron in-line float & thermostatic steam trap.

How to install the Armstrong 15BI4 steam trap?

Install the Armstrong 15BI4 steam trap in a horizontal orientation with the inlet and outlet aligned with the pipe. Ensure proper support and allow clearance for maintenance. Follow standard steam trap installation practices, including upstream strainer and isolation valves, to protect the stainless steel float.

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 cast iron in-line float & thermostatic 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
This cast iron in-line float and thermostatic steam trap automatically drains condensate from steam lines while preventing steam loss. It features a 1/2 in FNPT connection, maximum capacity of 1,200 lb/hr, and maximum pressure of 15 psi. The stainless steel float and horizontal installation design make it suitable for low-pressure heating and process applications requiring continuous condensate removal
ARMSTRONG INTERNATIONAL
This cast iron in-line float and thermostatic steam trap automatically drains condensate from steam lines while preventing steam loss. It features a 1/2 in FNPT connection, maximum capacity of 1,200 lb/hr, and maximum pressure of 15 psi. The stainless steel float and horizontal installation design make it suitable for low-pressure heating and process applications requiring continuous condensate removal
Cast iron in-line float and thermostatic steam trap with 3/4 in FNPT connection. Rated for 1,200 lb/hr capacity, 15 psi maximum pressure, and 353°F maximum temperature. Stainless steel float; designed for horizontal installation. Used to drain condensate from steam lines in low-pressure heating and process systems
ARMSTRONG INTERNATIONAL
Cast iron in-line float and thermostatic steam trap with 3/4 in FNPT connection. Rated for 1,200 lb/hr capacity, 15 psi maximum pressure, and 353°F maximum temperature. Stainless steel float; designed for horizontal installation. Used to drain condensate from steam lines in low-pressure heating and process systems
This cast iron in-line float and thermostatic steam trap automatically drains condensate from steam lines while preventing steam loss. It features a stainless steel float and is designed for horizontal installation. Suitable for condensate removal in steam mains, heat exchangers, and industrial heating processes
ARMSTRONG INTERNATIONAL
This cast iron in-line float and thermostatic steam trap automatically drains condensate from steam lines while preventing steam loss. It features a stainless steel float and is designed for horizontal installation. Suitable for condensate removal in steam mains, heat exchangers, and industrial heating processes
This cast iron float and thermostatic steam trap automatically drains condensate from steam lines while preventing steam loss. It features a stainless steel float, 1 in FNPT connection, maximum capacity of 2,100 lb/hr, maximum pressure of 15 psi, and maximum temperature of 377°F. Suitable for low-pressure heating systems and industrial condensate removal applications. Horizontal installation orientation
ARMSTRONG INTERNATIONAL
This cast iron float and thermostatic steam trap automatically drains condensate from steam lines while preventing steam loss. It features a stainless steel float, 1 in FNPT connection, maximum capacity of 2,100 lb/hr, maximum pressure of 15 psi, and maximum temperature of 377°F. Suitable for low-pressure heating systems and industrial condensate removal applications. Horizontal installation orientation

More from ARMSTRONG INTERNATIONAL

View all ARMSTRONG INTERNATIONAL parts
Cast iron in-line float and thermostatic steam trap with 3/4 in FNPT connections. Maximum capacity of 1,200 lb/hr at 30 psi and 353°F. Stainless steel float. Designed for horizontal installation to remove condensate and air from steam lines
ARMSTRONG INTERNATIONAL
Cast iron in-line float and thermostatic steam trap with 3/4 in FNPT connections. Maximum capacity of 1,200 lb/hr at 30 psi and 353°F. Stainless steel float. Designed for horizontal installation to remove condensate and air from steam lines
This cast iron in-line float and thermostatic steam trap is designed for horizontal installation with a 1/2 in FNPT connection. It features a stainless steel float and handles a maximum capacity of 1,800 lb/hr at 75 psi and 377°F. Suitable for removing condensate and air from steam lines in industrial heating and process systems
ARMSTRONG INTERNATIONAL
This cast iron in-line float and thermostatic steam trap is designed for horizontal installation with a 1/2 in FNPT connection. It features a stainless steel float and handles a maximum capacity of 1,800 lb/hr at 75 psi and 377°F. Suitable for removing condensate and air from steam lines in industrial heating and process systems
Cast iron in-line float and thermostatic steam trap with stainless steel float. Designed for horizontal installation. Used to automatically drain condensate from steam lines while preventing steam loss in industrial heating systems, process steam mains, and heat exchangers
ARMSTRONG INTERNATIONAL
Cast iron in-line float and thermostatic steam trap with stainless steel float. Designed for horizontal installation. Used to automatically drain condensate from steam lines while preventing steam loss in industrial heating systems, process steam mains, and heat exchangers
Cast iron in-line float and thermostatic steam trap with 3/4 in FNPT connection. Rated for 1,100 lb/hr condensate capacity at 175 psi maximum pressure and 377°F maximum temperature. Stainless steel float. Designed for horizontal installation in steam systems to automatically drain condensate while preventing steam loss
ARMSTRONG INTERNATIONAL
Cast iron in-line float and thermostatic steam trap with 3/4 in FNPT connection. Rated for 1,100 lb/hr condensate capacity at 175 psi maximum pressure and 377°F maximum temperature. Stainless steel float. Designed for horizontal installation in steam systems to automatically drain condensate while preventing steam loss
Cast iron in-line float and thermostatic steam trap with 3/4 in FNPT connection. Rated for 1,800 lb/hr capacity, 75 psi maximum pressure, and 377°F maximum temperature. Stainless steel float. Designed for horizontal installation. Used to drain condensate from steam lines in heating systems and process mains
ARMSTRONG INTERNATIONAL
Cast iron in-line float and thermostatic steam trap with 3/4 in FNPT connection. Rated for 1,800 lb/hr capacity, 75 psi maximum pressure, and 377°F maximum temperature. Stainless steel float. Designed for horizontal installation. Used to drain condensate from steam lines in heating systems and process mains
Cast iron in-line float and thermostatic steam trap with 1/2 inch FNPT connection. Rated for maximum pressure of 175 psi and maximum capacity of 1,100 lb/hr. Stainless steel float. Designed for horizontal installation. Used to automatically drain condensate from steam lines in heating processes, heat exchangers, and steam distribution systems
ARMSTRONG INTERNATIONAL
Cast iron in-line float and thermostatic steam trap with 1/2 inch FNPT connection. Rated for maximum pressure of 175 psi and maximum capacity of 1,100 lb/hr. Stainless steel float. Designed for horizontal installation. Used to automatically drain condensate from steam lines in heating processes, heat exchangers, and steam distribution systems
Cast iron in-line float and thermostatic steam trap with 1 in FNPT connections. Maximum capacity 1,100 lb/hr, maximum pressure 175 psi, maximum temperature 377°F. Stainless steel float. Designed for horizontal installation. Used to automatically drain condensate from steam lines while preventing steam loss
ARMSTRONG INTERNATIONAL
Cast iron in-line float and thermostatic steam trap with 1 in FNPT connections. Maximum capacity 1,100 lb/hr, maximum pressure 175 psi, maximum temperature 377°F. Stainless steel float. Designed for horizontal installation. Used to automatically drain condensate from steam lines while preventing steam loss
Cast iron in-line float and thermostatic steam trap with 1/2 in FNPT connection. Maximum operating pressure 30 psi, maximum capacity 2,100 lb/hr. Stainless steel float. Designed for horizontal installation. Used for automatic condensate drainage from steam lines in heating systems and process applications
ARMSTRONG INTERNATIONAL
Cast iron in-line float and thermostatic steam trap with 1/2 in FNPT connection. Maximum operating pressure 30 psi, maximum capacity 2,100 lb/hr. Stainless steel float. Designed for horizontal installation. Used for automatic condensate drainage from steam lines in heating systems and process applications