We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

ARMSTRONG INTERNATIONAL Steam Trap: Cast Iron, 1 in FNPT, 1,150 lb/hr, 175 psi Max., 377°F Max. - Cast Iron C-Pattern Float & Thermostatic Steam Traps
ARMSTRONG INTERNATIONALCast Iron C-Pattern Float & Thermostatic Steam Traps

ARMSTRONG INTERNATIONAL Steam Trap: Cast Iron, 1 in FNPT, 1,150 lb/hr, 175 psi Max., 377°F Max.

The ARMSTRONG INTERNATIONAL Steam Trap is a Cast Iron C-Pattern Float & Thermostatic Steam Trap (MPN 175A4) designed for horizontal installation. It features a 1 in FNPT connection, a capacity of 1,150 lb/hr, and a…

SKU 3G-OTH-70100

Brand
ARMSTRONG INTERNATIONAL
Item
Steam Trap: Cast Iron, 1 in FNPT, 1,150 lb/hr, 175 psi Max., 377°F Max.
Category
Cast Iron C-Pattern 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

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 INTERNATIONAL
Manufacturer Part Number
175A4
Type
1,150 lb/hr, C Pattern
FNPT
1 in
Max.
175 psi
Float Material
Stainless Steel
Manufacturer Series
A
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 Steam Trap is a Cast Iron C-Pattern Float & Thermostatic Steam Trap (MPN 175A4) designed for horizontal installation. It features a 1 in FNPT connection, a capacity of 1,150 lb/hr, and a maximum operating pressure of 175 psi with a maximum temperature of 377°F. The float is constructed from Stainless Steel, and it is part of Manufacturer Series A.

Frequently Asked Questions

What is the Armstrong International 175A4 steam trap used for?

The Armstrong International 175A4 cast iron C-pattern float & thermostatic steam trap is used to automatically drain condensate from steam lines while preventing steam loss. It is ideal for industrial heating, process steam systems, and heat exchangers requiring reliable condensate removal at pressures up to 175 psi.

What are the specifications of the Armstrong 175A4 steam trap?

The Armstrong 175A4 steam trap has a 1 in FNPT connection, a capacity of 1,150 lb/hr, maximum pressure of 175 psi, and maximum temperature of 377°F. It features a stainless steel float, horizontal installation orientation, and is part of Manufacturer Series A. The body is cast iron with a C pattern design.

Where to buy the Armstrong 175A4 steam trap worldwide?

3G Electric supplies the Armstrong International 175A4 steam trap to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this cast iron C-pattern float & thermostatic steam trap.

How to install the Armstrong 175A4 steam trap?

Install the Armstrong 175A4 steam trap horizontally with the inlet and outlet aligned per piping flow direction. Ensure proper support to avoid stress on connections. Use a strainer upstream to protect the stainless steel float from debris. Follow Armstrong's guidelines for orientation and condensate drainage to maximize service life.

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 c-pattern 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
Steam Trap: Cast Iron, 1 1/2 in FNPT, 3,100 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 75A6)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1 1/2 in FNPT, 3,100 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 75A6)
Steam Trap: Cast Iron, 1 1/4 in FNPT, 2,500 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 75A5)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1 1/4 in FNPT, 2,500 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 75A5)
Steam Trap: Cast Iron, 1 in FNPT, 2,100 lb/hr, 15 psi Max., 377°F Max., C Pattern (MPN 15B4)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1 in FNPT, 2,100 lb/hr, 15 psi Max., 377°F Max., C Pattern (MPN 15B4)
Steam Trap: Cast Iron, 2 in FNPT, 7,500 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 75A8)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 2 in FNPT, 7,500 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 75A8)
Steam Trap: Cast Iron, 1 in FNPT, 1,800 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 754A4)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1 in FNPT, 1,800 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 754A4)
Steam Trap: Cast Iron, 1 1/2 in FNPT, 3,100 lb/hr, 15 psi Max., 377°F Max., C Pattern (MPN 15B6)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1 1/2 in FNPT, 3,100 lb/hr, 15 psi Max., 377°F Max., C Pattern (MPN 15B6)

More from ARMSTRONG INTERNATIONAL

View all ARMSTRONG INTERNATIONAL parts
Steam Trap: Cast Iron, 2 in FNPT, 7,100 lb/hr, 175 psi Max., 377°F Max., C Pattern (MPN 175A8)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 2 in FNPT, 7,100 lb/hr, 175 psi Max., 377°F Max., C Pattern (MPN 175A8)
Steam Trap: Cast Iron, 1/2 in FNPT, 1,200 lb/hr, 15 psi Max., 353°F Max., C Pattern (MPN 15B2)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1/2 in FNPT, 1,200 lb/hr, 15 psi Max., 353°F Max., C Pattern (MPN 15B2)
Steam Trap: Cast Iron, 3/4 in FNPT, 1,400 lb/hr, 30 psi Max., 353°F Max., C Pattern (MPN 30B3)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 3/4 in FNPT, 1,400 lb/hr, 30 psi Max., 353°F Max., C Pattern (MPN 30B3)
Steam Trap: Cast Iron, 1 1/4 in FNPT, 2,800 lb/hr, 30 psi Max., 377°F Max., C Pattern (MPN 30B5)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1 1/4 in FNPT, 2,800 lb/hr, 30 psi Max., 377°F Max., C Pattern (MPN 30B5)
Steam Trap: Cast Iron, 3/4 in FNPT, 1,800 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 75A3)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 3/4 in FNPT, 1,800 lb/hr, 75 psi Max., 377°F Max., C Pattern (MPN 75A3)
Steam Trap: Cast Iron, 1 1/4 in FNPT, 2,000 lb/hr, 175 psi Max., 377°F Max., C Pattern (MPN 175A5)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1 1/4 in FNPT, 2,000 lb/hr, 175 psi Max., 377°F Max., C Pattern (MPN 175A5)
Steam Trap: Cast Iron, 3/4 in FNPT, 1,150 lb/hr, 175 psi Max., 377°F Max., C Pattern (MPN 175A3)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 3/4 in FNPT, 1,150 lb/hr, 175 psi Max., 377°F Max., C Pattern (MPN 175A3)
Steam Trap: Cast Iron, 1 1/2 in FNPT, 3,100 lb/hr, 175 psi Max., 377°F Max., C Pattern (MPN 175A6)
ARMSTRONG INTERNATIONAL
Steam Trap: Cast Iron, 1 1/2 in FNPT, 3,100 lb/hr, 175 psi Max., 377°F Max., C Pattern (MPN 175A6)