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

BELL & GOSSETT Steam Trap: Cast Iron, 1/2 in FNPT, 920 lb/hr, 125 psi Max., 450°F Max. - Standard Inverted-Bucket Steam Traps
BELL & GOSSETTStandard Inverted-Bucket Steam Traps

BELL & GOSSETT Steam Trap: Cast Iron, 1/2 in FNPT, 920 lb/hr, 125 psi Max., 450°F Max.

The BELL & GOSSETT B1125S-2 is a cast-iron standard inverted-bucket steam trap with an in-line configuration and horizontal installation orientation. It features 1/2-inch FNPT connections, a maximum capacity of 920…

SKU 3G-OTH-71403

Also listed as: B1125S2 · B1125S 2

Brand
BELL & GOSSETT
Item
Steam Trap: Cast Iron, 1/2 in FNPT, 920 lb/hr, 125 psi Max., 450°F Max.
Category
Standard Inverted-Bucket 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

BELL & GOSSETT
Manufacturer Part Number
B1125S-2
Type
920 lb/hr, Strainer Included
FNPT
1/2 in
Max.
125 psi
Configuration
In-line
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

BELL & GOSSETT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BELL & GOSSETT B1125S-2 is a cast-iron standard inverted-bucket steam trap with an in-line configuration and horizontal installation orientation. It features 1/2-inch FNPT connections, a maximum capacity of 920 lb/hr, a maximum pressure of 125 psi, and a maximum temperature of 450°F, and includes a strainer.

Frequently Asked Questions

What is a Bell & Gossett B1125S-2 steam trap used for?

The Bell & Gossett B1125S-2 is a cast-iron inverted-bucket steam trap used to automatically drain condensate from steam lines while preventing steam loss. It is commonly applied in industrial heating systems, process steam mains, and drip-leg applications where reliable, energy-efficient condensate removal is critical.

What are the specifications of the Bell & Gossett B1125S-2 steam trap?

The B1125S-2 has 1/2-inch FNPT connections, a maximum capacity of 920 lb/hr, a maximum pressure of 125 psi, and a maximum temperature of 450°F. It is an in-line, horizontal-installation cast-iron inverted-bucket trap with an integral strainer. The manufacturer part number is B1125S-2.

Where to buy a Bell & Gossett B1125S-2 steam trap worldwide?

3G Electric supplies the Bell & Gossett B1125S-2 steam trap to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this cast-iron inverted-bucket trap.

How to install a Bell & Gossett inverted-bucket steam trap?

Install the B1125S-2 horizontally with the inlet and outlet in line. Ensure the trap is level and the strainer is oriented for easy blowdown. Pipe the discharge to a condensate return line. Always follow the manufacturer's instructions for proper sizing and to avoid water hammer or backpressure issues.

Used in

Common applications for BELL & GOSSETT
Steam heating systems — Bell & Gossett cast iron F&T steam traps (FT030H-5) for condensate removal in commercial buildings
Hydronic air elimination — Bell & Gossett vertical-discharge air vents (MPN 87) for water systems in HVAC applications
Steam trap maintenance — Bell & Gossett cover gaskets (MPN 405602) and repair kits (MPN 405620) for field servicing of existing traps
Low-pressure steam processes — Bell & Gossett brass offset thermostatic traps (MPN 17C-S-2-25) for condensate drainage in industrial equipment
Replacement of thermostatic elements — Bell & Gossett steam trap elements (MPN 405628) for 17C series traps in process steam lines

BELL & GOSSETT Products

3G Electric supplies BELL & GOSSETT standard 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
Steam Trap: Cast Iron, 1/2 in FNPT, 930 lb/hr, 180 psi Max., 450°F Max., Strainer Included (MPN B1180S-2)
BELL & GOSSETT
Steam Trap: Cast Iron, 1/2 in FNPT, 930 lb/hr, 180 psi Max., 450°F Max., Strainer Included (MPN B1180S-2)
Steam Trap: Cast Iron, 1/2 in FNPT, 1,200 lb/hr, 75 psi Max., 450°F Max., Strainer Included (MPN B1075S-2)
BELL & GOSSETT
Steam Trap: Cast Iron, 1/2 in FNPT, 1,200 lb/hr, 75 psi Max., 450°F Max., Strainer Included (MPN B1075S-2)
Steam Trap: Cast Iron, 3/4 in FNPT, 1,200 lb/hr, 75 psi Max., 450°F Max., Strainer Included (MPN B1075S-3)
BELL & GOSSETT
Steam Trap: Cast Iron, 3/4 in FNPT, 1,200 lb/hr, 75 psi Max., 450°F Max., Strainer Included (MPN B1075S-3)
Steam Trap: Cast Iron, 3/4 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Included (MPN B0150S-3)
BELL & GOSSETT
Steam Trap: Cast Iron, 3/4 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Included (MPN B0150S-3)
Steam Trap: Cast Iron, 3/4 in FNPT, 1,440 lb/hr, 30 psi Max., 450°F Max., Strainer Included (MPN B1030S-3)
BELL & GOSSETT
Steam Trap: Cast Iron, 3/4 in FNPT, 1,440 lb/hr, 30 psi Max., 450°F Max., Strainer Included (MPN B1030S-3)
Steam Trap: Cast Iron, 1/2 in FNPT, 1,440 lb/hr, 30 psi Max., 450°F Max., Strainer Included (MPN B1030S-2)
BELL & GOSSETT
Steam Trap: Cast Iron, 1/2 in FNPT, 1,440 lb/hr, 30 psi Max., 450°F Max., Strainer Included (MPN B1030S-2)

More from BELL & GOSSETT

View all BELL & GOSSETT parts
Steam Trap: Cast Iron, 1/2 in FNPT, 690 lb/hr, 80 psi Max., 450°F Max., Strainer Not Included (MPN B0080A-2)
BELL & GOSSETT
Steam Trap: Cast Iron, 1/2 in FNPT, 690 lb/hr, 80 psi Max., 450°F Max., Strainer Not Included (MPN B0080A-2)
Steam Trap: Cast Iron, 3/4 in FNPT, 690 lb/hr, 80 psi Max., 450°F Max., Strainer Not Included (MPN B0080A-3)
BELL & GOSSETT
Steam Trap: Cast Iron, 3/4 in FNPT, 690 lb/hr, 80 psi Max., 450°F Max., Strainer Not Included (MPN B0080A-3)
Steam Trap: Cast Iron, 3/4 in FNPT, 930 lb/hr, 180 psi Max., 450°F Max., Strainer Included (MPN B1180S-3)
BELL & GOSSETT
Steam Trap: Cast Iron, 3/4 in FNPT, 930 lb/hr, 180 psi Max., 450°F Max., Strainer Included (MPN B1180S-3)
Steam Trap: Cast Iron, 1/2 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Not Included (MPN B0150A-2)
BELL & GOSSETT
Steam Trap: Cast Iron, 1/2 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Not Included (MPN B0150A-2)
Steam Trap: Cast Iron, 1/2 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Included (MPN B0150S-2)
BELL & GOSSETT
Steam Trap: Cast Iron, 1/2 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Included (MPN B0150S-2)
Steam Trap: Cast Iron, 1/2 in FNPT, 690 lb/hr, 125 psi Max., 450°F Max., Strainer Not Included (MPN B0125A-2)
BELL & GOSSETT
Steam Trap: Cast Iron, 1/2 in FNPT, 690 lb/hr, 125 psi Max., 450°F Max., Strainer Not Included (MPN B0125A-2)
Steam Trap: Cast Iron, 3/4 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Not Included (MPN B0150A-3)
BELL & GOSSETT
Steam Trap: Cast Iron, 3/4 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Not Included (MPN B0150A-3)
Steam Trap: Cast Iron, 3/4 in FNPT, 920 lb/hr, 125 psi Max., 450°F Max., Strainer Included (MPN B1125S-3)
BELL & GOSSETT
Steam Trap: Cast Iron, 3/4 in FNPT, 920 lb/hr, 125 psi Max., 450°F Max., Strainer Included (MPN B1125S-3)