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

BARNES & JONES Steam Trap Cage Unit: For Barnes and Jones - Thermostatic Cage Units
BARNES & JONESThermostatic Cage Units

BARNES & JONES Steam Trap Cage Unit: For Barnes and Jones

The BARNES & JONES Steam Trap Cage Unit (MPN 1721) is a thermostatic cage unit designed for use with the 122A and 122S models. It is compatible with the 122 series and is manufactured by BARNES & JONES.

SKU 3G-OTH-69401

Brand
BARNES & JONES
Item
Steam Trap Cage Unit: For Barnes and Jones
Category
Thermostatic Cage Units
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

BARNES & JONES
Manufacturer Part Number
1721
Product Type
Steam Trap Cage Unit
Compatible Series
122
Compatible Manufacturer Model Number
122A

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

BARNES & JONES Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BARNES & JONES Steam Trap Cage Unit (MPN 1721) is a thermostatic cage unit designed for use with the 122A and 122S models. It is compatible with the 122 series and is manufactured by BARNES & JONES.

Frequently Asked Questions

What is the Barnes & Jones Steam Trap Cage Unit used for?

The Barnes & Jones Steam Trap Cage Unit (MPN 1721) is a thermostatic cage unit used to regulate steam condensate discharge in industrial steam systems. It is designed for use with the 122A and 122S models in the 122 series, ensuring efficient steam trap operation in process heating and HVAC applications.

What are the specifications of the Barnes & Jones Steam Trap Cage Unit?

The Barnes & Jones Steam Trap Cage Unit (MPN 1721) is a thermostatic cage unit compatible with the 122 series, specifically models 122A and 122S. It is manufactured by Barnes & Jones and is designed as a direct replacement for steam trap maintenance in industrial systems.

Where to buy the Barnes & Jones Steam Trap Cage Unit worldwide?

3G Electric supplies the Barnes & Jones Steam Trap Cage Unit (MPN 1721) worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this thermostatic cage unit for your steam system needs.

How to install the Barnes & Jones Steam Trap Cage Unit?

To install the Barnes & Jones Steam Trap Cage Unit (MPN 1721), first isolate the steam trap and relieve pressure. Remove the old cage unit, clean the seating surfaces, and insert the new unit. Tighten to manufacturer torque specs. Always follow generic steam trap best practices and consult the system manual for safety.

Used in

Common applications for BARNES & JONES
Steam heating systems in commercial buildings — Barnes & Jones FT15-B6 repair kit for Armstrong 15-B6 traps
Process steam lines in industrial plants — Barnes & Jones FT30-B8 repair kit for Armstrong 30-B8 traps
Condensate return systems in power generation — Barnes & Jones FT015H repair kit for Hoffman FT015H traps
HVAC steam distribution in hospitals — Barnes & Jones FT15-B2 repair kit for Armstrong 15-B2 traps
Food processing steam systems — Barnes & Jones FT15-B4 repair kit for Armstrong 15-B4 traps
Chemical plant steam tracing — Barnes & Jones FT30-B6 repair kit for Armstrong 30-B6 traps

BARNES & JONES Products

3G Electric supplies BARNES & JONES thermostatic cage units. 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 Cage Unit: For Barnes and Jones, 134A/134S (MPN 1929)
BARNES & JONES
Steam Trap Cage Unit: For Barnes and Jones, 134A/134S (MPN 1929)
Steam Trap Cage Unit: For Sterling, 750 (MPN 3472)
BARNES & JONES
Steam Trap Cage Unit: For Sterling, 750 (MPN 3472)
Steam Trap Cage Unit: For Sarco (MPN 3146)
BARNES & JONES
Steam Trap Cage Unit: For Sarco (MPN 3146)
Steam Trap Cage Unit: For Warren Webster (MPN 1972)
BARNES & JONES
Steam Trap Cage Unit: For Warren Webster (MPN 1972)
Steam Trap Cage Unit: For Marsh, #1 (MPN 1927/C)
BARNES & JONES
Steam Trap Cage Unit: For Marsh, #1 (MPN 1927/C)
Steam Trap Cage Unit: For Warren Webster (MPN 1985)
BARNES & JONES
Steam Trap Cage Unit: For Warren Webster (MPN 1985)

More from BARNES & JONES

View all BARNES & JONES parts
Steam Trap Cage Unit: For Dunham-Bush/Hoffman/Nicholson/Sarco/Warren Webster, 147, For 147A (MPN 4326)
BARNES & JONES
Steam Trap Cage Unit: For Dunham-Bush/Hoffman/Nicholson/Sarco/Warren Webster, 147, For 147A (MPN 4326)
Steam Trap Cage Unit: 134A/134S, For 134A/134S (MPN 6929)
BARNES & JONES
Steam Trap Cage Unit: 134A/134S, For 134A/134S (MPN 6929)
Steam Trap Cage Unit: 122A/122S, For 122A/122S (MPN 6721)
BARNES & JONES
Steam Trap Cage Unit: 122A/122S, For 122A/122S (MPN 6721)
Steam Trap Cage Unit: For Mepco Dunham Bush, 3C (MPN 2163/C)
BARNES & JONES
Steam Trap Cage Unit: For Mepco Dunham Bush, 3C (MPN 2163/C)
Steam Trap Cage Unit: For Dunham-Bush/Hoffman/Nicholson/Sarco/Warren Webster, 8C (MPN 3507)
BARNES & JONES
Steam Trap Cage Unit: For Dunham-Bush/Hoffman/Nicholson/Sarco/Warren Webster, 8C (MPN 3507)
Steam Trap Cage Unit: For Dunham-Bush/Hoffman/Nicholson/Sarco/Warren Webster (MPN 4117)
BARNES & JONES
Steam Trap Cage Unit: For Dunham-Bush/Hoffman/Nicholson/Sarco/Warren Webster (MPN 4117)
Steam Trap Cage Unit: For Sarco (MPN 5000/C)
BARNES & JONES
Steam Trap Cage Unit: For Sarco (MPN 5000/C)
Steam Trap Cage Unit: For Trane (MPN 4320/C)
BARNES & JONES
Steam Trap Cage Unit: For Trane (MPN 4320/C)