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

3G Electric
DUFF-NORTON Plain Cast Iron Rotary Union - Cast Iron Rotating Joints & Unions
DUFF-NORTONCast Iron Rotating Joints & Unions

DUFF-NORTON Plain Cast Iron Rotary Union

<p>The DUFF-NORTON 440144C is a plain cast iron rotary union designed for reliable fluid transfer in industrial applications. This single-passage union features a 1-1/2" threaded rotating shaft and a maximum speed of…

SKU 3G-OTH-479738

Also listed as: 440144 C · 440144-C

Brand
DUFF-NORTON
Item
Plain Cast Iron Rotary Union
Part Number
440144C
Category
Cast Iron Rotating Joints & Unions
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

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

DUFF-NORTON
Manufacturer Part Number
440144C
Type
Plain Cast Iron
Passages
1
Standards
SDWA
Bearing Type
Dual Bearings
Catalog Page
N/A
Fitting Type
Straight
Body Diameter
0.22 in
Maximum Speed
700 rpm
Overall Width
9.69 in
Seal Material
Carbon Graphite
Flow Direction
Single-Flow Flow Direction The direction of flow to or from the tank from supply and return lines.
For Fluid Type
Gases; Non-Potable Water; Oils
Overall Length
9.69 in
Thread Rotation
Right Hand
Fitting Material
Cast Iron
Country of Origin
USA (subject to change)
Internal Material
Plain Stainless Steel
Number of Passages
1 Number of Passages The number of independent flow channels in the joint or union.
Fitting Material Finish
Plain
Threaded Rotating Shaft
1-1/2"
Internal Fitting Material
Stainless Steel
Rotating Shaft Thread Size
1-1/2"
Stationary Port Thread Size
1-1/2 in
Elbow Outlet Connection Type
Threaded
Maximum Operating Temperature
375 °F
Minimum Operating Temperature
32 °F
Rotating Shaft Connection Type
Threaded
Stationary Port Connection Type
Threaded
Internal Fitting Material Finish
Plain
Stationary Connection to Body End
7.75 in
Operating Pressure for Fluid Types
302°F for Water; 347°F for Steam; 392°F for Hot Oil

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

DUFF-NORTON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

<p>The DUFF-NORTON 440144C is a plain cast iron rotary union designed for reliable fluid transfer in industrial applications. This single-passage union features a 1-1/2" threaded rotating shaft and a maximum speed of 700 rpm, with a carbon graphite seal for durability. It is suitable for use in various rotating machinery, such as rolls, drums, and spindles, where a robust and cost-effective joint is required.</p><p>As a Singapore-based supplier, 3G Electric offers this DUFF-NORTON rotary union with worldwide shipping. Request an SGD quote for your procurement needs, and enjoy GST handling for local buyers plus fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What are the key specifications of the DUFF-NORTON 440144C rotary union?

The DUFF-NORTON 440144C is a plain cast iron rotary union with 1 passage, a 1-1/2" threaded rotating shaft, a maximum speed of 700 rpm, and a carbon graphite seal material.

Can I get a quote in SGD and fast delivery in Singapore?

Yes, 3G Electric provides SGD quotes on request. For Singapore buyers, GST is handled, and we offer fast delivery across Singapore and Southeast Asia.

Used in

Common applications for DUFF-NORTON
Solar panel tracking — Duff-Norton LT series linear actuators adjust panel tilt angles with IP66 protection.
Material handling automation — LS series actuators position conveyor gates or diverters with 675 lbf capacity.
Agricultural equipment — LT actuators control vent openings or seed drill depth in dusty, outdoor conditions.
Industrial valve actuation — LT series with potentiometer feedback provides precise valve position control.
Medical equipment adjustment — LT actuators with low noise plastic nuts are used in patient bed or table positioning.
Packaging machinery — LS series actuators drive pusher arms or lift platforms in high-cycle indoor environments.
Not sure this is the right part? Photo-identify it

DUFF-NORTON Products

3G Electric supplies DUFF-NORTON cast iron rotating joints & unions. 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

More from DUFF-NORTON

View all DUFF-NORTON parts
DUFF-NORTON
DUFF-NORTON
Single-passage rotating joint with plain cast iron body and 1-1/4" threaded rotating shaft. Carbon graphite seal material supports maximum speed of 700 rpm. Used to transfer fluid from a stationary supply line into rotating machinery such as rolls, drums, or spindles
DUFF-NORTON
DUFF-NORTON
This DUFF-NORTON rotary union is a straight, plain cast iron rotating joint with a single passage. It features a 1-1/4" threaded rotating shaft and a carbon graphite seal, with a maximum speed of 700 rpm. Used to transfer fluids such as coolant, steam, or thermal oil from a stationary supply line into rotating machinery
DUFF-NORTON
DUFF-NORTON
This DUFF-NORTON rotating joint is a straight, plain cast iron union with two passages and a 1-1/2" threaded rotating shaft. It uses a carbon graphite seal and is rated for a maximum speed of 700 rpm. Typical applications include transferring fluid or air from a stationary supply line into rotating machinery in industrial settings such as mills and processing plants
This DUFF-NORTON rotating joint is a straight, plain cast iron union with two passages. It features a 1-1/2" threaded rotating shaft and a carbon graphite seal, with a maximum speed of 700 rpm. Used to transfer fluid or gas from a stationary supply line into rotating machinery in industrial applications
DUFF-NORTON
This DUFF-NORTON rotating joint is a straight, plain cast iron union with two passages. It features a 1-1/2" threaded rotating shaft and a carbon graphite seal, with a maximum speed of 700 rpm. Used to transfer fluid or gas from a stationary supply line into rotating machinery in industrial applications

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first