We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

DUFF-NORTON Rotary Union: Straight, Plain Cast Iron, 2 Passages - Cast Iron Rotating Joints & Unions
DUFF-NORTONCast Iron Rotating Joints & Unions

DUFF-NORTON Rotary Union: Straight, Plain Cast Iron, 2 Passages

The DUFF-NORTON Rotary Union is a straight, plain cast iron rotating joint with 2 passages, featuring a 1-1/4" threaded rotating shaft (MPN 440322C). It is designed for a maximum speed of 700 rpm and uses a carbon…

SKU 3G-OTH-479744

Also listed as: 440322 C · 440322-C

Brand
DUFF-NORTON
Item
Rotary Union: Straight, Plain Cast Iron, 2 Passages
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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

DUFF-NORTON
Manufacturer Part Number
440322C
Type
Plain Cast Iron
Passages
2
Maximum Speed
700 rpm
Seal Material
Carbon Graphite
Threaded Rotating Shaft
1-1/4 "
Rotating Shaft Thread Size
1-1/4 "

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

The DUFF-NORTON Rotary Union is a straight, plain cast iron rotating joint with 2 passages, featuring a 1-1/4" threaded rotating shaft (MPN 440322C). It is designed for a maximum speed of 700 rpm and uses a carbon graphite seal material. This product is part of 3G Electric's industrial solutions, where we interpret customer demand and deliver genuine equipment across 14 departments, with specialist depth in combustion, pumps, and controls.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a DUFF-NORTON rotary union used for?

A DUFF-NORTON rotary union transfers fluid or gas from a stationary supply line into a rotating shaft or drum. It is commonly used in industrial machinery such as paper mills, printing presses, and material handling equipment where continuous rotation and media transfer are required.

What are the specifications of the DUFF-NORTON 440322C rotary union?

The DUFF-NORTON 440322C is a straight, plain cast iron rotary union with 2 passages. It has a 1-1/4" threaded rotating shaft, a maximum speed of 700 rpm, and a carbon graphite seal material. This model is designed for reliable media transfer in rotating equipment.

Where to buy a DUFF-NORTON rotary union worldwide?

3G Electric supplies the DUFF-NORTON rotary union worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to source this genuine part for your application across any of our 14 industrial departments.

How to install a DUFF-NORTON rotary union?

Install the DUFF-NORTON rotary union by aligning the threaded rotating shaft with the machine's rotating component. Apply thread sealant to the 1-1/4" connection, tighten to the manufacturer's torque specification, and ensure the stationary port is properly supported. Verify free rotation before pressurizing the system.

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.

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
Straight, plain cast iron rotating joint with one passage and a 2" threaded rotating shaft. Features a carbon graphite seal and is rated for a maximum speed of 700 rpm. Used to transfer fluid or gas from a stationary supply line into rotating machinery
DUFF-NORTON
Straight, plain cast iron rotating joint with one passage and a 2" threaded rotating shaft. Features a carbon graphite seal and is rated for a maximum speed of 700 rpm. Used to transfer fluid or gas from a stationary supply line into rotating machinery
This DUFF-NORTON rotating joint is a straight, plain cast iron union with two passages. It features a 1-1/4" threaded rotating shaft and a carbon graphite seal, rated for a maximum speed of 700 rpm. Used to transfer fluid or gas from a stationary supply 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 1-1/4" threaded rotating shaft and a carbon graphite seal, rated for a maximum speed of 700 rpm. Used to transfer fluid or gas from a stationary supply into rotating machinery in industrial applications
This straight, plain cast iron rotating joint features a single passage and a 1/4" threaded rotating shaft. It is equipped with a carbon graphite seal and supports a maximum speed of 700 rpm. Commonly used to transfer fluid or air from a stationary supply line into rotating machinery such as rolls in industrial processing
DUFF-NORTON
This straight, plain cast iron rotating joint features a single passage and a 1/4" threaded rotating shaft. It is equipped with a carbon graphite seal and supports a maximum speed of 700 rpm. Commonly used to transfer fluid or air from a stationary supply line into rotating machinery such as rolls in industrial processing
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
Straight, plain cast iron rotating joint with 2 passages and a 2" threaded rotating shaft. Features a carbon graphite seal and a maximum speed of 700 rpm. Used to transfer fluid or gas from a stationary supply line into rotating machinery in industrial applications such as paper mills, steel processing, and material handling
DUFF-NORTON
Straight, plain cast iron rotating joint with 2 passages and a 2" threaded rotating shaft. Features a carbon graphite seal and a maximum speed of 700 rpm. Used to transfer fluid or gas from a stationary supply line into rotating machinery in industrial applications such as paper mills, steel processing, and material handling
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
Straight, plain cast iron rotating joint with one passage and a 2" threaded rotating shaft. Features a carbon graphite seal and a maximum speed of 700 rpm. Used to transfer fluid from a stationary supply line into a rotating shaft or drum in industrial machinery
DUFF-NORTON
Straight, plain cast iron rotating joint with one passage and a 2" threaded rotating shaft. Features a carbon graphite seal and a maximum speed of 700 rpm. Used to transfer fluid from a stationary supply line into a rotating shaft or drum in industrial machinery
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