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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 and a 1-1/2" threaded rotating shaft (MPN 440145C). It features a carbon graphite seal and a maximum speed of 700 rpm. 3G…

SKU 3G-OTH-479739

Brand
DUFF-NORTON
Item
Rotary Union: Straight, Plain Cast Iron, 2 Passages
Category
Cast Iron Rotating Joints & Unions
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Technical Specifications

DUFF-NORTON
Manufacturer Part Number
440145C
Type
Plain Cast Iron
Passages
2
Maximum Speed
700 rpm
Seal Material
Carbon Graphite
Threaded Rotating Shaft
1-1/2"
View Full Spec Sheet

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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 and a 1-1/2" threaded rotating shaft (MPN 440145C). It features a carbon graphite seal and a maximum speed of 700 rpm. 3G Electric interprets your demand for this OEM-specified union, sourcing it across 14 industrial departments with specialist depth in rotating equipment and controls.

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 rotating machinery. This straight, plain cast iron model with 2 passages and a 1-1/2" threaded shaft is common in paper, steel, and textile mills where reliable media transfer at up to 700 rpm is required.

What are the specifications of the DUFF-NORTON 440145C rotary union?

The DUFF-NORTON 440145C is a straight, plain cast iron rotary union with 2 passages, a 1-1/2" threaded rotating shaft, and a carbon graphite seal. Maximum speed is 700 rpm. It is designed for OEM-specified rotating joints in industrial fluid or air systems.

Where to buy a DUFF-NORTON rotary union worldwide?

3G Electric supplies the DUFF-NORTON rotary union MPN 440145C to customers worldwide. We interpret your demand, source the correct OEM-specified union, and handle full logistics and customs clearance for delivery to your facility. Contact us for availability and lead time.

How to install a DUFF-NORTON rotary union?

Ensure the rotating shaft threads (1-1/2") are clean and properly aligned with the machine. Support the union to avoid side loads. Use a thread sealant compatible with the media. Do not exceed 700 rpm or the carbon graphite seal's pressure rating. Follow the manufacturer's torque specifications.

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.

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DUFF-NORTON Rotary Union: Straight, Plain Cast Iron, 1 Passages, 1/4" Threaded Rotating Shaft, Plain (MPN 730432C). Key specifications — Maximum Speed: 700 rpm; Brand: DUFF-NORTON; Seal Material: Carbon Graphite; Rotating Shaft Thread Size: 1/4".
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DUFF-NORTON Rotary Union: Straight, Plain Cast Iron, 2 Passages, 1-1/4 " Threaded Rotating Shaft (MPN 440322C). Key specifications — Maximum Speed: 700 rpm; Brand: DUFF-NORTON; Seal Material: Carbon Graphite; Rotating Shaft Thread Size: 1-1/4 ".
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DUFF-NORTON Rotary Union: Straight, Plain Cast Iron, 2 Passages, 1-1/4 " Threaded Rotating Shaft (MPN 440322C). Key specifications — Maximum Speed: 700 rpm; Brand: DUFF-NORTON; Seal Material: Carbon Graphite; Rotating Shaft Thread Size: 1-1/4 ".
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DUFF-NORTON Rotary Union: Straight, Plain Cast Iron, 1 Passages, 1-1/4 " Threaded Rotating Shaft (MPN 440319C). Key specifications — Maximum Speed: 700 rpm; Brand: DUFF-NORTON; Seal Material: Carbon Graphite; Rotating Shaft Thread Size: 1-1/4 ".
DUFF-NORTON Rotary Union: Straight, Plain Cast Iron, 1 Passages, 2" Threaded Rotating Shaft, Plain (MPN 440465C). Key specifications — Maximum Speed: 700 rpm; Brand: DUFF-NORTON; Seal Material: Carbon Graphite.
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DUFF-NORTON Rotary Union: Straight, Plain Cast Iron, 1 Passages, 2" Threaded Rotating Shaft, Plain (MPN 440465C). Key specifications — Maximum Speed: 700 rpm; Brand: DUFF-NORTON; Seal Material: Carbon Graphite.
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