DUFF-NORTON Plain Cast Iron Rotating Joint
The DUFF-NORTON Rotary Union is a straight, plain cast iron rotating joint with a single passage, designed for industrial fluid transfer. It features a 1-1/4" threaded rotating shaft (MPN 440319C), carbon graphite…
SKU 3G-OTH-479741
Also listed as: 440319 C · 440319-C
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.
Need installation or engineering help?
Ask a question
Product Description
The DUFF-NORTON Rotary Union is a straight, plain cast iron rotating joint with a single passage, designed for industrial fluid transfer. It features a 1-1/4" threaded rotating shaft (MPN 440319C), carbon graphite seal material, and a maximum speed of 700 rpm. 3G Electric interprets customer demand and delivers this genuine industrial component across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is a DUFF-NORTON rotary union used for?
A DUFF-NORTON rotary union transfers fluid (coolant, steam, thermal oil) from a stationary supply line into rotating machinery such as rolls, drums, or spindles. This straight, plain cast iron model with a 1-1/4" threaded shaft is common in paper, steel, and textile mills.
What are the specifications of the DUFF-NORTON 440319C rotary union?
The DUFF-NORTON 440319C is a single-passage, plain cast iron rotary union with a 1-1/4" threaded rotating shaft, carbon graphite seal, and maximum speed of 700 rpm. It is designed for industrial fluid transfer in demanding rotating equipment applications.
Where to buy a DUFF-NORTON rotary union worldwide?
3G Electric supplies the DUFF-NORTON 440319C rotary union worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this genuine component.
How to install a DUFF-NORTON rotary union?
Ensure the rotating shaft threads (1-1/4") are clean and match the machine's female port. Support the union to avoid side loads. Use a thread sealant compatible with the fluid. Do not exceed 700 rpm. Refer to the manufacturer's manual for torque and alignment specs.
Used in
Common applications for DUFF-NORTONDUFF-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.
