DUFF-NORTON Plain Cast Iron Rotating Joint
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 440321C). It is designed for a maximum speed of 700 rpm and uses a carbon…
SKU 3G-OTH-479743
Also listed as: 440321 C · 440321-C
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
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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 440321C). It is designed for a maximum speed of 700 rpm and uses a carbon graphite seal material. 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 or gas from a stationary supply line into rotating machinery. This straight, plain cast iron model with 2 passages and a 1-1/4" threaded shaft is common in industrial applications like paper mills, steel processing, and packaging lines where reliable rotary joints are needed.
What are the specifications of the DUFF-NORTON 440321C rotary union?
The DUFF-NORTON 440321C rotary union is a straight, plain cast iron unit with 2 passages. It has a maximum speed of 700 rpm, a carbon graphite seal, and a 1-1/4" threaded rotating shaft. This genuine component is supplied by 3G Electric, which sources across 14 industrial departments.
Where to buy a DUFF-NORTON rotary union worldwide?
3G Electric supplies the DUFF-NORTON 440321C rotary union to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance for international delivery. Contact us to order this genuine cast iron rotating joint with a 1-1/4" threaded shaft.
How to install a DUFF-NORTON rotary union?
Install the DUFF-NORTON rotary union by aligning the 1-1/4" threaded rotating shaft with the machine's rotating connection. Use proper thread sealant and avoid overtightening. Ensure the carbon graphite seal is lubricated per manufacturer guidelines. 3G Electric can provide sourcing support for this component.
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.
