Dielectric Unions
Dielectric unions joining a steel pipe thread to a brass connection — a union nut, two tail-pieces, an EPDM gasket and an ABS sleeve keep the dissimilar metals electrically separated. Ideal for water heaters, storage and processing tanks, steam, gas and FCU / AHU connections.
Technical Data
| Dielectric Unions — specification | |
|---|---|
| Size range | 1/2"–2" (15–50 mm) |
| Max pressure | 17.2 bar (250 psi) |
| Max temperature | 82 °C (180 °F) |
| Connections | Steel × brass · F×F / F×M |
| Gasket / insert | EPDM / ABS |
| Series | DUFF · DUFM |
Datasheet & Documents
The official Dielectric Unions datasheet — specification, materials, standards and the complete dimension tables.
ISO 9001:2015 certified quality
How to Order
Also in This Range
Questions & Answers
What is a dielectric union?
A dielectric union is a threaded pipe union with an insulating sleeve and gasket that separates the two halves electrically. It prevents galvanic corrosion where dissimilar metals meet, such as a steel pipe connected to copper or brass at a water heater.
What size range do you supply for dielectric unions?
1/2"–2" (15–50 mm). Other sizes can usually be supplied on request — send your requirement for confirmation.
Is a technical datasheet available?
Yes — the official YTM Pipe datasheet with dimensions, materials and standards can be downloaded on this page.
How do I get a price?
Send size, specification and quantity through the Request-a-Quote form, WhatsApp or [email protected] — our team responds within one business day.
Dielectric Unions. Specified. Checked. Delivered.
Manufactured and supplied to the governing standard, inspected and documented before dispatch.