Rotary unions · General-purpose

101 Series Rotary Union — general-purpose sealing for water, hot water & thermic fluid

The 101 Series Rotary Union is a general-purpose rotary union featuring a brass housing with stainless steel internal components. Designed for water, hot water, and thermic fluid applications, it provides reliable sealing, efficient fluid transfer, and long-lasting performance.

Up to 3500 RPM
Up to 15 bar
¼″ to 2″ BSP
Size range
¼″ to 2″ BSP
Max speed — ¼″ to 1″
3500 RPM
Max pressure — water
15 bar
Housing
Forged brass
Key features

Six design choices built around reliability and easy maintenance

Single & dual flow design

Available for different fluid transfer applications.

Self-supported design

Robust self-supported construction for reliable operation.

Balanced mechanical sealing

Balanced mechanical sealing for reliable and efficient performance.

Different sealing options

Various sealing options available to suit different operating conditions.

Forged brass housing

Housing made from forged brass for strength and durability.

Easy & quick component changes

Sealing components can be changed easily and quickly, reducing maintenance time.

Operating conditions

Rated across water, hot water, and hot oil service

Parameter & rating

MediaWater, hot water, hot oil & general purpose
Max. speed — ¼″ to 1″3500 RPM
Max. speed — 1¼″ to 2″750 RPM
Max. pressure — water15 bar
Max. pressure — hot water15 bar
Max. pressure — hot oil10 bar
Max. temperature — water95°C
Max. temperature — hot oil70°C
Size¼″ to 2″ BSP or QRS type
Connection typeISO 228 / NPT / Metric
OptionalQuick release nipple (flange end)

Need help specifying the right sealing option?

Contact the Carbon Rotofluid technical team for sealing option guidance, dimensional drawings, or stock availability in your required size.