Rotary units

Stainless steel series

The stainless steel variant of the rotary union or rotary distributor series is particularly suitable for water/cooling water, hydraulics or the outdoor area, as well as for higher pressures.

Executions:
Rotary distributors are subdivided according to the number of their channels and according to the nominal width or the connection thread:

Number of channels available: 1, 2, 4, 6 and 8
Connection sizes: M5 to G 1″ (see individual series)

General:
The values given below are the maximum parameters that can be achieved.
Technical advice is required when using below 0 °C or when several parameters coincide in the limit range.
Please inquire about your desired rotary union directly here:
Request infos on our contact page or alternatively fill out the rotary union project questionnaire.

Material
Housing: stainless steel
Shaft: stainless steel

Media/hydraulic fluids
Hydraulic oil,
compressed air,
vacuum,
Water on request

In case of different media,
we recommend providing a channel as a leakage line.

Example
There will be two channels
for compressed air and
one channel neede
for hydraulics

Recommendation:
4-channel rotatory union
DDF-4-H

Rotary unions, stainless steel series
Type: DDF-…-H

Channels:	1, 2, 4, 6 and 8
Connection:	Information according to Standrd series
Rotation speed:	max. 3000 rpm M5 – G 1/4″ max. 2000 rpm G 1/2″ max. 1500 rpm G 3/4″ max. 1200 rpm G 1″
Pressure:	-0,95 bar to 16 bar DDF-…-H -0,95 bar to 100 bar DDF-2/4/6/8-H > auf Anfrage
Temperature range:	0°C to +80°C
Medium:	Hydraulic oil, compressed air, vacuum, Water on request
Filtering	liquid media: 5 µm gaseous media: 30 µm
Data sheets:	1 Channel (DDF-1-H) 2 Channel (DDF-2-H) 4 Channel (DDF-4-H) 6 Channel (DDF-6-H) 8 Channel (DDF-8-H)
on request:	further pressure and temperature ranges, Connection sizes, Etc

Example of type
designation:

DDF-2-1/4 = 2 channels,
G1/4″ connection

DDF-H:
Dimensions as standard,
but housing made
of stainless steel

Rotary union

full brochure,
Scrollable version,
Din A4, 16 pages,
German/English

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