DEUBLIN Multipassage - rotating unions
MPSS - rotating unions: The solution for demanding tasks at low rotational speed


In many industrial processes, different media need to be fed through the supply line into rotating machine components, such as cylinders, rollers and coupling units, and back out again.

The number of revolutions and the linear velocity are not demanding enough to justify the use of a “balanced mechanical seal” rotating union design, however they are too demanding for an “O-ring” to be a sufficient form of sealing technology.

The latter would perish within a very short time due to the pressure and temperature, resulting in leakages.The solution is as follows: Multi-passage soft-seal (MPSS) rotating unions by DEUBLIN.


Elastomer-sealed multi-passage rotating unions by DEUBLIN are optimally designed for the operating parameters of the respective application, such as rotational speed, torque, medium pressure, operating temperature, size and other influential factors. Hardened surfaces are generally used in order to guarantee minimal wear and tear and a long life span.

Rotating union with plastomeric sealsPlastomer seals - a combination of plastic and elastomers - ensure even higher resistance at high temperatures and pressures than conventional elastomers. The geometry of the seal and the interaction of the seal and rotating body seal surface can be modified according to its use in terms of the medium, rotational speed and pressure.

DEUBLIN‘s exclusive chemical and geometric sealing combination offers maximum performance and life span while simultaneously reducing abrasion and torque.

Typical areas of application for multi-passage rotating unions

- Steel industry: Turret heads for pouring ladles in continuous casting processes
- Plastic and rubber industry:
Injection moulding and rotary table applications, tyre manufacturing, bottle manufacturing
- Machining operations:
Workpiece mounting and clamping functions, multiple-axle machining centre
- Air and space travel industry and flight simulation
- Industrial cranes
- Rail transport
- De-scaling
and much more…

DEUBLIN Multi-Passage unions


DEUBLIN uses information from operators and constructors to develop the most efficient solution from series models, modified series models or client-specific products, whereby the number of channels can currently reach 36, even in combination with a central channel for controlling sensor technology and the power supply or with slip ring transmitters.

Pioneering technology for your success.

Make your enquiry now.

More information in our catalogue.

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Multi-Passage Soft-Seal Rotating Unions Now Available

A new product line of multi-passage soft-seal rotating unions is now available from Deublin Company. Rotating unions are components in a broad range of equipment applications that require connection between stationary supply lines, and rotating equipment including cylinders, rolls, spindles and clutches.

While rotating unions are used to convey virtually all types of liquid or gas (steam, water, coolant, hydraulic or cutting fluids, inert gas or vacuum), multi-passage rotating unions are used when more than one media must be conveyed simultaneously using different passages. Soft-seal refers to the Plastomeric seal technology, which is a combination of plastic and elastomer, with a proprietary chemistry and geometry that differs by application.

Applications for Deublin multi-passage soft-seal unions include machine tools, ladle turrets used in steel continuous casting, and metal coil winding, plastic and rubber manufacturing, and more.

Deublin offers standard, semi-custom, and custom options depending on the requirements of each application. Standard features include 2-8 passages, while custom passages for the largest applications can be 22 or more. Port types include NPT, BSP, or SAE.

A new brochure is available in print (request MPSS142 US), or via the Deublin website:

Rotating Unions
Electrical Slip Rings
Type C Steam & Hot Oil Unions
Plane & Self-Aligning Swivels
Steam Joints / Siphons
Multi-Passage Soft-Seal Unions
Service Kits
Custom Applications



Deublin Rotary Unions and Swivel Joints Authorized Distributor

信德迈科技(北京)有限公司 CNMEC Technology (Beijing) Co., Ltd

Add:Rm2115,Tower 1, Wangjing SOHO, Chaoyang District, Beijing 100029,China
Tel:010-8428 2935, 8428 9077, 13910962635
fax:010-8428 8762