Norman G. Clark offer Deublin Hot-Media rotating unions with SAE-flanges. The requirements that the new Deublin Hot-Media rotating unions with SAE-flange have to meet are short assembly time, secure sealing and increase of service life in the field. These rotating unions are designed for use in calendars, in paper and plastic machines as well as in machines for laminating and coating.
Models were often mounted onto the supply line by means of adaptors or screw joints. These connections are complex and time-consuming to mount and often need a lot of force or power to be installed or serviced. Even when done by experienced and qualified servicemen, they are still error prone. Ensuing damages or warranty cases may result due to damaged bearings or seal rings (i.e. reduction of service life).
Experience shows that any sort of adaptation leads to flow diameter restriction which, in turn, results in lower heating capacity and higher pressure losses.
SAE flanges can eliminate these problems. Connections are simple as four screws, one O-ring and a retaining plate are needed to connect the supply lines to the rotating union. An assembly tool that users need is an Allen wrench.
The supply lines can be connected tension-free in a short amount of time, reducing both installation and service time. No large tools are needed for the disassembly. These lead to less machine downtime, resulting in cost advantages for the user.
The Deublin Hot-Media rotating unions with SAE-flanges have the following advantages:
- No more side-loaded installation
- The service life and energy efficiency of the rotating union increases due to continuous volume flow to the cylinder and calendar
- No losses in pressure and heat capacity
Furthermore, the design with SAE-flanges offer the possibility to realise a secure sealing and proper connection pursuant to the standards of DIN 4754 “Heat transfer plants with organic heat carriers, safety-related requirements, inspection”. The Deublin Hot-Media rotating unions with SAE-flanges are an alternative to adapters. The standard Deublin Hot-Media rotating unions are available for temperatures up to 120°C, in nominal diameters of DN 40 up to DN 100 and in monoflow and duoflow designs. All rotating unions have a stable bearing design and a secondary sealing with diaphragm, which avoids relative movements at the sealing gasket. The springs are located outside the media flow in order to allow high flows with low pressure loss.