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UNKF Rotary joints

RECOMMENDED APPLICATIONS:

  • Paper and Textile industries
  • Steam (up to 200°C)
  • Thermal Oil (up to 280°)
  • Working pressure 15 bar max

Series description:

  • 11003 monoflow, gray cast iron housing, from ND 15 to ND 25
  • 11053 duoflow, gray cast iron housing, from ND 15 to ND 25
  • 4002 monoflow, construction steel housing, from ND 32 to ND 50
  • 0052 duoflow, construction steel housing, from ND 32 to ND 50
  • 0062 duoflow, flanged, construction steel housing, from ND 32 to ND 50
  • 15003 monoflow, gray cast iron housing, from ND 65 to ND 100
  • 15003 duoflow, gray cast iron housing, from ND 65 to ND 100
  • 15063 duoflow, flanged, gray cast iron housing, from ND 65 to ND 100
  • 13062 monoflow, flanged, construction steel housing, from ND 100 to ND 125

Rotary joint type UNKF with spherical carbon sealing ring and maintenance free slide carbon bearings is available in monoflow and duoflow version.

High performance rotary joint design for transfer of steam and thermal oil in paper, textile and plastic industries. Through years of experience, it has been modified, redesigned and brought to perfection.
New sealing technology, robust slide bearings and sealing ring as well as advanced materials enable reliability and extended life time.

Connection to the machine by means of:

  • BSP (ISO 228) right-hand or left-hand male thread
  • NPT (ANSI) right-hand or left-hand male thread
  • K flange, with 3 different options

For different sizes of radial and axial housing connections (inlet & outlet) as well as sizes of stationary and rotating syphon pipe, please contact Vrska Press company or your local representative.

For ordering instructions see coding system page.

Features

Monoflow & duoflow design
Spherical carbon graphite sealing ring
Self-supported rotary joint
Long service life
Easy and quick repair
Two robust, widely spaced carbon bearings
Maintenance free

Materials

Seal faces combination: Carbon/Special SS
Secondary seal: Graphoil
Rotor: Special stainless steel
Housing: described in “series description”

Operating data

ND
ND
ND
ND 15
ND 20
ND 25
ND 32
ND 40
ND 50
ND 65
ND 75
ND 83
ND 100
ND 125
Size
Size
Size
1/2"
3/4"
1"
1 1⁄4"
1 1⁄2"
2"
2 ¹⁄2"
3"
3 ¹⁄2"
4"
4 ¹⁄2"
Medium
Steam
Max. temperature
200°C
200°C
200°C
200°C
200°C
200°C
200°C
200°C
200°C
200°C
200°C
Medium
Steam
Max. pressure
15 bar
15 bar
15 bar
15 bar
15 bar
15 bar
15 bar
15 bar
15 bar
15 bar
15 bar
Medium
Steam
Max. speed
550 rpm
500 rpm
450 rpm
400 rpm
370 rpm
300 rpm
250 rpm
200 rpm
200 rpm
180 rpm
150 rpm
Medium
Thermal oil
Max. temperature
280°C
280°C
280°C
280°C
280°C
280°C
280°C
280°C
280°C
280°C
280°C
Medium
Thermal oil
Max. pressure
10 bar
10 bar
10 bar
10 bar
10 bar
10 bar
10 bar
10 bar
10 bar
10 bar
10 bar
Medium
Thermal oil
Max. speed
550 rpm
500 rpm
450 rpm
400 rpm
370 rpm
350 rpm
300 rpm
250 rpm
250 rpm
200 rpm
180 rpm

Avoid combination of maximum values. Medium plays important role to determine limiting factors, therefore we kindly ask our customers to contact our company before ordering. Higher values on request.

Full catalogue OF UNKF rotary joints

If you have any questions or concerns about the product, please feel free to call or send us a message.