Head seal Prädifa series HS, Ultrathan® | Product Series

Filter by

    No filters selected

Outside Diameter (mm)

Inside Diameter (mm)

Element Height (mm)

Groove Width

Minimum Working Temperature (C)

Maximum Working Temperature (C)

Seal Material

Get your Parker account Today!

Create one account to manage everything you do with Parker, from your shopping preferences to your application access.


LOADING IMAGES
Head seal Prädifa series HS, Ultrathan® Head seal Prädifa series HS, Ultrathan®

Head seal Prädifa series HS, Ultrathan®

Where to Buy

The Ultrathan® seal HS is suitable for radial, static applications at high pressures such as hydraulic valves and cylinders, machine tools, injection-moulding machines.

Technical Specifications

  • Media: Hydraulic
  • Polymer Material Options: Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)
  • Maximum Operating Pressure: 600 bar
  • Minimum Operating Temperature: -45 to -30 °C
  • Maximum Surface Speed: 0 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Pressure Rating: Extremely High Pressure (> 500 bar)
  • Thermal Application Type: High Temperature (< 205°C), Standard Moderate Temperature (-35 to 100°C), Low Temperature (< -35 C)
Safety Warning

Full Product Description

The HS static radial seal made of polyurethane compounds was developed as an alternative to conventionally used O-ring/back-up ring combinations for static sealing applications at high pressures. The robust, symmetrical seal geometry and the utilization of particularly extrusion-resistant Parker polyurethane compounds not only facilitates installation but increases sealing performance in conditions of pulsating pressures as well, resulting in clearly longer service life.
The benefits of the HS seal result from the serial configuration of the two sealing areas, which doubles the protection against leakage compared to a single seal. In addition, with two sealing areas or sealing edge pairs backing up the seal, exceptional protection against twisting of the seal is achieved, both during installation and in operation at pulsating pressures, for instance in combination with breathing components and coaxiality defects of the groove.
The use of particularly extrusion-resistant materials, especially the P6000 polyurethane compound with 94 Shore A hardness, eliminates the need for back-up rings.

• Robust seal profile for harshest operating conditions.
• Insensitive to pressure peaks.
• High extrusion resistance.
• Excellent media resistance in case of suitable compound selection.
• Suitable compounds available for special requirements of the chemical process industry.
• Suitable compounds available for special requirements of the food processing industry.
• Installation in closed and undercut housings.
• Additional sizes of machined products available on short notice.

Range of application:
The HS Ultrathan® seal is suitable for radial, static applications at high pressures such as hydraulic valves and cylinders, machine tools, injection-moulding machines.

Related Documents

Literature and Reference Materials
Hydraulic Seals--PTD3350
Storage and Cleaning of Elastomer Seals--PTD3032
Ultrathan®--Static radial seal HS--PTD3350
Product Demos & Tutorials
How to Properly Store and Clean Elastomer Seals
Parker Final Exam in Physics / Sealing Systems Put to the Test
Communities, Blogs & Industry Links
Industry Hydraulics
×
View Catalog
Share / Email
Print
Products Outside Diameter (mm) Inside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
HSA094P6000 100 94.5 4.7 5.7 -35 100 P6000
HSB110P6000 110 101.4 8 9 -35 100 P6000
HS2731P5009 27.6 31.75 4.8 5.8 -45 95 P5009
HS2732P5009 27.8 32 3.84 4.7 -45 95 P5009
HS3252P5009 32.2 36.52 3.84 4.7 -45 95 P5009
HS3539P5009 35.3 39.67 3.84 4.7 -45 95 P5009
HS3632P6000 36.5 32.4 2.8 3.2 -35 100 P6000
HS4034P6000 40 34.4 4 5 -35 100 P6000
HS4236P6000 42 36.4 4 5 -35 100 P6000
HS4540P6000 45 40 4.4 5.4 -35 100 P6000
HS4840P6000 48 42.3 4.3 5.3 -35 100 P6000
HS4843P6000 48 43 3.2 4 -35 100 P6000
HS5044P6000 50 44.4 4.6 5.6 -35 100 P6000
HS5045P5205 50 45.8 3.6 4.4 -30 100 P5205
HS5550P6000 55 50 4.3 5.3 -35 100 P6000
HS5752P6000 57 52.2 3.3 4.1 -35 100 P6000
HS5763P6000 57.4 63 4.8 5.8 -35 100 P6000
HS6054P6000 60 54.3 4.6 5.6 -35 100 P6000
HS6559P6000 65 59.4 4 5 -35 100 P6000
HS6862P6000 68 62.7 4 5 -35 100 P6000
HS7065P6000 70 65 4 5 -35 100 P6000
HS7266P6000 72 66.4 4 5 -35 100 P6000
HS7569P6000 75 69.4 4.6 5.6 -35 100 P6000
HS7670P6000 76.2 70.2 4.8 5.8 -35 100 P6000
HS8073P6000 80 73.6 6 7 -35 100 P6000
HS8074P6000 80 74.4 4.8 5.8 -35 100 P6000
HS8478P6000 84.7 78.58 4 5 -35 100 P6000
HS8579P6000 85 79.4 4.5 5.5 -35 100 P6000
HS9083P6000 90 83 5.5 6.5 -35 100 P6000
HS5247P6000 52 47.9 3.6 4.4 -35 100 P6000
Close [ x ]
Full Screen
687466
687424