Characteristics and performance

Hallite’s 656 is an asymmetric single acting piston seal. Similar in design to the Hallite 621 rod seal, Hallite’s 656 offers excellent sealing in light, medium and heavy duty single acting applications.

Manufactured in Hallite’s high performance polyurethane Hythane® 181, Hallite 656 is an extremely flexible seal making installation easy.

The twin lip design offers lower friction, improved sealing and primary lip protection.

Product details

 

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Max pressure

400 Bar

Temp range

-45°C
110°C

Max speed

1m/sec
Key:
  • Recomended
  • Possible
  • Not suitable

* For fluid types marked as possible, please call our team of experts on +91 80 2372 6000 to talk through your requirements and determine if this seal is the most suitable for your needs.

 Dynamic applicationStatic application
Fluids based on mineral oil  
AnyRecommendedRecommended
Waterbased fluids  
HFA (5/95)PossiblePossible
HFB (60/40 invert emulsion)RecommendedRecommended
HFC (water glycol)PossiblePossible
WaterPossiblePossible
Other fluid types  
Air/NitrogenPossiblePossible
HFD (Phosphate ester ARYL Type)Not suitableNot suitable
Synthetic esters (HEES, HFDU)RecommendedPossible