Characteristics and performance
The Hallite 52 is a two piece piston seal for heavy duty applications which, when installed in pairs, provides an excellent double-acting piston design. It is suitable for difficult operating conditions such as pressure surging, vibration or some misalignment.
Both parts are manufactured from rubberised fabric which gives strength and durability and retains lubrication to keep friction low and reduce wear.
By extending the centre of the seal past the sealing edges, they are protected from damage should inter-seal pressure force the seal against the housing wall. Grooves across the protruding face allow pressure to reach both sealing edges. The support ring is manufactured from a hard rubberised fabric to protect the seal from extrusion damage. The ‘U’ shape of the ring provides a secondary seal as pressure deforms the lips to increase the sealing area.
Product detailsAsk an expert
Max pressure *
* Max pressure stated is dependant on the material variant selected. Please consult the datasheet for further information.
- Not suitable
* For fluid types marked as possible, please call our team of experts on +86 (0)21 3351 7272 to talk through your requirements and determine if this seal is the most suitable for your needs.
|Dynamic application||Static application|
|Fluids based on mineral oil|
|HFB (60/40 invert emulsion)||Recommended||Recommended|
|HFC (water glycol)||Recommended||Recommended|
|Other fluid types|
|Air/Nitrogen||Not suitable||Not suitable|
|HFD (Phosphate ester ARYL Type)||Not suitable||Not suitable|
|Synthetic esters (HEES, HFDU)||Possible||Possible|