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High Pressure Coupling | HPA Series

Supplier: Alford Hydraulics

Holmbury High Pressure Ball Seal Screwed Couplings can be connected and disconnected even with a low residual hydraulic pressure in the line.

Price Guide: POA

The screw connection mechanism eliminates Brinelling (indentation of the locking balls into the retaining
groove) and thus makes the couplings suitable for high pressures and pressure pulse applications. Two sizes
are offered, 1/4" and 3/8" NPT.


  • Compatible with all high pressure pump and cylinder manufacturers (Enerpac, SPX, Larzep and Hi-force).
  • Connection and disconnection can be performed even with low residual hydraulic pressure in the line.
  • Screw thread retaining mechanism eliminates Brinelling.


  • General industrial equipment