Holmbury / HPA Series

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HPA SERIES HIGH PRESSURE, BALL SEAL, SCREWED COUPLINGS

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

FEATURES

• 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

APPLICATIONS
General industrial equipment

MATERIALS
Zinc plated carbon steel body material with nitrile seals and PTFE backing ring. Other seal materials available on request.

TECHNICAL DETAILS
Maximum working pressure for both sizes of couplings is 700 bar. Working temperature range with nitrile seals is -20°C to +100°C.