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
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