Hydac
FPK / FPS Charging and Gauging Units

Key Features

  • Pre-charge hydro-pneumatic accumulators with dry nitrogen
  • Check current gas precharge pressure of accumulator
  • All units incorporate a gauge and check valve in the charging connection
  • All units include a manual bleed valve with a T-handle

Quote Request
Click to Enlarge

To maintain system performance HYDAC recommends that the gas precharge pressure is checked regularly. The inevitable loss of gas precharge pressure due to permeability will change the system effectiveness (performance) and could cause damage to the bladder, diaphragm, or piston accumulator.

HYDAC charging and gauging units allow hydro-pneumatic accumulators to be precharged with dry nitrogen. For these purposes, a charging and gauging unit is connected to a commercially available nitrogen bottle via a flexible charging hose. 

These units also allow maintenance personnel to check the current gas precharge pressure of an accumulator. For critical systems, consider the use of a permanent gauging block (see page 82) which will provide for continuous monitoring.

All HYDAC charging and gauging units incorporate a gauge and check valve in the charging connection, and a manual bleed valve with a T-handle.

HYDAC offers two types of charging and gauging units:

  • FPK for use with HYDAC version 1 gas valve
  • FPS for use with HYDAC version 4 gas valve

Catalogs
FPK FPS Series Catalog FPK FPS Series Catalog
381.3 kB