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 bottlemore
Unit of Measure

Specifications

Type

Charging and Gauging Units

Model Code Description

FPS 100 F2.5 G9 K

Series

FPS

Gas Valve Version

Version 4 (8VI-ISO 4570) for SBO, SK, & SB Bottom Repairable

Gauge / Gas Pressure [Min]

0 bar0 psi

Gauge / Gas Pressure [Max]

100 bar1400 psi

Charging Hose

With Cap Screw G1 (Thread W24, 32x1/14 - DIN477)

Charging Hose Length

8 ft2.5 m

Adapter / Country

G9 / Taiwan

Case

Plastic Carrying Case (Standard)

Valve Type

Bleed

Connection Size

Thread W24, 32 x 1/14 - DIN477

BUn

EA

Division

ACCUMULATORS

Product Group Family

CHARGING AND GAUGING UNITS

Product

ACCUMULATORS ACCESSORIES

Model Code

Connection Type

G9

Includes

N/A The standard FPS & FPK Charging and Gauging kits include a hose with the G1 bushing and a G4 adapter for North America. Other "G" adapters are available separately or included in kit.

Additional Accessories

N/A 6 mm Allen Wrench
14 mm Open End Wrench
O-Ring (PN - 601032)
Seal-Ring (PN - 601228)
Gauge 10 (0 to 145 psi) (PN - 606759)
Gauge 25 (0 to 350 psi) (PN - 606760)
Gauge 100 (0 to 1400 psi) (PN - 606761)
Gauge 250 (0 to 3600 psi) (PN - 606762)
Gauge 400 (0 to 5800 psi) (PN - 606763)
Check Valve (PN - 610004)
Manual Bleed Valve (PN - 236445)
O-Ring - FPS (PN - 626488)
O-Ring - FPK (PN - 601049)
2.5 m Hose (PN - 236514)
4 m Hose (PN - 236515)
10 m Hose (PN - 373405)
ADAPTER G4 (PN - 2068737)
ADAPTER A3 (FPK/SB) (PN - 291533)
O-Ring - ADAPTER A3 (FPK/SB) (PN - 601964)

Additional Information

N/A For use with gas valve version 4. (Except for top repairable bladder accumulators)

Gas Valve Version 4
On a Bottom Repairable Bladder Accumulator as well as Diaphragm Accumulators with E4 gas valve and piston accumulators with VE Gas Valve.

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 charging and gauging units:

  • FPS for use with HYDAC version 4 gas valve

Note

N/A Operating and Installation Instructions are included with each charging kit.

Only qualified persons should perform maintenance on any type of accumulator.