HYDAC International FPU Notice D'utilisation page 17

1. Document information
9007199752982155-4
This document contains important information
on the commissioning and handling of
HYDAC charging and testing units of the
following series: FPU-1, FPU-2
Other relevant documents with further safety
and product information:
Number Title
3.000 HYDAC Accumulator technology
3.201.BA Instruction Manual for Bladder
Accumulators
3.301.BA Operating instructions
Piston accumulators
3.100.BA Operating instructions
Diaphragm accumulators
3.304.BA Operating instructions
Metal bellows accumulators
3.501 Charging and testing unit FPU
2. Product information
18014399015394443-4
The charging and testing unit ("FPU") is a
screw-in unit that is used to charge and test
the nitrogen pre-charge pressure in bladder
accumulators (SB), piston accumulators (SK),
diaphragm accumulators (SBO) or metal
bellows accumulators (SM).
The following parts are built on as a standard:
● Valve bodies
● Spindle
● Check valve (FPU1 only)
● Release valve
● Pressure gauge
● Charging hose
● Adapter A3 (FPU‑1) / A3H (FPU‑2)
only for bladder accumulators
Fold-out pages
Fig. Content
[I-1] Correction of the pre-charge
pressure (nitrogen) in accordance
with the accumulator temperature –
other values can be determined by
using our tool
[II-1] FPU‑1 (with sectional view)
[II-2] FPU‑2 (with sectional view)
[III-1] A3 adapter for bladder accumu-
lators
[III-2] A3H adapter for bladder accumu-
lators
INT 3.501.BA15/03.24
Fig. Content
[III-3] Gas charging connection for
bladder accumulators
[III-4] Gas charging connection for piston,
diaphragm and metal bellows accu-
mulators
[IV-1] G adapters (part no.)
FPU‑1 for nitrogen bottles up to
200 bar
[IV-2] Charging hoses
FPU‑1: F, FW
FPU‑2: FH
Set-up diagram FPU-1
6 7
4
Description
FPU-1
Charging hose
Adapter A3
Nitrogen bottle
Hydraulic accumulator
Adapter G
Pressure reducing valve
Set-up diagram FPU-2
Description
FPU‑2
Charging hose
Adapter A3H
Nitrogen supply
(pressure boost system)
17 / 88
2 1
3
5
No.
1
2
3
4
5
6
7
2 1
3
4
5
No.
1
2
3
4
EN