Hydac SAF, Operating Instructions Manual

Page: 21 / 70

INT 3.551.BA2/10.20
21
EN
2. Design
NOTICE
For drawings referred to in the text, see fold-
out page.
The SAF consists of a mono-block valve with
the following connections and extension parts:

Pressure relief valve DB12 (pressure relief
valve with CE approval acc. to European
Pressure Equipment Directive)

M1 connection (optionally with pressure
gauge)
ISO 228 - G 1/4 (SAF10, SAF8)
ISO 228 - G 1/2 (all others)

Shut-off valve

Pressure release valve

M2 connection (e.g. for p
0
-guard)
ISO 228 - G 1/4 (all sizes)

Electro-magnetic operated pressure
release valve
(optional for version SAF…E…)

Needle valve
S Accumulator connection
P Pump port
T Tank connection
The hydraulic accumulator can be connected to
the accumulator port (S) of the SAF by means
of the corresponding accumulator adapter.
Optional adapters are available depending on
the design of the SAF (see section 5.6).
NOTICE
Key to fold-out pages:
2 I = SAF circuit diagram
2 II = SAF10 - 32, SAF32-3*, SAF50*
version with manual unloading
2 III = SAF10 - 32, SAF32-3*, SAF50*
version with solenoid-operated
pressure release, open when de-
energised
2 IV = SAF10 - 32, SAF32-3*, SAF50*
version with solenoid-operated
pressure release, closed when
de-energised
2 V = SAF8
3 I = view and designation SAF20
(example, other designs may differ)
* with 3 DB valves