26
Section IX - Internal Body Passages & Plug Locations
Two stage directional valves can be converted to different
operational modes, i.e. internal/external, pilot pressure or
drain, fast response, etc. To accomplish this, internal plugs
must be removed or added within the main stage body
passages.
Table 9 is a list of basic models with the incorporated
operational model changes. Each model is referenced to a
particular figure. The figure illustrates internal passages and
plug locations.
Operational Mode Change
(Reference Model Code, Table 2)
* -
Standard
X -
Fast response option
E -
External pilot pressure
K/Q/R/S- Integral check valve
T -
Internal pilot drain
CAUTION
DO NOT change internal plugs within
mainstage unless power is off and system
pressure is relieved.
Basic Model Description
Ref.
DG3V-8-(R)-10
DG3V-8-(R)-E-10
DG3V-8-(R)-X-10
DG3V-8-(R)-E-K/Q/R/S-10
DG3V-8-(R)-X-E-K/Q/R/S-10
DG3V-8-(R)-X-K/Q/R/S-10
DG3V-8-(R)-X-E-K/Q/R/S-10 (OmitT)
DG3V-8-(R)-X-E-T-K/Q/R/S-10
Fig.
21
DG5V-8-(R)-10
DG5V-8-(R)-E-10
DG5V-8-(R)-X-10
DG5V-8-(R)-E-K/Q/R/S-10
DG5V-8-(R)-X-E-K/Q/R/S-10
DG5V-8-(R)-X-K/Q/R/S-10
DG5V-8-(R)-X-E-K/Q/R/S-10 (Omit T)
DG5V-8-(R)-X-E-T-K/Q/R/S-10
Fig.
21
Table 9. Basic Models
Plug / Orifice Installation Table
DG3V-8-(R)
‘‘A’’
Plug/
Orifice
‘‘B’’ Plug
‘‘C’’ Plug
10
In
In
X-10
Out
In
In
X-K/Q/R/S-10
In
In
In
X-K/Q/R/S10
Out
In
Plug ‘‘B’’
Plug ‘‘A’’ or orifice
Plug ‘‘C’’
Figure 21
Plug / Orifice Installation Table
DG5V-8-(R)
‘‘A’’ Plug /
Orifice
‘‘B’’ Plug
‘‘C’’ Plug
10
Out
In
E-10
In
X-10
Out
Out
E-K/Q/R/S-10
In
In
In
X-E-K/Q/R/S-10
In
X-K/Q/R/S10
Out
X-E-K/Q/R/S-10
(T omitted)
Out
In
X-E-T-K/Q/R/S-10
In
Out
