The control cover retains the cartridge valve in a manifold block. Inside the cover there are pilot control passages. The cover and pilot valve mounted on the control cover or pilot control components built in the cover and throttle screw are combined as pilot hydraulic resistance network to control the main stage and adjust the open time of the spool. The control passages in control cover are connected with the main passages and the control passages in manifold block. As required, stroke restriction and position monitor can be mounted on the control cover.
TLFA 016 DBU----7X SM /025 M5 V
1 2 3 4 5 6 7 8
1, mode code
TLFA=pressure control cover
2=size code to ISO7368(Din24324)
016=DG16
025=DG25
032=DG32
040=DG40
050=DG50
063=DG63
080=DG80
100=DG100
125=DG125
160=DG160
NOTE: Note:DG125 and DG160 are not ISO/DIN size
3,fuction code
DB*=pressure relief
DBR*=relief with bulit-in
DBW*=solenoid relief
DBU= solenoid relief
DBS=with solenoid ball relief
DBZ=2 stage solenoid relief
DBU2*=2 stage solenoid relief
DBEM=proportional relief
DR=pressure reducing
DREV=proportional pressure reducing
DRW=solenoid pressure reducing
DZ=sequence valve
DZW*=solenoid sequence valve
4,series number
7x=the screw thread of the fixing bolt and solenoid is in metric system
6x=the screw thread of the fixing bolt and solenoid is in inch system
5,the screw thread of drain plug and damper orifice
No code=metric system
SM=SAE for drain plug,and metric system screw thread for damper orifice
SN=SAE for drain plug,and NPT for damper orifice
6, Adjustable pressure range (bar)
025=3---25
050=5---50
100=10---100
200=120---200
315=160----315
350=180---350
7, the size of damper orifice
No code=standard damper size
|
cover size
|
16
|
25
|
32
|
40
|
50
|
63
|
80
|
100
|
125
|
160
|
|
Damper
size
|
M5
|
M6
|
M10
|
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8, seal material
No code= butadiene-acrylonitrile rubber
V= fluororubber