8-69
Proportional Throttle Valve
Series TDA
Catalogue HY11-3500/UK
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
8
TDA_UK.INDD RH_23.01.08
W
TDA
Nominal
size
Proportional
throttle valve
Slip-in valve
DIN ISO
7368
Nominal
flow
Poppet
shape
Plug socket
without
plug
Flow direc-
tion
Solenoid
voltage
Design
Ordering Code
Seal
Piloting
Design
series
(not required
for ordering)
Short symbolFunction symbol
The 2/2 way proportional throttle valves series TDA are
used to control large oil flows.
Features
• Cavity and mounting pattern according to ISO 7368
• Fail-safe function at power failure
• Leak-free from port B to A
• Pressure differential up to 350 bar possible
• 8 sizes NG16 up to NG100
Function
The TDA valve has a 3-stage design consisting of the
first solenoid operated pilot stage with a spool in sleeve
design, the second pilot stage with the control spring and
the sequence spool and as main stage the poppet in the
sleeve. The proportional solenoid operates the pilot spool
against the feedback of the control spring and controls the
position of the sequence spool. The main poppet follows
the position of the sequence spool and provides an open
area for ow from B to A (optional A to B) in proportion to
the solenoid current. The poppet is positioned indepen-
dent of the differential pressure, which can become as
high as the maximum working pressure.
In combination with the digital power amplifier PC-
D00A-400 the valve parameters can be saved, changed
and duplicated.
Characteristics / Ordering Code
Code Nominal size
016 NG16
025 NG25
032 NG32
040 NG40
050 NG50
063 NG63
080 NG80
100 NG100
Code Solenoid voltage
X 16 VDC
L 6 VDC
Code Seal
N NBR
V FPM
Code Flow direction
A A to B
B B to A
90E 2 W
8-70
TDA_UK.INDD RH_23.01.08
Proportional Throttle Valve
Series TDA
Catalogue HY11-3500/UK
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
8
Technical Data
General
Design Proportional throttle valve, slip-in cartridge according to ISO 7368
Nominal size
16 25 32 40 50 63 80 100
Mounting position unrestricted
Ambient temperature [°C] -20...+80
Weight [kg] 3.1 4.3 5.8 9.2 15 33 63 87
Extracting tool see accessories
Hydraulics
Max. operating pressure [bar] Ports A, B and X up to 350, port Y: max. 10
Fluid Hydraulic oil as per DIN 51524...525
Fluid temperature [°C] 0 ... +60
Viscosity recommended
permitted
[cSt]/[mm²/s]
[cSt]/[mm²/s]
30 ... 80
20 ... 380
Filtration ISO 4406: 1999; 18/16/13
Nominal flow at ∆p=10bar [l/min] 220 500 950 1400 2300 4000 6000 9500
Flow direction see ordering code
Pilot pressure, min. [bar] > 25% of system pressure
Min. operating pressure [bar] Port A → B ca. 10; Port B → A ca. 15
Pilot oil supply
drain
Depending on ow direction A or B using X or external X
External using Y max. 10bar
Pilot oil at p = 100bar [l/min] Port X → Y <1.5
Opening point At 30% of nominal current
Manufacturing tolerance [%] ±5 of Qnom
Static/dynamic
Hysteresis [%] < 3
Repeatabiltity [%] < 1
Response time at px=50bar [ms] 20 25 30 35 45 55 65 80
Electrical (proportional solenoid)
Duty ratio 100% ED
Protection class IP65 according to EN 60529 (plugged and mounted)
Solenoid Code
L X
at size 16-50 63-100 16-50 63-100
Solenoid voltage
Nominal current (100% ED)
[V]
[A]
6
2.6
16
1.05
Nominal resistance [Ohm] 2.2 2.5 11.3 14
Power amplifier, recommended PCD 00A-400
Solenoid connection Connector as per EN 175301-803
The pilot pressure in X-line must be at least 25% (NG16-40) or 45% (NG50-100) of the pressure in the draining-off line of the cartridge to make
sure that the main poppet closes safely without malfunction.
8-71
Proportional Throttle Valve
Series TDA
Catalogue HY11-3500/UK
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
8
TDA_UK.INDD RH_23.01.08
Characteristic Curves
Solenoid current / flow curves
NG16-25 (∆p=10bar)
NG32-50 (∆p=10bar)
NG63-100 (∆p=10bar)
Poppet stroke / time curve
∆p
actual
= (
Q
actual
) • ∆p
nominal
Q
nominal
2
8-72
TDA_UK.INDD RH_23.01.08
Proportional Throttle Valve
Series TDA
Catalogue HY11-3500/UK
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
8
Valves Valve covers
Size 16 25 32 40 50 63 80 100
H 168 173 178 262 198 287 327 342
b1 65 85 102 125 140 180 Ø250 Ø300
d1
H7
32 45 60 75 90 120 145 180
d2
H7
25 34 45 55 68 90 110 135
t2
+0.1
56 72 85 105 122 155 205 245
Dimensions
NG
Bolt kit -
DIN912 12.9
NBR FPM
16 BK-M8x100-4pcs 33 Nm SK-TDA016EN-20 SK-TDA016EV-20
25 BK-M12x50-4pcs 115 Nm SK-TDA025EN-20 SK-TDA025EV-20
32 BK-M16x55-4pcs 281 Nm SK-TDA032EN-20 SK-TDA032EV-20
40 BK-M20x70-4pcs 553 Nm SK-TDA040EN-20 SK-TDA040EV-20
50 BK-M20x75-4pcs 553 Nm SK-TDA050EN-20 SK-TDA050EV-20
63 BK-M30x100-4pcs 1910 Nm SK-TDA063EN-20 SK-TDA063EV-20
80 BK-M24x120-8pcs 935 Nm SK-TDA080EN-20 SK-TDA080EV-20
100 BK-M30x140-8pcs 1910 Nm SK-TDA100EN-20 SK-TDA100EV-20
