Page 1311 - Softbound_Edition_19_en

Proportional throttle valves Proportional throttle valves
Proportional throttle valve

2
CHARACTERISTICS Oil viscosityt υ = 30mm /s Proportional throttle valve nG4-Mini ®
Q = f (p) Volume flow pressure characteristics ∆p = f (Q) Pressure loss/flow characteristic over non-return valve Flange and sandwich construction
• Direct operated, not pressure compensated
Q [l/min] p [bar] • p = 350 bar
15 K0143 6 K0130 max
12.5 Q = 6.3 l/min 5
N
10 4
7.5 Q = 4 l/min 3
N
5 2
2.5 1
0 0
0 50 100 150 200 250 p [bar] 0 1 2 3 4 5 6 7 8 Q [l/min]
Q = f (I) Volume flow adjustment characteristics Q = f (I) Volume flow adjustment characteristics
DNP.A03 DOP.A03
Q [l/min] Q [l/min] Description FunCtion APPLiCAtion
The force controlled proportional solenoid run-
Directly operated proportional throttle valve
Proportional throttle valves are suitable for
8 K0142 8 K0141 = 6.3 l/min in sandwich construction. Screw-in cartridge ning in the fluid acts directly on the control spool precise feed control systems. An extremely
7 Q N = 6.3 l/min 7 Q N
6 6 M22x1,5 in accordance with ISO 7789. In sand- which opens or closes the triangular shaped sensitive opening and closing response allows
5 Q = 4 l/min 5 Q = 4 l/min wich types for A and B line, a by-pass check throttling notches in the cartridge body. The a smooth control of movements in stationary or
N
N
4 4 valve for reversed free flow is incorporated. The throttle opening, and therefore the flow volume, mobile installations, e.g. machine tools, public
3 3 flange body is painted, the sandwich plates are changes proportionally to the current absorption vehicles. Mini-4 proportional throttle valves are
2 2 phosphatised. of the proportional solenoid. When the solenoid used where hydraulic systems have to be both
1 1 is without current, the control spool is held in ligth and compact.
0 0 the closed position by a spring. To control the
0 10 20 30 40 50 60 70 80 90 100 l [%] 0 10 20 30 40 50 60 70 80 90 100 l [%] valve proportional amplifiers are available from
Wandfluh (see register 1.13).
SYMBOLS / DIMENSIONS
D.PFA03-A/B D.PSA03-A Flange construction D.PFA03-A/B type coDe
D N P A04 - - #
30
15 10 Throttle valve
Normally closed
Proportional
P
D.PSA03-P D.PSA03-B Ø 7.5 Ø 4.2 ∗ T A B To 30 Flange construction F
S
Sandwich construction
15
Mounting interface acc. to Wandfluh standard, NG4-Mini
(8) 22 35 (19) Type list / Function
54 Flange construction Sandwich construction
A → B A/B in P P in A A
in T T in B B
D.PSA03-T D.PSA03-AB 15 Sandwich construction D.PSA03-P, T in A and B AB
Nominal volume flow level, nominal voltage, etc. of the built-in screw-in cartridge
Examples: DNPFA04 - A/B - 6,3 - G24/WD - HBO
P DNPSA04 - P - 10 - G12/ME-A1D1
A B 30
∗ T To Design-Index (Subject to change)
15
Ø 4.2 48 (19) GenerAL speciFicAtions
30 67 Description Proportional throttle valve
Nominal size NG4-Mini acc. to Wandfluh standard
Sandwich construction D.PSA03-A, B, AB Construction Flange and sandwich
Operations Proportional solenoid
PARTS LIST A = 67 Mounting 3 mounting holes for. cyl.screws M5 or
double ended screws M5
Position Article Description P Connection Threaded connection plates
A B Multi-flange subplates
10 160.2045 O-ring ID 4,5x1,50 ∗ T To 30 ∗ Longitudinal stacking system
15
Weight Depending on the type m = 0,95...1,2 kg
SCREW-IN CARTRIDGES INSTALLED 48
The following screw-in cartridges are used in either the flange body or B = 67
the sandwich body:
AB = 96
Type Designation Data sheet no. ∗ The total lenghts depends on the cartridge type, see data
D.PPM18 Proportional throttle valve 2.6-510 sheet 2.6-510

ACCESSORIES
Proportional amplifier Register 1.13
Technical explanation see data sheet 1.0-100

Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no.
Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.6-700E 2/2 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.6-720E 1/2
CH-3714 Frutigen Edition 21 31 CH-3714 Frutigen Edition 14 10
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