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Throttle valves
Throttle valve
Sandwich construction ®
• Q max = 15 l/min NG3-Mini
• Q N max = 8 l/min
• p = 315 bar
max
DESCRIPTION FUNCTION APPLICATION
Sandwich type throttle valves based on an A fine thread on the adjustable throttle reveals Sandwich type throttle valves can be used
M18x1,5 screw type throttle cartridge in an annular gap or triangular notch. The volume anywhere where volume flows have to be
accord-ance with ISO 7789 (see data sheet flow is zero when the throttle is screwed in (the infinitely controlled in both directions without
no. 2.4-510). metal sealing edge seals completely). The taking pressure fluctuations into account.
valve flow is bidirectional. These sandwich valves are ideal for machine
tools and also all types of handling operation.
Mini-3 throttle valves are used wherever light,
extremely compact hydraulic control units are
needed.
TYPE CODE
DN S A03 - - #
Throttle valve
Type of adjustment Screw S
Knob D
Sandwich construction
Mounting interface acc. to Wandfluh standard, NG3-Mini
Type list / function
in A A in B B
in A and B AB
in P P
Nominal volume flow rate Q 0,32 l/min 0,32
N
3,2 l/min 3,2
8 l/min 8
Design-Index (Subject to change)
GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
Denomination Throttle valve Fluid Mineral oil, other fluid on request
Nominal size NG3-Mini according to Wandfluh standard Contamination efficiency ISO 4406:1999,
Construction Sandwich construction class 20/18/14…21/19/15
Mounting 3 holes for socket head cap screw M4 (Required filtration grade ß 10...25 ≥ 75)
or studs M4 refer to data sheet 1.0-50/2
Connections Threaded connection plates, Multi-flange Viscosity range 12 mm /s…320 mm /s
2
2
plates, Longitudinal stacking system Fluid temperature -20…+70 °C
Ambient temperature -20…+50 °C Peak pressure p max = 315 bar
Mounting position any Nominal volume flow rates Q = 0,32 l/min, Q = 3,2 l/min
N
N
Fastening torque M = 2,8 Nm (Qual. 8.8) for fastening screws Q = 8 l/min
N
D
M = 30 Nm for screw-in cartridge Q at 10 bar valve pressure loss
D
N
Weight Depending on the type 0,22…0,40 kg Max. volume flow Q max = 15 l/min
Leakage volume flow Almost leak free with closed restrictor
For additional informations refer to data sheet no 2.4-510.
SCREW-IN CARTRIDGES INSTALLED (For Q = 8 l/min please take the screw-in cartridge DN.PM18-25)
The following screw-in cartridges are used in either the flange body or N
the sandwich body:
Type Designation Data sheet no.
DN.PM18 Throttle valve 2.4-510
TYPE LIST / FUNCTION
A PT B A PT B A PT B A PT B A PT B
DN.SA03-A DN.SA03-B DN.SA03-AB DN.SA03-P
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 2.4-700E 1/2
CH-3714 Frutigen 20 Edition 21 31
10 20
13 10
P
∅ 4,2 21 11 A B
∗ T To ∗ 15 30
30 B=3,7 96 A=3,7
DN.SA03-A
DN.SA03-B
DN.SA03-AB
P
A B
∗ T To
48 19
DN.SA03-P
