Page 1135 - Softbound_Edition_19_en

Throttle valves Throttle valves
Throttle valve

2
CHARACTERISTICS oil viscosity υ = 30 mm /s Throttle valve
∆p = f (Q) Pressure drop/flow characteristics Q = f (n) Volume flow adjustment characteristics Sandwich construction ®
p [bar] Q = 0,32 l/min Q = 0,32 l/min • Q max = 20 l/min NG4-Mini
N
N
10 K0064 Q [l/min] • Q = 15 l/min
0.5 K0069 N max
8 • p = 315 bar
0.4 ∆ p = 20 bar max
6
0.3 ∆ p = 10 bar
4 DESCRIPTION FUNCTION APPLICATION
0.2
2 ∆ p = 5 bar Throttle valve sandwich design NG4-Mini with Using the precision thread adjusting spind- Sandwich type throttle valves can be used
0.1 mounting interface acc. to Wandfluh standard. le, the restriction of the volume flow can be anywhere where volume flows have to be
0 The throttle valve is available in two different continuously adjusted. With the spindle fully infinitely controlled in both directions without
0 0.08 0.16 0.24 0.32 Q [l/min] 0 variants, namely the standard and the preci- screwed home, the volume flow is zero, and taking pressure fluctuations into account.
0
∆p = f (Q) Pressure drop/flow characteristics Q = f (n) 1 2 3 4 5 n [-] sion throttle (FD). The rotary control is made a metallic edge makes a leak-tight closure. These sandwich valves are ideal for machine
Volume flow adjustment characteristics
p [bar] Q = 3,2 l/min Q [l/min] Q = 3,2 l/min from aluminium, all other parts, have been The throttle effect is produced by an annular tools and also all types of handling operation.
N
N
10 K0065 5 K0068 phosphated. gap which can be varied in size, or by means Mini-4 throttle valves are used wherever light,
of a triangular edge. Because of the nature
extremely compact hydraulic control units are
80 4 ∆p = 20 bar of the design, there is only a small amount needed.
60 3 ∆p = 10 bar of leakage.
40 2 ∆p = 5 bar TYPE CODE

20 1 Mounting interface acc. to Wandfluh standard B DR 4 #
0 0
0 0.8 0.16 2.4 3.2 Q [l/min] 0 1 2 3 4 5 n [-] Throttle valve
∆p = f (Q) Pressure drop/flow characteristics Q = f (n) Volume flow adjustment characteristics Type list / function
p [bar] Q = 8 l/min Q [l/min] Q = 8 l/min in A A in B B
N
N
10 K0066 AB 15 K0067 in A and B AB
∆ p = 20 bar in P P in T T
8 12 in P and T PT
6 P 9 ∆ p = 10 bar Nominal size 4-Mini
A PT B A PT B A PT B A PT B A PT B
4 T 6 ∆ p = 5 bar Standard
2 3 Precision throttle - FD
0 0 Design-Index (Subject to change)
0 2 4 6 8 Q [l/min] 0 1 2 3 4 5 n [-]
DIMENSIONS GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
20 Description Throttle valve Fluid Mineral oil, other fluid on request
10 20 Nominal size NG4-Mini acc. to Wandfluh standard Contamination efficiency ISO 4406:1999,
13 10 Construction Sandwich class 20/18/14…21/19/15
Mounting 3 mounting holes for socket head cap (Required filtration grade ß 10...25 ≥75)
screws refer to data sheet 1.0-50/2
P 2 2
∅ 4,2 21 11 A B Connections M5 or studs M5 Viscosity range 12 mm /s…320 mm /s
-20...+70 °C
Threaded connection plates, Multi-flange
Fluid temperature
∗ T To ∗ 15 30 subplates, Longitudinal stacking system Peak pressure p max = 315 bar
Ambient temperature -20…+50 °C Nominal volume flow rate Q = 15 l/min
N
Mounting position any Q at 10 bar valve pressure loss
N
30 B=3,7 96 A=3,7 Fastening torque M = 5,5 Nm (Quality. 8.8) Max. Volume flow Q max = 20 l/min
D
Weight Depending on the type 0,8…0,9 kg Leakage volume flow Almost leak free with closed restrictor
DN.SA03-A
DN.SA03-B
DN.SA03-AB
P TYPE LIST / FUNCTION
A B BDRA4 BDRB4 BDRAB4
T To
∗
48 19
DN.SA03-P A PT B A PT B A PT B

PARTS LIST BDRP4 BDRT4 BDRPT4
Position Article Description ∗ The exterior dimensions of the screw-in cartridge can be obtained
from the corresponding data sheet no. 2.4-510
10 160.2045 O-ring ID 4,5 x 1,50 (NBR)
20 238.4401 Plug VSTI M18 x 1,5-OR A PT B A PT B A PT B
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 2.4-700E 2/2 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.4-730E 1/2
CH-3714 Frutigen Edition 21 31 CH-3714 Frutigen Edition 03 40
Page 1135

28
10 20 14

P
∅ 5,5 40 ∅ 28,5 27 T A B 14

To

30 44 27
A=71
B=71
37 AB=88

P
A B 6
6 T To

30 52 27
T=79
P=71
PT=96