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Throttle valve
Restrictor valve Throttle valve

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS DIMENSIONS
Designation Throttle non-return valve Working pressure p = 350 bar Key adjustment „S” Control knob adjustment „D”
max
Mounting Screw-in cartridge construction Maximum volume flow Q = 25 l/min 17 s3 25.5
max
Nominal size M18 x 1,5 according to ISO 7789 Volume flow direction 1 → 2 adjustable flow
Ambient temperature -25…+90 °C 2 → 1 free flow 30
Weight 0,09 kg key adjustment Nominal volume flow Q = 3,2; 25 l/min 40
N
0,10 kg control knob adjustment at 10 bar valve pressure drop s10
0,16 kg cover Leakage oil With closed throttle practically 20
MTTFd 150 years leakage-free
Fluid Mineral oil, other fluid on request 39.5
Viscosity range 12 mm /s…320 mm /s s19 47
2
2
Temperature range NBR -25…+90 °C
fluid FKM (D1) -20…+90 °C 68.5
NBR 872 (Z604) -40…+90 °C Ø23 76
SEALING MATERIAL Contamination Classe 20 / 18 / 14…21 / 19 / 15 50
NBR or FKM (Viton) as standard, choice in the type code efficiency M18x1.5
Filtration Required filtration grade ß 10…25 ≥ 75,
see data sheet 1.0-50 / 2 29
2 (T)
PERFORMANCE SPECIFICATIONS 60
Oil viscosity u = 30 mm /s 70
2
∆p = f (Q) Pressure drop volume flow characteristic Q = f (I) Volume flow adjustment characteristics DN 1 (P)
Q = 3,2 l/min Q = 3,2 l/min Cover „A” HYDRAULIC CONNECTION
N
N
1 → 2 via completely opened throttle Q [l/min] 23 Cavity drawing according to ISO 7789–18–01–0–98
2 → 1 via non-return valve with closed throttle 5 K0004 ∆ p = 20 bar
M18x1.5
p [bar] 4
25 K0003 3 ∆ p = 10 bar
20 2 ∆ p = 5 bar 25
15 1 (2)
10
2 1 1 2 0
5 0 1 2 3 4 5 n [-] 44.6 (1)
0
0 1 2 3 4 5 Q [l/min]
(1)

73.6 Note! For detailed cavity drawing and cavity tools see data
sheet 2.13-1002
∆p = f (Q) Pressure drop volume flow characteristic Q = f (I) Volume flow adjustment characteristics DN
Q = 25 l/min Q = 25 l/min
N
N
1 → 2 via completely opened throttle Q [l/min]
2 → 1 via non-return valve with closed throttle 25 K0002 ∆ p = 20 bar ∆ p = 10 bar PARTS LIST SURFACE TREATMENT
p [bar] 20 ∆ p = 5 bar Position Article Description ◆ The cartridge body made of steel is zinc-nickel coated
25 K0001 15 20 114.2299 Control knob ◆ The control knob is made of plastic
20 10 25 032.0611 Cover rd 23 / 3 x 35
15 5 30 193.1040 Retainer rd 4 DIN 6799 ACCESSORIES
10 2 1 1 2 0 40 153.1302 Hexagon nut 0,5d M6 x 3,2 Types of adjustment for screw-in Data sheet 2.0-50
5 0 1 2 3 4 5 n [-] cartridges
45 234.1060 Washer DIN 125A M6
0 Flange body / sandwich plate NG3-Mini Data sheet 2.4-800
0 5 10 15 20 25 Q [l/min] 50 160.2156 O-ring ID 15,60 x 1,78 (NBR) Threaded body Data sheet 2.9-205
160.6156 O-ring ID 15,60 x 1,78 (FKM) Technical explanations Data sheet 1.0-100
60 160.2111 O-ring ID 11,11 x 1,78 (NBR)
160.6111 O-ring ID 11,11 x 1,78 (FKM) Filtration Data sheet 1.0-50
70 049.3156 Backup ring rd 12,1 x 15 x 1,4
Wandfluh AG Postfach CH-3714 Frutigen
Tel. +41 33 672 72 72 Fax +41 33 672 72 12 sales@wandfluh.com

www.wandfluh.com Illustrations are not binding Data subject to change 2/3 Edition: 19 11 2.4-610 E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 19 11 2.4-610 E
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