Page 844 - Softbound_Edition_19_en

Accumulator loading valve
Accumulator unloading valve Accumulator loading valve

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS DIMENSIONS
Designation Accumulator loading valve Working pressure p = 400 bar Key adjustment «S» Control knob adjustment «D»
max
Construction Pilot operated Nominal pressure p = 100 bar, 160 bar, 350 bar 17 s4 26
N
Mounting Screw-in cartridge construction range
Nominal size M22 x 1,5 according to ISO 7789 Minimum pressure p = 50 bar for p = 160 / 350 bar 30 20
N
min
Actuation Manually p = 25 bar for p = 100 bar 40
N
min
Ambient temperature -25…+70 °C Volume flow range Q = 1…30 l/min s13
Weight 0,22 kg key adjustment Leakage oil Maximum 4 drops / min
0,24 kg control knob in accumulator unloading operation P - T 61 69
0,28 kg cover Fluid Mineral oil, other fluid on request s27
Viscosity range 12 mm /s…320 mm /s 125
2
2
Temperature range -25…+70 °C (NBR) Ø30
ACTUATION fluid -20…+70 °C (FKM) 117
Actuation S = lockable key adjustment Contamination Class 18 / 16 / 13 M22x1.5 3(X) 50
D = lockable knob adjustment efficiency 65
Actuation angle p = 100 / 160 bar Filtration Required filtration grade ß 6…10 ≥ 75,
N 56 75
a = 1368° (3,8 rotations) see data sheet 1.0-50
b
p = 350 bar Diff. unloading / 15 ± 3 % for p = 160 / 350 bar 2(T)
N N
a = 2700° (7,5 rotations) loading 25 ± 3 % for p = 100 bar 60
b N HYDRAULIC CONNECTION
Actuation stroke p = 100 / 160 bar 1(P) 70 Cavity drawing according to ISO 7789–22–06–0–98
N
S = 3,8 mm
b
p = 350 bar Cover «A» M22x1.5
N
S = 7,5 mm
b 23
PERFORMANCE SPECIFICATIONS
Oil viscosity u = 30 mm /s 25 (3)
2
∆p = f (Q) Pressure drop volume flow characteristic p = f (n) Performance limits (2)
Accumulator operation - Measured at Q = 2 l/min
unloading circuit P (1) → T (2) p [bar] (1)
p [bar] 400 K0391 64 (1)
8 K0393
300 P N = 350 bar
6 120 Note! For detailed cavity drawing and cavity tools see data
200 sheet 2.13-1006
4 P N = 160 bar
100
2 P N = 100 bar
0
0 0 1 2 3 4 5 6 7 8 n [-] PARTS LIST ACCESSORIES
0 5 10 15 20 25 30 Q [l/min]
Position Article Description Types of adjustment for screw-in Data sheet 2.0-50
20 114.2224 Control knob cartridges
SEALING MATERIAL SURFACE TREATMENT 25 032.0611 Cover rd 23 / 3 x 35 Technical explanations Data sheet 1.0-100
NBR or FKM (Viton) as standard, choice in the type code ◆ The cartridge body is zinc-nickel coated 30 193.1061 Retainer rd 6 DIN 6799 Filtration Data sheet 1.0-50
◆ The control knob is made of plastic
40 153.1402 Hexagon nut 0,5d M8 x 1
45 212.1488 Washer (only for p = 100, 160 bar)
N
50 160.2188 O-ring ID 18,77 x 1,78 (NBR)
STANDARDS INSTALLATION NOTES 160.6188 O-ring ID 18,77 x 1,78 (FKM)
Cartridge cavity ISO 7789 Mounting type Screw-in cartridge M22 x 1,5 60 160.2140 O-ring ID 14,00 x 1,78 (NBR)
Contamination ISO 4406 Mounting position Any, preferably horizontal 160.6141 O-ring ID 14,00 x 1,78 (FKM)
efficiency Tightening torque M = 60 Nm Screw-in cartridge 65 160.2156 O-ring ID 15,60 x 1,78 (NBR)
D
160.6156 O-ring ID 15,60 x 1,78 (FKM)
70 049.3176 Backup ring rd 14,1 x 17 x 1,4
75 049.3196 Backup ring rd 16,1 x 19 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 24 2.1-548 E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 19 24 2.1-548 E
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