Page 908 - Softbound_Edition_19_en

Pressure reducing valve
Pressure reducing valve Pressure reducing valve

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS DIMENSIONS
Designation Pressure reducing valve Working pressure p = 350 bar Key adjustment „S” Control knob adjustment „D”
max
Construction Direct operated Nominal pressure p N red = 160 bar, 315 bar 26.5 20
Mounting Screw-in cartridge construction range s4
Nominal size M22 x 1,5 according to ISO 7789 Volume flow range See characteristic
Actuation Manually Nominal volume flow Q nominal = 15 l/min 40 s17
Ambient temperature -25…+90 °C Leakage oil Seat tight, max. 0,15 ml / min (approx. 3
Weight 0,29 kg key adjustment drops / min) at 30 cSt 91.8
0,29 kg control knob adjustment Fluid Mineral oil, other fluid on request
2
2
MTTFd 150 years Viscosity range 12 mm /s…320 mm /s 91.5 45 129.5
Temperature range -25…+90 °C (NBR) s27
fluid -20…+90 °C (FKM) 129.2
Contamination Class 18 / 16 / 13
efficiency
Filtration Required filtration grade ß 6…10 ≥ 75,
see data sheet 1.0-50 M22x1.5 50
PERFORMANCE SPECIFICATIONS 37.7
Oil viscosity u = 30 mm /s 2(P) 60
2
70
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics
red red
*Limit of the operating range *Limit of the operating range 1(A)

p [bar] p [bar]
160 K4206 350 K4207
140 300 HYDRAULIC CONNECTION PARTS LIST
120 250 Cavity drawing according to ISO 7789–22–01–0–98
100 200 Position Article Description
80
60 150 M22x1.5 20 113.1049 Standard knob incl. counter nut
40 100 40 153.1505 Hexagon nut 0,8d A4 M10 x 1
20 → 50
0 * 0 → 45 160.6218 O-ring ID 21,95 x 1,75 (FKM)
0 5 10 15 20 Q [l/min] 0 5 10 15 * 20 Q [l/min]
(2) 50 160.2188 O-ring ID 18,77 x 1,78 (NBR)
160.6188 O-ring ID 18,77 x 1,78 (FKM)
p = f (n) Pressure adjustment characteristics ∆p = f (Q) Pressure drop volume flow characteristic 60 160.2156 O-ring ID 15,60 x 1,78 (NBR)
red (1) 160.6156 O-ring ID 15,60 x 1,78 (FKM)
p [bar] dp [bar]
K5045 70 049.8196 Backup ring PTSM rd 14,5 x 17,4 x 1,4
350 K4173 20 (1)
300 16
250 12
200 Note! For detailed cavity drawing and cavity tools see data STANDARDS
150 8 sheet 2.13-1008
100 4 Cartridge cavity ISO 7789
50 Contamination ISO 4406
0 0 efficiency
0 1 2 3 4 5 6 7 8 9 n [-] 0 2 4 6 8 10 12 14 16 18 20 Q [l/min]

ACCESSORIES SURFACE TREATMENT

Types of adjustment for screw-in Data sheet 2.0-50 ◆ The housing and the spindle are made of stainless steel
cartridges ◆ The control knob is made of aluminium
Threaded body Data sheet 2.9-205
Technical explanations Data sheet 1.0-100
Filtration Data sheet 1.0-50

SEALING MATERIAL INSTALLATION NOTES
NBR or FKM (Viton) as standard, choice in the type code Mounting type Screw-in cartridge M22 x 1,5
Mounting position Any, preferably horizontal
Tightening torque M = 50 Nm Screw-in cartridge Wandfluh AG Postfach CH-3714 Frutigen
D 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 18 2.2-532 E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 19 18 2.2-532 E
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