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Proportional pressure relief valve
Proportional pressure relief valve Proportional pressure relief valve

DIMENSIONS HYDRAULIC CONNECTION Proportional pressure relief cartridge inverse
Cavity drawing according to ISO 7789–22–02–0–98 ◆ direct operated M22 x 1,5
◆ Q = 25 l/min ISO 7789
max
M22x1.5 ◆ p = 400 bar
max
110 s30 ◆ p N max = 350 bar
70.8
93.3 M22x1.5 (2)
15 DESCRIPTION APPLICATION
MD=5.5Nm (2)
(1) Direct operated proportional pressure relief valve with inverse The electrical remote control in conjunction with process controls
(1) function in screw-in cartridge construction for cavity according to allows economical solutions with repeatable processes. By means
22.5 ISO 7789. Good flow capacity due to the differencial area principle, of the inverse function, the maximum system pressure is main-
(1) very sensitively adjustable. When the operating pressure adjusted tained if the electrical valve control falls out (safety function). The
12 17 18 10 18 50 70 60
MD=9Nm by means of the proportional solenoid is reached, the valve opens screw-in cartridge is perfectly suitable for installation in control
60 Note! For detailed cavity drawing and cavity tools see data and connects the protected line with the drain to the tank. With the blocks and is installed in sandwich- (vertical stacked systems) and
88.7 37 sheet 2.13-1003 solenoid deenergised, maximum working pressure is present. If the in flange plates (corresponding data sheets in this register). For
132.6 solenoid current increases, the pressure in port P (1) drops. The machining the cartridge cavity in steel and aluminum blocks, cavity
Dimensions of the solenoid coil see data sheet 1.1-183 and 1.1-184
back pressure in T (2) affects the pressure in P (1). For the control, tools are available (hire or purchase). Please refer to the data
Wandfluh proportional amplifiers are available (see register 1.13). sheets in register 2.13.
PARTS LIST ACCESSORIES
Position Article Description Proportional amplifier Register 1.13
10 263.6... Solenoid coil MK.45 / 18 x 60 Flange body / sandwich plate NG4-Mini Data sheet 2.3-720
12 154.2603 Knurled nut Ex M18 x 1,5 x 18 Flange body / sandwich plate NG6 Data sheet 2.3-740 SYMBOL ACTUATION
15 253.8000 Manual override HB4,5 Flange body / sandwich plate NG10 Data sheet 2.3-760 Actuation Proportional solenoid, wet pin push
17 160.2251 O-ring ID 25,07 x 2,62 (NBR) Threaded body Data sheet 2.9-200 (T) 2 type, pressure tight
18 160.2170 O-ring ID 17,17 x 1,78 (NBR) Technical explanations Data sheet 1.0-100 Execution W.S37 / 19 x 50 (Data sheet 1.1-173)
50 160.2188 O-ring ID 18,77 x 1,78 (NBR) Filtration Data sheet 1.0-50 M.S35 / 19 x 50 (Data sheet 1.1-174)
160.8188 O-ring ID 18,77 x 1,78 (FKM) Connection Connector socket EN 175301 – 803
60 160.2140 O-ring ID 14,00 x 1,78 (NBR) (P) 1 Connector socket AMP Junior-Timer
160.8140 O-ring ID 14,00 x 1,78 (FKM) Connector Deutsch DT04 – 2P
70 049.3177 Back-up ring rd 14,6 x 17,5 x 1,4 MANUAL OVERRIDE TYPE CODE
HB4,5 as standard
110 111.1080 Cable gland M20 x 1,5
B D I PM22 - - / - #
Pressure relief valve
SURFACE TREATMENT SEALING MATERIAL Direct operated
◆ The cartridge body, the slip-on coil and the armature tube are NBR or FKM (Viton) as standard, choice in the type code
zinc-nickel coated Proportional, inverse

STANDARDS INSTALLATION NOTES Screw-in cartridge M22 x 1,5
Cartridge cavity ISO 7789 Mounting type Screw-in cartridge M22 x 1,5 Nominal pressure range p 20 bar 20 200 bar 200
Explosion protection Directive 2014 / 34 / EU (ATEX) Mounting position Any, preferably horizontal N 100 bar 100 315 bar 315
Flameproof enclosure EN / IEC / UL 60079-1, 31 Tightening torque M = 60 Nm Screw-in cartridge 160 bar 160 350 bar 350
D
Cable entry EN 60079-0, 1, 7, 15, 31 M = 9 Nm knurled nut Nominal voltage U 12 VDC G12
D
Protection class EN 60 529 Attention! For stack assembly please observe the remarks in the N 24 VDC G24
Contamination ISO 4406 operating instructions without coil X5
efficiency Slip-on coil Metal housing round W
Metal housing square M
COMMISSIONING
Attention! The solenoid coil must only be put into operation, if the Connection execution Connector socket EN 175301-803 / ISO 4400 D
requirements of the operating instructions supplied are Connector socket AMP Junior - Timer J
observed to their full extent. In case of non-observance, Connector Deutsch DT04 - 2P G
no liability can be assumed. Sealing material NBR
FKM (Viton) D1

Design index (subject to change)
Wandfluh AG Postfach CH-3714 Frutigen 2.3-548
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 4/4 Edition: 21 21 2.3-547 E www.wandfluh.com Illustrations are not binding Data subject to change 1/4 Edition: 19 29 2.3-548 E
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