Description Size 10 Component series 5X Maximum operating pressure 350 bar Maximum flow 160 l/min Features 4/3-, 4/2- or 3/2-way version Porting pattern according to ISO 4401-05-04-0-05 Type of actuation: hand lever Product description Valves of type WMM are manually actuated directional spool valves. They control the start, stop and direction of a flow. The directional valves basically consist of housing (1), one type of actuation (2.1) (hand lever), control spool (3) and one or two return springs (4). When de-energized, the control spool (3) is held in the central position or in the initial position by the return springs (4). The control spool (3) is moved to the desired spool position by means of the types of actuation. Throttle insert The use of a throttle insert is required when, due to prevailing operating conditions, flows occur during the switching processes which exceed the performance limit of the valve. Type code 01 02 03 04 05 06 07 08 09 10 11 WMM 10 5X / / – * 01 3 main ports 3 4 main ports 4 Type of actuation 02 Hand lever WMM 03 Size 10 10 04 Symbols; for the possible version, see "Symbols/Circuit diagrams" 05 Component series 50 … 59 (50 … 59: unchanged installation and connection dimensions) 5X Control spool return 06 With spring return no code With detent F Corrosion resistance (outside) 07 None (valve housing primed) no code Improved corrosion protection (720 h salt spray test according to EN ISO 9227) J4 Throttle insert 1) 08 Without throttle insert no code With throttle insert: Connection Throttle Ø in mm 0,8 1,0 1,2 P B08 B10 B12 A H08 H10 H12 B R08 R10 R12 A and B N08 N10 N12 T 2) X08 X10 X12 Further throttle insert diameters upon request. Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") 09 NBR seals M FKM seals V Pilot oil port 10 Whitworth pipe thread G1/4 ‒ 11 Further details in the plain text * 1) When the admissible valve performance limit is exceeded, throttle inserts are to be installed (see "Performance limits"). 2) When throttle inserts are used in channel T, the pressure in the working ports and in case of connection to the tank chambers must not exceed 210 bar. Technical data general Size 10 Installation position any Weight 1 actuation cylinder kg 3.6 2 actuation cylinder kg 3.6 Ambient temperature range NBR seals °C -20 … +70 FKM seals °C -15 … +70 Storage temperature range °C -20 … +50 MTTFD values according to EN ISO 13849 1) Years 150 1) For further details, see data sheet 08012 hydraulic Size 10 Maximum operating pressure Port P bar 350 Port A bar 350 Port B bar 350 Port T 1) bar 210 Hydraulic fluid see table "Hydraulic fluid" Hydraulic fluid temperature range 2) NBR seals °C -20 … +80 FKM seals °C -15 … +80 Viscosity range mm²/s 2.8 … 500 Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 3) Class 20/18/15 Maximum flow l/min 160 Operating force With detent "F" N 30 … 40 With spring return N 18 … 20 Flo
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