Description Size 16 Component series 1X Maximum operating pressure 250 bar Maximum flow 250 l/min Features 6/2 directional design For subplate mounting Spool position monitoring, optional Product description Valve type LS 1377 is a directional spool valve with hydraulic actuation. It controls the start, stop and direction of a flow. The directional valves basically consist of the main valve with housing (1), the main control spool (2) and a return spring (3). The spring chamber (4) is depressurized and connected to port L. This is to prevent back pressure in the spring chamber (4) from building up due to internal leakage. The cover chamber (5) is connected to port Y. With pilot pressure loading of the front side of the main control spool (2) in the cover chamber (5) via port Y, the spool is moved to the spool position. In the valve, the required ports are connected in this way. If the loaded control spool area is depressurized, the return spring (3) in the spring chamber (4) causes the valve to return to its initial position. Type code 01 02 03 04 05 06 LS 1377 X201 - 1X / / * 01 Directional spool valve, direct operated, hydraulically actuated LS 1377 02 Symbols; for the possible version, see "Symbols/Circuit diagrams" X201 03 Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) 1X Spool position monitoring 04 Without position switch no code – Inductive position switch type QM Monitored spool position "a" QMAG24 Monitored spool position "b" QMBG24 Monitored spool position "a" and "b" QMABG24W For more information see "Extended functions and versions" Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") 05 NBR seals no code FKM seals V 06 Further details in the plain text * Technical data (For applications outside these values, please consult us!) general Size 16 Weight (approx.) kg 15.3 Installation position horizontal Ambient temperature range °C -30 … +50 Storage temperature range °C +5 … +40 Surface protection Valve body Painting MTTFD values according to EN ISO 13849 1) Years 150 1) For further details, see data sheet 08012 hydraulic Size 16 Maximum operating pressure bar 250 Maximum pilot pressure bar 250 Minimum pilot pressure bar 30 Maximum flow l/min 250 Hydraulic fluid see table "Hydraulic fluid" Hydraulic fluid temperature range at the valve working ports of the valve °C -30 … +70 Viscosity range mm²/s 2.8 … 380 Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) Class 20/18/15 Switching time according to ISO 6403 2) ON Pilot pressure 30 bar ms 250 Pilot pressure 150 bar ms 150 OFF ms 200 1) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. 2) The switching times for hydraulically actuated va
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