Prefill клапаны SFE

Description Size 25 … 100 Component series 1X Maximum operating pressure 350 bar Maximum flow 2000 l/min Features Cartridge valve Pilot operated prefill valve (check valve) Block or cylinder installation Product description Type "SEF . Z" (with optional cover type "LFF") Type code 01 02 03 04 05 06 07 SFE 0 – 1X / M * 01 Prefill valves SFE 02 Size 25 25 Size 32 32 Size 40 40 Size 50 50 Size 63 63 Size 80 80 Size 100 100 03 Block installation P Cylinder installation 1) Z 04 without pre-decompression 0 05 Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) - Size 10 1X Seal material 06 NBR seals (other seals on request) M Observe compatibility of seals with hydraulic fluid used. 07 Further details in the plain text * 1) Control cover type “LFF” incl. matching mounting kit (separate order, see page 8): With NG25 and 32, alternative control covers type "LFA.D-7X/....F…" (see RE 21010) may be used. Technical data general Size 25 32 40 50 63 80 100 Weight kg 0.53 1.05 1.94 3.2 6.48 10.3 22.15 Installation position any Ambient temperature range 1) °C -30 … +80 1) NBR seals hydraulic Size 25 32 40 50 63 80 100 Maximum operating pressure Port P bar 350 Anschluss A bar 16 Port B bar 350 Anschluss X bar 150 Cracking pressure 1) bar ≈ 0.12 Maximum flow 2) Case of application 1 l/min 100 170 240 360 580 810 1210 Case of application 2 l/min 90 140 200 320 510 710 1070 Case of application 3 l/min 60 100 140 220 350 480 730 Case of application 4 l/min 50 70 100 160 260 360 540 Druckflüssigkeit Mineral oil (HL, HLP) to DIN 51524;fast bio-degradable hydraulic fluids according to VDMA 24568; HETG (rape seed oil); other hydraulic fluids on enquiry Hydraulic fluid temperature range °C -30 … +80 Viscosity range mm²/s 10 … 800 Maximum admissible degree of contamination of the hydraulic fluid 3) Class 20/18/15 according to ISO 4406 (c) 1) Pressure differential at the main poppet for overcoming the spring force 2) Pulling function (A to B) 3) 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. Flow ‒ case of application 1 (A to B) Flow ‒ case of application 2 (A to B) Size of the filling tank at least 1.5 x cylinder content Flow ‒ case of application 3 (A to B) Flow ‒ case of application 4 (A to B) Attention! Faulty dimensioning of prefill valves and connection lines may lead to cavitation effects. The consequences affect the reliability and durability of products! Attention! An underdimensioned prefill valve and/or an underdimensioned line leads to gas leaks from the hydraulic fluid with corresponding consequences and often to long-term damage at the cylinder seals. Notice! For limit areas, please contact us. It is often sufficient, to select a pipeline which is one size larger. 1 Cylinders 2 Prefill valve a at least 300 mm with