Description Size 25 … 80 Component series 1X Maximum operating pressure 350 bar Maximum flow 1200 l/min Features Pilot operated check valve For threaded connection (NG25 and 32) For flange connection according to ISO 6162-1 (from NG40) For direct attachment to the working cylinder With or without pre-decompression, optional Integrated high-pressure port Product description Type SFA…GT0-1X/M/01 (without pre-decompression) Type SFA…FT1-X/M/01 (with pre-decompression) Type code 01 Prefill valves SFA 02 Size 25 25 Size 32 32 Size 40 40 Size 50 50 Size 63 63 Size 80 80 03 Threaded connection (only NG25 and 32) G Flange connection (from NG40) F 04 Without tank bore no code With tank bore (from NG32) T 05 With pre-decompression (from NG32) 1 Without pre-decompression 0 06 Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) 1X Seal material 07 NBR seals M Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) Connection version 08 Threaded holes with pipe thread according to DIN 3852 part 2 01 09 Further details in the plain text * 01 02 03 04 05 06 07 08 09 SFA – / M / 01 * Technical data general Nenngröße 25 32 40 50 63 80 Weight (approx.) kg 4.5 6 7 10.5 16 23 Installation position any Ambient temperature range °C -30 … +80 hydraulic Size 25 32 40 50 63 80 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 125 200 300 500 800 1200 Case of application 2 l/min 90 170 250 400 650 1000 Case of application 3 l/min 60 140 220 360 560 900 Case of application 4 l/min 40 100 150 240 380 620 Case of application 5 l/min 20 70 110 170 280 450 Druckflüssigkeit see table Hydraulic fluid temperature range 3) °C -30 … +80 Viscosity range mm²/s 10 … 800 Maximum admissible degree of contamination of the hydraulic fluid 4) Class 20/18/15 according to ISO 4406 (c) 1) Pressure differential at the main poppet for overcoming the spring force 2) A to B 3) At the valve working ports 4) 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. Hydraulic fluid Classification Suitable sealing materials Standards Mineral oils and related hydrocarbons HL, HLP, HVLP NBR, FKM 3) DIN 51524 Bio-degradable Insoluble in water HETG NBR, FKM 3) VDMA 24568 HEES FKM 3) Soluble in water HEPG FKM 3) VDMA 24568 Flame-resistant Water-free HFDU, HFDR FKM 3) ISO 12922 HFC NBR ISO 12922 Important information on hydraulic fluids! Flame-resistant and bio-degradable: 3) Upon request Flow ‒ case of application 1 (A to B) Flow ‒ case of application 2 (A to B) Flow ‒ case of application 3 (A to B) Size of the filling tank at least 1.5 x cylinder content Flow ‒ case of application 4 (A to B) Flow ‒ case of application 5
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