Load Control Valves
164Pages

Safety for Hydraulics Load Control Valve, series Cindy Standard motion and progress Replace for: 2.3.3 1/164 Classification: 430.90.70. Reference: 300−P−9050012−E−02/04.04

1. Selection table for type S, serie Cindy B C dy 12 - B Cind 12- B- S to 15 [l/m ] 50 [ min.] X sect. 2., p. 4 X in return line Catalogue data sheet / page nos. Pilot−pressure independent of back−pressure Pilot pressure depending of back−pressure Over−compensation is possible With thermal expansion only (see Genaral Information Leaflet, section 10.3) With secondary pressure relief valve (see Genaral Information Leaflet, section 10.) Option: port A with pipe−threaded flange (see Genaral Information Leaflet, section 11.1) Option: port B with pipe−threaded flange (see Genaral Information...

2.1 Port sizes / weight For tightening torques, see Cindy General Information leaflet, section 6. Required quality of the mating surface:

2.3 Pilot−control variants (each can be rotated through 180°) X X 22 A/F X 25.5 25 (132.5) to port B B MB (28) 55 6 A/F 45 16.5 X 25.5 45 50 app.22 Pilot−control with the hydro−mechanical stroke limiter" (H) 55 (28) 22 A/F 50 Pilot−control with the damping cover" (D) 6 A/F 21 27 A/F 21 27 A/F 25 (132.5) to port B B MB A1 X 300−P−9050012−E−02/04.04 A A1 X A 5/164

2.4 Characteristic curves (measured at 33 mm2/s [cSt]) 2.4.1 ∆p from A ! B (Lifting) 20 ∆p [bar] 15 10 5 0 0 50 100 150 100 150 Flow rate [l/min] 2.4.2 ∆p from B ! A (Lowering; spool fully open) 40 ∆p [bar] 30 20 10 0 0 50 Flow rate [l/min] 300−P−9050012−E−02/04.04 6/164

Valve series load control valve Nominal size Application / valve type Load control valve, flange-mounted Seal material Nitrile (standard) Temperature range Fixing screws Without fixing screws Black fixing screws "Dacromate" fixing screws (anti-corrosion) Orifice combinations (see General Information Leaflet, section 9.) Pilot-control options Pilot-control with "standard cover" Pilot-control with "damping cover" Pilot-control with "hydro-mechanical stroke limiter" (see General Information Leaflet, section 9.) Influence of return line (back pressure) to pilot-pressure Dependent on back...

3.1 Port sizes / weight For tightening torques, see Cindy General Information leaflet, section 6. Required quality of the mating surface:

3.3 Pilot−control variants (each can be rotated through 180°) X X 22 A/F X 25.5 25 (132.5) to port B B MB (28) 55 6 A/F 45 16.5 X 25.5 45 50 app.22 Pilot−control with the hydro−mechanical stroke limiter" (H) 55 (28) 22 A/F 50 Pilot−control with the damping cover" (D) 6 A/F 21 27 A/F 21 27 A/F 25 (132.5) to port B B MB A1 A1 X 300−P−9050012−E−02/04.04 L1 L A X L1 L A 9/164

3.4 Characteristic curves (measured at 33 mm2/s [cSt]) 3.4.1 ∆p from A ! B (Lifting) 20 ∆p [bar] 15 10 5 0 0 50 100 150 100 150 Flow rate [l/min] 3.4.2 ∆p from B ! A (Lowering; spool fully open) 40 ∆p [bar] 30 20 10 0 0 50 Flow rate [l/min] 300−P−9050012−E−02/04.04 10/164

Valve series load control valve Nominal size Application / valve type Load control valve, flange-mounted Seal material Nitrile (standard) Temperature range Fixing screws Without fixing screws Black fixing screws "Dacromate" fixing screws (anti-corrosion) Orifice combinations (see General Information Leaflet, section 9.) Pilot-control options Pilot-control with "standard cover" Pilot-control with "damping cover" Pilot-control with "hydro-mechanical stroke limiter" (see General Information Leaflet, section 9.) Influence of return line (back pressure) to pilot-pressure Independent of back...

4.1 Port sizes / weight For tightening torques, see Cindy General Information leaflet, section 6. Required quality of the mating surface:

21 4.3 Pilot−control variants (each can be rotated through 180°) 27 A/F X X 22 A/F X 25.5 25 (132.5) to port B B MB (28) 55 6 A/F 45 16.5 X 25.5 45 50 app.22 Pilot−control with the hydro−mechanical stroke limiter" (H) 55 (28) 22 A/F 50 Pilot−control with the damping cover" (D) 6 A/F 21 27 A/F 25 (132.5) to port B B MB A1 X 300−P−9050012−E−02/04.04 A A1 X A 13/164

4.4 Characteristic curves (measured at 33 mm2/s [cSt]) (Lowering; spool fully open) Flow rate [l/min] secondary pressure relief Flow rate [l/min]

Valve series load control valve Nominal size Application / valve type Load control valve, flange-mounted Seal material Nitrile (standard) Temperature range Fixing screws Without fixing screws Black fixing screws "Dacromate" fixing screws (anti-corrosion) Pressure setting Secondary pressure relief Pressure relief from B to A Orifice combinations (see General Information Leaflet, section 9.) Pilot-control options Pilot-control with "standard cover" Pilot-control with "damping cover" Pilot-control with "hydro-mechanical stroke limiter" (see General Information Leaflet, section 9.) Influence of...

5.1 Port sizes / weight For tightening torques, see Cindy General Information leaflet, section 6. Required quality of the mating surface:

5.3 Pilot−control variants (each can be rotated through 180°) X X 22 A/F X 25.5 25 (132.5) to port B B MB (28) 55 6 A/F 45 16.5 X 25.5 45 50 app.22 Pilot−control with the hydro−mechanical stroke limiter" (H) 55 (28) 22 A/F 50 Pilot−control with the damping cover" (D) 6 A/F 21 27 A/F 21 27 A/F 25 (132.5) to port B B MB A1 A1 X 300−P−9050012−E−02/04.04 L1 L A X L1 L A 17/164

5.4 Characteristic curves (measured at 33 mm2/s [cSt]) (Lowering; spool fully open) Flow rate [l/min] secondary pressure relief Flow rate [l/min]

Valve series load control valve Nominal size Application / valve type Load control valve, flange-mounted Seal material Nitrile (standard) Temperature range Fixing screws Without fixing screws Black fixing screws "Dacromate" fixing screws (anti-corrosion) Pressure setting Secondary pressure relief Pressure relief from B to A Orifice combinations (see General Information Leaflet, section 9.) Pilot-control options Pilot-control with "standard cover" Pilot-control with "damping cover" Pilot-control with "hydro-mechanical stroke limiter" (see General Information Leaflet, section 9.) Influence of...