Page 648 - Hydrover-hydraulic-integrated-circuits-catalogue
P. 648

COMPONENTS






       COUNTERBALANCE, STANDARD POPPET TYPE
                                  COUNTERBALANCE, STANDARD POPPET TYPE
       DIFFERENTIAL AREA          DIFFERENTIAL AREA
       SPECIAL CAVITY             SPECIAL CAVITY
       VBSO-SEC-30                VBSO-SEC-30  04.52.04 - X - 99 - Z          04.52.04 - X - 99 - Z























                                                                            TECHNICAL DATA
                                                                   Max. pressure:   5000 psi  (350 bar)

                                                                   Max. flow:     16 gpm     (60 l/min)

                                                                   Special cavity : 063 (see page CT.S.002.U)

                                                                   Installation torque :  86-95 ft-lb   (116-128 Nm)

                                                                   Weight:        0.551 lbs   (0.250 Kg)

                                                                   Pressure setting: at least 1.3 times the load induced
       When pressure at 3 rises above the spring bias pressure, the check seat is pushed   pressure
       away from the piston and flow is allowed from 3 to 2.  When load pressure at 2 rises
       above  the  pressure  setting,  the  direct-acting,  differential  area  relief  function  is
       activated  and  flow  is  relieved  from  2  to  3.    With pilot  pressure  at  1,  the  pressure
       setting is reduced in proportion to the stated ratio of the valve, until fully open with
       free-flow from 2 to 3.  The spring chamber is drained to 3, and any back-pressure at
       3 is additive to the pressure setting in all functions.


                                                                    X            PILOT RATIO


                                                                    03               4.2 : 1











                                     SPRINGS                                    OPTIONS
           Z      Adj. press.  Press. increase   Standard setting
                   range psi   psi / turn   psi (bar)                   Ordering code      Description
                    (bar)   (bar/turn)  (Q=5 l/min)
                              812
           20      870-3000  (56)       2900
                                        (200)
                   (60-210)
                             2001
           35     1450-5000  (138)      5000
                   (100-350)
                                        (350)
                                                                       11.04.23.002
                                                                                           Sealing cap
                                                                   Special settings available. Contact factory authorized
                                                                   representative for ordering code.
                                                                                                     January 2025 edition
       648                                               General catalogue                  Page. AS5.050
       Rev.0605
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