3-way flow control valve type UDUE10
6Pages

3-way flow control valve type UDUE10 NS10 RAT MANUA NUAL DATA SHEET - OPERATION MANUA L APPLICATION 3-way flow control valve type UDUE10… is intended for independent from pressure on supply side of (pump) setting flow rate in hydraulic system. It enables to control speed movement of receiver - mostly piston rod or hydraulic motor. Supply stream (port P) is divided on priority stream directed to port A and residual discharged by port B to reservoir or supply other receiver. The principle of regulator operation is achieved by division of supply stream (port P) on priority stream directed to port A and residual stream (port B). . 3-way regulator type UDUE10… consists of two principal valves: throttle and differential. Throttle valve act as measuring and consists of choke (1) made in form of poppet valve and setting (2). Differential valve acts as regulator and consists of spool (3) and spring (4). Hydraulic fluid flowing through the valve from port P to A causes drop of pressure on choke (1), which depends on setting and current flow value through choke (1). Pressure difference before and after choke (1) acts on spool (3) and after overcoming spring preload (4) causes opening the way from port P to B enabling residual stream flow. Spool (3) gets position of balance at the moment when pressure drop on measuring throttle (1) is corresponding to spring preload (4). It means that stream value flowing through port A is constant, independent from pressure on supply side (port P), and is dependent only on position of regulator setting. Regulator is equipped with check valve (5), enabling free flow from port A to P.

TECHNICAL DATA Hydraulic fluid Req fl cle ness cl lea Required f luid c leanliness c lass Nominal fluid viscosity Viscosity range Fluid temperature range (in a tank) Ambient temperature range operat ati press Max operating pres sure Min operating pressure Nominal flow (priority stream ) Q A omi fl priority or fl upply stream Max f low (supply s tream ) Q P INSTALLATION AND OPERATION REQUIREMENTS 1. During the operation one must maintain the proper recommended fluid viscosity and provide proper specified Sheet filtration specified in this Data Sheet - Operation Manual. failureIn order to...

OVERALL AND CONNECTION DIMENSIONS DUE valve type U DUE10... threaded c onnect ions P , A, B hreaded co necti dimen dime nsion threaded c onnect ion hre aded co necti P

measured at viscosity ν = 41 mm 2/s and temperature t = 50 C Characteristics of regu lation r ange aracteristics regulati ra acter Characteristic of priority discharge effect Q A (port A) from position of setting knob (scale) UDU /mi for valve type UDUE10... for flow rate on supply side (port P) Q P = 70 dm3/min 100 90 5 3 4 6 sitio settin tting positi on of settin g knob [scale] Flo character stics acteri Flow c haracter ist ics Characteristic of dependence priority discha rge effect Q A from pressure changes on receiver p A (port A) 30 25

UDUE Nominal size (NS) NS10 Series number (20 - 29) - connection and installation dimensions unchanged = 2X series 22 = 22 Flow range acc. to characterictics - page 4 Type of setting element knob with scale (1 turn) Further requirements in clear text (to be agreed with the manufacturer) NOTES: Flow control valve should be ordered according to the above coding. The symbols in bold are preferred versions in short delivery time. Coding example: UDUE10 - 22/50 - 4