Description Size 6 Component series 4X Maximum operating pressure 210 bar Maximum flow 60 l/min Features Sandwich plate valve Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole) 4 pressure ratings 4 optional adjustment types: • Rotary knob • Threaded pin with hexagon and protective cap • Lockable rotary knob with scale • Rotary knob with scale Check valve, optional (version “A” only) Product description Valve type ZDZ is a direct operated pressure sequence valve in sandwich plate design. It is used for the pressure-dependent connection of a second system. The sequencing pressure is set via the adjustment type (4). Version "P" The compression spring (3) holds the control spool (2) in the initial position – the valve is blocked. The pressure in channel P➁ is applied via the control line (5) at the spool face of the control spool (2) opposite the compression spring (3). If channel P➁ reaches the set value of the compression spring (3), the control spool (2) is moved to the left and the connection from P➁ to P➀ is opened. The system connected to channel P➀ is connected without a pressure drop in channel P➁. The pilot oil return from the spring chamber (7) is always realized externally via the bore (6) to channel T (Y). A pressure gauge connection (8) enables control of the sequencing pressure at the valve. Version "A" Here, pressure sequencing is realized in channel A. Control signal and pilot fluid are supplied internally from channel A➀. A check valve can be optionally installed for free hydraulic fluid return flow from A➁ to A➀. Type ZDZ 6 DP1–4X/…YM… Type ZDZ 6 DA1–4X/…YM ➀ component side ➁ plate side Type code 01 02 03 04 05 06 07 08 09 10 11 12 13 Z DZ 6 D – 4X / Y * 01 Sandwich plate valve Z 02 Sequence valve DZ 03 Size 6 6 04 Direct operated D 05 Pressure limitation in channel P➀ P Pressure limitation in channel A➁ A Adjustment type 06 Rotary knob 1 Grub screw with hexagon and protective cap 2 Lockable rotary knob with scale 1) 3 Rotary knob with scale 7 07 Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions) 4X Pressure rating 08 Maximum sequencing pressure 25 bar 25 Maximum sequencing pressure 75 bar 75 Maximum sequencing pressure 150 bar 150 Maximum sequencing pressure 210 bar 210 09 Internal pilot oil supply, external pilot oil return Y 10 With check valve 2) no code Without check valve M 3) Seal material 11 NBR seals no code FKM seals V Observe compatibility of seals with hydraulic fluid used. 12 Without locating hole no code With locating hole /60 4) 13 Further details in the plain text * 1) H-Key with material no. R900008158 is included in the scope of delivery. 2) Only version "A" 3) Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order) Technical data general Size 6 Weight (approx.) kg 1.2 Installation position any Ambient temperature range NBR seals °C -30 … +80 FKM seals °C -20 … +80 hydraulic Size 6 Maximum operating pressure Port P bar 210 Anschluss A bar 2
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