The valve type DZ 6 DP is a direct operated pressure sequence valve. Through two long-term and in-depth cooperation with Rexroth, Huade® hydraulic pressure valves can match Rexroth in performance. This pressure sequence valve can be widely used in the hydraulic system of lifting and transportation machinery, construction machinery, industrial vehicles, machine tools, ships, metallurgy and other equipment.
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Technical Data |
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Inlet pressure,port P, B (X） (MPa) |
up to 31.5 |
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Outlet pressure,port A (MPa) |
to 21.0 |
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Back pressure,port T (MPa) |
to 16.0 |
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Max.permissible flow (L/min) |
to 60 |
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Fluids |
Mineral oil (for NBR seal),or phosphate ester (for FPM seal) |
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Viscosity range(mm ²/s) |
10~800 |
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Fluid temperature range(℃) |
-30 up to +80 |
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Fluid cleanliness (um) |
Fluid cleanliness Maximum permissible degree of contamination of the fluid to NAS 1638 Class 9 |
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Max.flow (L/min) |
up to 60 |
Features:
▶ For subplate mounting
▶ 5 pressure stages
▶ 4 Adjusting elements:
. Rotary knob
. Head screw with hexagon and protective cap,
Lockable rotary knob with scale
Rotary knob with scale
▶ Check valve,optional
▶ Mounting pattern to DIN 24 340, form A, ISO 4401 and CETOP - RP 121H
Application:
Pressure Sequence Valve DZ 6 DP is used for the pressure dependent connection of a second system.
The setting of the sequence pressure is via the adjusting element(4).
The spring (3) holds the control spool(2) in the neutral position, the valve is blocked. The pressure in channel P is present at the spool surface of the control spool (2) opposite the spring (3) via the control line (6).
If the pressure in channel P reaches the set value of the spring (3) the control spool (2) is moved to the left and the connection P to A is opened. The system at channel A is connected without a pressure decrease falling in channel P.
The control signal originates internally via the control line (6) from channel P or externally via port B (X).
Depending on the use of the valve the leakage oil drain is externally via port T(Y) or internally via A.
structure of DZ 6 DP 1 -50B
Symbols of DZ 6 DP-10B
Address
No. 27, Yangsha Road, Huilong Town, Nantong City, Jiangsu Province, China
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