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力士樂電磁閥DZ20-1-52/50X產品的中英文介紹：

閥類型DZ是先導操作的壓力順序閥。

它用于第二系統的壓力相關的連接。

壓力順序閥基本上包括具有主閥芯插入件（7）的主閥（1）和具有調節(jié)類型和可選止回閥（3）的先導控制閥（2）。

根據先導油供給和返回以及相應的功能，進行以下區(qū)分：

預裝閥類型DZ。 。 -.-5X / ...（控制線4.1,12和13斷開;控制線4.2,14和15閉合）

通道A中施加的壓力通過控制管路（4.1）作用在先導控制閥（2）中的先導閥芯（5）上。同時，通道A中的壓力通過噴嘴（6）作用在主閥芯（7）的彈簧加載側上。如果通道P中的壓力超過在彈簧（8）處設定的值，則先導閥芯（5）抵抗彈簧（8）移動。在主閥芯（7）的彈簧加載側上的液壓流體現在經由噴嘴（9），控制邊緣（10）以及控制線（11）和（12）流入通道B.由此，在主滑閥（7）處發(fā)生壓降。主閥芯（7）向上移動，并打開通道A至B的連接。通道A中的壓力超過通道B中的值，超過彈簧（8）設置的值。在先導閥芯（5）處發(fā)生的泄漏通過先導控制閥的彈簧室（17）和控制管線（13）在內部導向通道B.如果次級回路（通道B）中的壓力超過壓力在通道A中，可以可選地安裝止回閥（3）用于自由回流。

預裝閥類型DZ。 。 -.-5X / .X ...（控制線路4.2,12和13斷開;控制線路4.1,14和15閉合）

原則上，該閥的功能對應于DZ型的功能。 。 -.- 5X / ...。然而，對于版本“X”，打開信號經由控制線X（4.2）從外部接收。

順序閥DZ型。 。 -.- 5X / .Y ...（控制線4.1,12和14或15斷開;控制線4.2和13閉合）

原則上，該閥的功能對應于DZ型的功能。 。 -.- 5X / ...。然而，在版本“Y”處，在引導閥芯（5）處發(fā)生的泄漏必須通過管線（14）或（15）通過減壓連接引導到罐。先導油通過管線（11）和（12）引入通道B中。

DZ型循環(huán)閥。 。 -.- 5X / .XY ...（控制線路4.2,14或15斷開;控制線路4.1,12和13閉合）

原則上，該閥的功能對應于DZ型的功能。 。 -.- 5X / ...。然而，對于版本“XY”，打開信號經由控制線X（4.2）從外部接收。先導閥芯（16）孔處的先導油和發(fā)生的泄漏必須通過管線（14）或（15）通過減壓連接被引導到油箱。

The valve type DZ is a pilot-operated pressure sequence valve.

It is applied for pressure-dependent connection of a second system.

The pressure sequence valve basically consists of main valve (1) with main spool insert (7) and pilot control valve (2) with adjustment type and optional check valve (3). 

According to the pilot oil supply and return and the respective function, the following differentiation is made: 

Preload valve type DZ. . -.-5X/… (control lines 4.1, 12 and 13 open; control lines 4.2, 14 and 15 closed) 

The pressure applied in channel A acts via the control line (4.1) on the pilot spool (5) in the pilot control valve (2). Simultaneously, the pressure in channel A acts via the nozzle (6) on the spring-loaded side of the main spool (7). If the pressure in channel P exceeds the value set at the spring (8), the pilot spool (5) is moved against the spring (8). The hydraulic fluid on the spring-loaded side of the main spool (7) now flows via the nozzle (9), the control edge (10) and control lines (11) and (12) into channel B. Due to this, a pressure drop occurs at the main spool (7). The main spool (7) is moved upwards and opens the connections from channel A to B. The pressure in channel A exceeds the value in channel B by the value set at the spring (8). The leakage occurring at the pilot spool (5) is directed internally via the spring chamber (17) of the pilot control valve and the control line (13) into channel B. If the pressure in the secondary circuit (channel B) exceeds the pressure in channel A, a check valve (3) may be optionally installed for free return flow. 

Preload valve type DZ. . -.-5X/.X… (control lines 4.2, 12 and 13 open; control lines 4.1, 14 and 15 closed) 

In principle, the function of this valve corresponds to the function of type DZ. . -.-5X/…. With version "X", however, the opening signal is received externally via control line X (4.2). 

Sequence valve type DZ. . -.-5X/.Y… (control lines 4.1, 12 and 14 or 15 open; control lines 4.2 and 13 closed) 

In principle, the function of this valve corresponds to the function of type DZ. . -.-5X/…. At version "Y", however, the leakage occurring at the pilot spool (5) has to be directed via line (14) or (15) to the tank by means of a depressurized connection. The pilot oil is directed via line (11) and (12) into channel B. 

Circulation valve type DZ. . -.-5X/.XY… (control lines 4.2, 14 or 15 open; control lines 4.1, 12 and 13 closed) 

In principle, the function of this valve corresponds to the function of type DZ. . -.-5X/…. With version "XY", however, the opening signal is received externally via control line X (4.2). The pilot oil at the pilot spool (16) bore and occurring leakage have to be directed via line (14) or (15) to the tank by means of a depressurized connection.