力士乐DBA/DBAW型安全阀块（溢流阀）的特点： 泵的0压启动和油路；直接安装在泵的SAE压力油口上；快速压力增大；用于调节压力的4种调节类型，可选：旋钮、六角螺钉和保护帽、带刻度可锁定旋钮、带刻度旋钮；5 个压力等级，可选； 通过附带方向阀的电磁线圈操作卸载；集成的单向阀，可选；换向冲击衰减，可选（仅型号 DBAW）

    力士乐DBA/DBAW型泵安全块是集成到油路块中的先导式溢流阀，  可直接安装在泵的 SAE 压力油口上。  它们用于限制工作压力（DBA），或限制并以磁力卸载工作压 （DBAW）。  泵安全块（DBA）主要由阀组（1），主阀心（3）和带调整类型的，  用于压力调节的先导控制阀（2）组成。阀体具有油口 P（用于液压油  的输入）和油口 P1（用于输出）。这两个油口之间的通孔的支路中有  主阀心。该主阀心打开时，出现到油口 T 的连接 （油箱管路）。  

    Rexroth泵安全块型号DBA  施加于通孔中的压力作用于主阀芯（3）。同时，该压力通过带有  喷嘴（4）和（5）的控制油路（6）和（7）施加于主阀芯（3）  的弹簧负载侧，同时施加于先导控制阀（2）中的滚珠（8）。   如果通孔中的压力超过弹簧（9）上设定的值，则滚珠（8）背向  弹簧（9）打开。  通过控制油路（10）和（6）从通孔内部地提供此过程的信号。   此时主阀芯（3）的弹簧负载侧上的液压油通过控制油路（7），  喷嘴孔（11）和滚珠（8）流入弹簧腔（12）。从此处，液压油  通过控制油路（13）从内部流入油箱（对于型号 DBA），或通过  控制油路（14）从外部流入油箱（对于型号 DBA … Y）。   喷嘴 （4）和（5）可导致主阀芯（3）出现压降，从而使通道   P 到通道 T 的连接打开。现在，液压油从通道 P 流到通道 T，   从而维持设定的工作压力保持不变。  油口（15）可用于遥控。如果要在此处连接压力负载单元或压力  表隔离阀，则必须订购型号 SO616（没有喷嘴（4））。这样可  防止在操作压力表隔离阀时出现建压延迟或短时压降。  

    力士乐泵安全块型号DBAR（带单向阀）  集成单向阀可在泵断开连接的情况下维持系统压力，并防止液压  油流回泵中。  选择此阀即可满足对于单向阀的需求，无需其它的单向阀。

     力士乐泵安全块型号 DBAW...
此外，可通过控制附带方向阀（16）将其从压力限制功能切换至 0 压油路。因此，泵可以进行 0 压启动。带换向冲击衰减（叠加阀板）有泵安全块，  型号 DBAW…S6E...R12 和型号 DBAW…S6SM...B12  通过换向冲击衰减阀（17）可延迟打开从 B2 到 B1 或从 P2 到   P1 的连接，从而避免了回油管路中的压力峰值和减压冲击噪音。该阀安装在先导控制阀（2）和方向阀（16）之间。  衰减程度（降压冲击）取决于喷嘴（18）的规格。默认情况下，  安装喷嘴 Ø1.2 mm（订货代码 ..R12.. 或 ..B12..）。

    力士乐先导式溢流阀，Rexroth安全阀块，力士乐DBA/DBAW型泵用安全阀块（溢流阀）的型号展示：

R900918709 DBA30H2N1X/315                 R900734350 DBAR40H2N1X/200
R900776632 DBAR40H2N1X/200V               R901061251 DBAR40H2N1X/315
R901048683 DBAW30AF7N1X/200S6EG24N9K4R12  R901069814 DBAW30BF1N1X/200-6EG24N9K4
R901050550 DBAW30BF2N1X/100-6EG24N9K4     R901095685 DBAW30BF2N1X/100S6EG24N9K4R12
R900939084 DBAW30BF2N1X/200-6EG24N9K4     R900751662 DBAW30BF2N1X/200S6EG24N9K4R12
R901104815 DBAW30BF2N1X/250S6EG24K4R12    R901104816 DBAW30BF2N1X/250S6EG24K4R12V
R900928307 DBAW30BF3N1X/100-6EG24N9K4     R900956528 DBAW30BF3N1X/200S6EG24N9K4R12
R900956526 DBAW30BF3N1X/200Y6EG24N9K4     R901080696 DBAW30AH2N1X/200-6EG24N9K4
R900962982 DBAW30AH1N1X/200-6EG24N9K4     R900719969 DBAW30AH2N1X/100S6EG24N9K4R12
R900745510 DBAW30AH2N1X/200US6EG24N9K4R12 R900937215 DBAW30AH2N1X/315-6EG24N9K4
R901205950 DBAW30AH2N1X/315-6EG24N9K4V    R900248439 DBAW30AH3N1X/200-6EG24NK4
R900715442 DBAW30AH3N1X/315-6EG24N9K4     R900708530 DBAW30AH3N1X/350-6EG24NK4
R901127685 DBAW30BH1N1X/200-6EG24N9K4     R901166134 DBAW30BH1N1X/200S6EG24N9K4R12
R900920521 DBAW30BH2-1X/315YS6EG24N9K4R12 R900930380 DBAW30BH2-1X/350Y6EG24N9K4
R900781550 DBAW30BH2N1X/100-6EG24N9K4     R901074780 DBAW30BH2N1X/100-6EW230N9K4
R900945174 DBAW30BH2N1X/100S6EG24N9K4R12  R900958540 DBAW30BH2N1X/200-6EG24N9K4
R901129776 DBAW30BH2N1X/200-6EG24N9K4V    R900915901 DBAW30BH2N1X/200S6EG24N9K4R12
R901032855 DBAW30BH2N1X/200U6EG24N9K4     R901108158 DBAW30BH2N1X/200Y6EG24N9K4
R900950097 DBAW30BH2N1X/315-6EG24N9K4     R900779530 DBAW30BH2N1X/315-6SMG24K4V
R900753279 DBAW30BH2N1X/315S6EG24K4R12    R900939072 DBAW30BH2N1X/315S6EG24K4R12V
R900954320 DBAW30BH2N1X/315S6EG24N9K4R12  R901033532 DBAW30BH2N1X/315S6EG24N9K4R12V
R900757114 DBAW30BH2N1X/315S6EW230K4R12V  R901079995 DBAW30BH2N1X/315S6EW230N9K4R12
R901023906 DBAW30BH2N1X/315US6EG24N9K4R12 R900720302 DBAW30BH2N1X/315Y6EG24N9K4
R900955986 DBAW30BH2N1X/315YS6EG24N9K4R12 R900930445 DBAW30BH2N1X/350-6EG24N9K4
R900964963 DBAW30BH2N1X/350S6EG24K4R12    R900931039 DBAW30BH2N1X/350S6EG24N9K4R12
R901132647 DBAW30BH2N1X/350US6EG24N9K4R12 R900770283 DBAW30BH2N1X/350Y6EG24N9K4
R901133164 DBAW30BH2N1X/350YS6EG24N9K4R12 R900978176 DBAW30BH2N1X/350YS6SMG24N9K4B12
R900709688 DBAW30BH2N1X/350YU6EG24N9K4    R900967133 DBAW30BH3N1X/315-6EG24N9K4
R900763493 DBAW30BH3N1X/315-6EG24N9K4V    R901134846 DBAW30BH3N1X/350S6EG24N9K4R12
R901081746 DBAW30BH3N1X/350S6SMG24N9K4B12 R901045331 DBAW40AF7N1X/200S6EG24N9K4R12
R900967824 DBAW40BF1N1X/200S6EG24N9K4R12  R901104969 DBAW40BF2-1X/200YS6EG24N9K4R12
R900738371 DBAW40BF2N1X/50-6EG24N9K4      R900737176 DBAW40BF2N1X/50-6EG24NK4
R900772595 DBAW40BF2N1X/50S6EG24N9K4R12   R901105727 DBAW40BF2N1X/50YU6EG24N9K4
R900706671 DBAW40BF2N1X/100-6EG24N9K4     R901074773 DBAW40BF2N1X/100-6EW230N9K4
R901163402 DBAW40BF2N1X/100U6EG24N9K4     R900935402 DBAW40BF2N1X/100YS6EG24N9K4R12
R900950324 DBAW40BF2N1X/200-6EG24N9K4     R900942443 DBAW40BF2N1X/200S6EG24N9K4R12
R901034689 DBAW40BF2N1X/200S6EG24N9K4R12V R901042474 DBAW40AH2N1X/315-6EG24N9K4
力士乐泵用安全阀块
R900939791 DBAW40BF2N1X/200YS6EG24N9K4R12  R901205842 DBAW40AH2N1X/315-6EG24N9K4V
R900959185 DBAW40AH2N1X/315S6EG24N9K4R12   R901183200 DBAW40AH2N1X/350-6EG24N9K4
R900746748 DBAW40AH3N1X/315-6EG24NK4       R900729903 DBAW40BH1-1X/315-6EG24K4
R900752773 DBAW40BH2-1X/315-6EG24N9K4      R901023816 DBAW40BH2-1X/350-6EG24N9K4
R900972544 DBAW40BH2N1X/100-6EG24N9K4      R900942433 DBAW40BH2N1X/100S6EG24N9K4R12
R900950438 DBAW40BH2N1X/200-6EG24N9K4      R900923288 DBAW40BH2N1X/200S6EG24N9K4R12
R900931102 DBAW40BH2N1X/315-6EG24N9K4      R900976490 DBAW40BH2N1X/315S6EG24N9K4R12
R900977912 DBAW40BH2N1X/315YS6EG24N9K4R12  R900941385 DBAW40BH2N1X/350-6EG24N9K4
R900931373 DBAW40BH2N1X/350S6EG24N9K4R12   R900946426 DBAW40BH2N1X/350S6SMG24N9K4B12
R901247565 DBAW40BH2N1X/350S6SMG205N9K4B12 R901088211 DBAW40BH2N1X/350YU6EG24N9K4
R900951211 DBAW40BH7N1X/315S6EG24N9K4R12   R900976291 DBAW40BH7N1X/315S6EW230N9K4R12
R901104820 DBAWR30AF2N1X/250-6EW230N9K4    R900958706 DBAWR30BF1N1X/200-6EG24N9K4
R900709016 DBAWR30BF2-1X/100S6EG24N9K4R12  R900919943 DBAWR30BF2-1X/200-6EG24N9K4
R901104823 DBAWR30BF2-1X/250-6EG24NK4      R900923092 DBAWR30BF2N1X/50-6EG24N9K4
R901044173 DBAWR30BF2N1X/100S6EG24N9K4R12  R901014482 DBAWR30BF2N1X/100S6SMG24N9K4B12
R900947684 DBAWR30BF2N1X/200-6EG24N9K4     R900935130 DBAWR30BF2N1X/200S6EG24N9K4R12
R901104824 DBAWR30BF2N1X/250-6EG24N9K4     R901104825 DBAWR30BF3-1X/250-6EG24N9K4
R901143487 DBAWR30BF3N1X/100S6EG24K4R12    R901054982 DBAWR30AH2N1X/200-6EG24N9K4
R900727796 DBAWR30AH2N1X/315-6EG24N9K4     R901032801 DBAWR30AH2N1X/315S6EG24N9K4R12
R900921138 DBAWR30BH2-1X/200-6EG24N9K4     R900947358 DBAWR30BH2-1X/200S6EG24N9K4R12
R900956937 DBAWR30BH2-1X/315-6EG24N9K4     R901226630 DBAWR30BH2-1X/315-6EW230N9K4
R900764231 DBAWR30BH2-1X/315S6EG24N9K4R12  R900964655 DBAWR30BH2N1X/100-6EG24N9K4
R900923091 DBAWR30BH2N1X/200-6EG24N9K4     R900931637 DBAWR30BH2N1X/200-6EG205N9K4
R901229859 DBAWR30BH2N1X/200-6EW230N9K4    R900727712 DBAWR30BH2N1X/200S6EG24N9K4R12
R900714425 DBAWR30BH2N1X/200S6EW230N9K4R12 R900923059 DBAWR30BH2N1X/315-6EG24N9K4
R900940034 DBAWR30BH2N1X/315-6EG24N9K4V    R901028304 DBAWR30BH2N1X/315S6EG24K4R12
R900927916 DBAWR30BH2N1X/315S6EG24N9K4R12  R900944265 DBAWR30BH2N1X/315S6EG24N9K4R12V
R900929770 DBAWR30BH2N1X/315U6EG24N9K4     R901224898 DBAWR30BH2N1X/315US6EW230N9K4R12
R901242965 DBAWR30BH3N1X/315S6EG24K4R12    R901089222 DBAWR40AF1N1X/100-6EG24N9K4
R900756487 DBAWR40BF1N1X/200S6EG24N9K4R12  R901104980 DBAWR40BF2-1X/200-6EG24NK4
R901159631 DBAWR40BF2-1X/200YS6EG24N9K4R12 R901034061 DBAWR40BF2N1X/50-6EG24N9K4
R901018301 DBAWR40BF2N1X/50S6EG24N9K4R12   R901116213 DBAWR40BF2N1X/50Y6EG24NK4
R900960249 DBAWR40BF2N1X/100S6EG24N9K4R12  R900943941 DBAWR40BF2N1X/200-6EG24N9K4
R900954049 DBAWR40BF2N1X/200S6EG24N9K4R12  R901104993 DBAWR40BF2N1X/200Y6EG24N9K4
R901104994 DBAWR40BF2N1X/200YS6EG24N9K4R12 R900779157 DBAWR40AH2N1X/315-6EG24N9K4
R900708648 DBAWR40AH2N1X/315-6EG24NK4      R900937540 DBAWR40AH2N1X/315S6SMG24N9K4B12
R901110802 DBAWR40BH1N1X/100Y6EG24N9K4     R900776404 DBAWR40BH1N1X/200-6EG24N9K4
R901221734 DBAWR40BH2N1X/100S6EG24N9K4R12  R900953247 DBAWR40BH2N1X/200-6EG24N9K4
R900784631 DBAWR40BH2N1X/200-6EG24N9K4V    R900923632 DBAWR40BH2N1X/200S6EG24N9K4R12
R901160794 DBAWR40BH2N1X/200S6EG24N9K4R12V R900931104 DBAWR40BH2N1X/315-6EG24N9K4
R900784743 DBAWR40BH2N1X/315-6EG24N9K4V    R901028306 DBAWR40BH2N1X/315S6EG24K4R12
R900936874 DBAWR40BH2N1X/315S6EG24N9K4R12  R900244092 DBAWR40BH2N1X/315US6EG24N9K4R12
R901224897 DBAWR40BH2N1X/315US6EW230N9K4R12  R900785054 DBAW30BF2N1X/150Y6EG24N9K4E
R901242967 DBAWR40BH3N1X/315S6EG24K4R12    R901100423 DBAWR40BH2N1X/315YUS6EG24N9K4R12
R900773346 DBAW30BH1N1X/150-6EG24N9K4E   R901017044 DBAW30BH1N1X/200-6EG24N9K4E
R901020572 DBAW30BH1N1X/230-6EG24N9K4E   R901141394 DBAW30BH2N1X/200-6EG24N9K4E
R901032410 DBAW30BH2N1X/200Y6EG24N9K4E   R901040450 DBAW40BF1N1X/100-6EG24N9K4E
R901009051 DBAW40BF1N1X/150-6EG24N9K4E   R901096458 DBAW40BH1N1X/60-6EG24N9K4E
R901137289 DBAW40BH1N1X/120-6EG24N9K4E   R901008434 DBAW40BH1N1X/150-6EG24N9K4E
R900772000 DBAW40BH1N1X/150Y6EG24N9K4E   R901237833 DBAW40BH1N1X/160-6EG24N9K4E
R901132623 DBAW40BH1N1X/210-6EG24N9K4E   R901237834 DBAW40BH1N1X/250-6EG24N9K4E
R901074877 DBAW40BH2N1X/210-6EG24N9K4E   R901096319 DBAW40BH2N1X/315-6EG24N9K4E
R901019383 DBAWR30BH2N1X/200-6EG24N9K4VE R901073014 DBAWR40BH2N1X/180-6EG24N9K4E

力士乐DBA型泵安全阀块（先导式溢流阀）

R901118172 DBA30F2N1X/230YE              R901126760 DBA30H2N1X/180E
R900772887 DBA30H2N1X/200E               R901249563 DBA30H2N1X/315YE
R901105017 DBA30H2N1X/350E               R901169727 DBA40H1N1X/50YE
R901143313 DBA40H1N1X/180E               R901016309 DBA40H2N1X/180E
R901181520 DBA40H2N1X/310YE              R901119209 DBA40H2N1X/315YE
R901110028 DBA40H2N1X/330E               R901238473 DBA40H2N1X/340E
R900776522 DBA40H2N1X/350E               R900787979 DBA40H2N1X/350YE
R901219386 DBAR30H2N1X/180E             
DBA 15 F2-2X/100    R900777241     DBA 15 F2-2X/315    R900940055
DBA 25 F2-2X/200    R900963672     DBA 25 F2-2X/315    R900940056
DBA 25 F2-2X/350    R900955646     DBA 15 H2-2X/100    R900777680 
DBA 15 H2-2X/315    R900750578     DBA 25 H2-2X/200    R900966021 
DBA 25 H2-2X/315    R900965997     DBA 25 H2-2X/350    R900940060 
DBA 30 F2-2X/200    R900916662     DBA 30 F2-2X/315    R900940057 
DBA 30 H2-2X/200    R900940057     DBA 30 H2-2X/315    R900916665