它的作用原理和單作用葉片泵相似，不同之處只在于定子表面是由兩段長半徑圓弧、兩段短半徑圓弧和四段過渡曲線八個部分組成，且定子和轉子是同心的。在圖示轉子順時針方向旋轉的情況下，密封工作腔的容積在左上角和右下角處逐漸增大，為吸油區，在左下角和右上角處逐漸減小，為壓油區；吸油區和壓油區之間有一段封油區把它們隔開。這種泵的轉子每轉一轉，每個密封工作腔完成吸油和壓油動作各兩次，所以稱為雙作用葉片泵。泵的兩個吸油區和兩個壓油區是徑向對稱的，作用在轉子上的液壓力徑向平衡，所以又稱為平衡式葉片泵。 

雙作用葉片泵的瞬時流量是脈動的，當葉片數為4的倍數時脈動率小。為此，雙作用葉片泵的葉片數一般都取12或16。

R961002468 WELLE PVV/PVQ54-1X/J+LAGER

R900931548 PVV4-1X/082RA15DMC

R900931256 PVV2-1X/068RA15UVB

R900931138 PVV2-1X/040RA15UMB

R900931136 PVV4-1X/082RA15UMC

R900930907 PVV4-1X/098RA15UMC

R900929543 PVV1-1X/046RA15DMB

R900929542 PVV4-1X/122RA15DMC

R900929461 PVV2-1X/045RA15UMB

R900929349 PVV5-1X/193RA15DMC

R900928961 PVV4-1X/122RA15UMC

R900928955 PVV2-1X/055RA15UMB

R900928947 PVV1-1X/046RA15UMB

R900928946 PVV1-1X/040RA15UMB

R900928769 PVV5-1X/193RA15UMC

R900928302 PVV5-1X/193RB15DMC

R900928301 PVV5-1X/162RB15DMC

R900928297 PVV1-1X/040RA15DMB

R900928296 PVV1-1X/027RA15DMB

R900928294 PVV2-1X/068RB15DMB

R900926823 PVV2-1X/068RA15UMB

R900888267 KOMBITEIL V7-1X/16/25 + PVV1/2-1X/GF3-3X

R900880624 KOMBITEIL V7-1X/100 + PVV1/2-1X/GF3-3X

R900880623 KOMBITEIL V7-1X/40/63 + PVV1/2-1X/GF3-3X

R900880594 MITNEHMER V7-1X/40/63+PVV1/2 &

R900784502 PVV41-1X/098-046RJ15UUMC

R900782312 SY2DFEE-2X/045-PVV/00782225+00946959

R900782231 SY2DFEE-2X/100-PVV/00782148+00940446

R900782229 SY2DFEE-2X/045-PVV/00782145+00946959

R900778721 PVV41-1X/082-046RJ15UUVC

R900776218 PVV41-1X/122-018RJ15UUMC

R900775887 PVV5-1X/193RA15RVC

R900770813 PVV1-1X/040RJ15UMB

R900770563 ABVPG-PVV21-45-18UU/100L-4-A0/S *

R900765934 PVV54-1X/193-082LA15UUVC

R900761046 PVV5-1X/154RB15DMCK02

R900756147 PVV54-1X/193-122RA15DUMC

R900755931 PVV54-1X/193-122RA15DDMC

R900751573 ABUPG-PVV1- 46U-1X/100L-4-O0/SE SIE

R900750621 ABKAG-40AL9/PVV2-055/112M/017E841A1

R900746610 PVV21-1X/045-046RA15UUMB

R900740058 PVV41-1X/098-027RA15UUMC

R900738502 PVV52-1X/193-068RJ15DDMC

R900737709 PVV42-1X/122-068RA15UUMC

R900729458 PVV1-1X/018RA15UVB

R900728943 PVV4-1X/098RA15UVC

R900725190 PVV54-1X/193-122RB15UUVC

R900717179 PVV1-1X/046RA15UVB

R900716000 PVV41-1X/098-027RB15UUMC

R900714991 ABUPG-PVV5-193U-1X/132M-4-B1/S

R900714990 ABUPG-PVV5-162U-1X/132M-4-B1/S

R900714989 ABUPG-PVV4-122U-1X/132S-4-B0/S

R900714988 ABUPG-PVV4- 98U-1X/112M-4-B0/S

R900714987 ABUPG-PVV4-82U-1X/100L-4-A1/S

R900714986 ABUPG-PVV2- 60U-1X/100L-4-A0/S

R900714985 ABUPG-PVV1- 46U-1X/100L-4-A0/S

R900714984 ABUPG-PVV1- 36U-1X/ 90L-4-A1/S

R900714983 ABUPG-PVV1-27U-1X/90S-4-A0/S

R900714982 ABUPG-PVV1- 18U-1X/ 80 -4-A1/S

R900714979 ABUPG-PVV5-193U-1X/132M-4-B1/SE

R900714978 ABUPG-PVV5-162U-1X/132M-4-B1/SE

R900714977 ABUPG-PVV4-122U-1X/132S-4-B0/SE

R900714976 ABUPG-PVV4- 98U-1X/112M-4-B0/SE

R900714975 ABUPG-PVV4- 82U-1X/100L-4-A1/SE

R900714974 ABUPG-PVV2- 60U-1X/100L-4-A0/SE

R900714973 ABUPG-PVV1- 46U-1X/100L-4-A0/SE

R900714972 ABUPG-PVV1- 36U-1X/ 90L-4-A1/SE

R900714971 ABUPG-PVV1- 27U-1X/ 90S-4-A0/SE

R900714970 ABUPG-PVV1- 18U-1X/ 80 -4-A1/SE

R900711031 ZUBEHOER AB41-20S1X/B35- 80/0-PVV1/M

R900709047 PVV2-1X/068RB15UMB

R900708327 PVV54-1X/154-098LB15UUMC

R900705633 PVV54-1X/162-098RJ15UUMC

R900704435 PVV5-1X/154RJ15DMC

R900704434 PVV5-1X/139RJ15DMC

R900703601 PVV42-1X/082-068RA15DDMC

R900965263 PVV42-1X/122-040RA15UUMC

R900954326 PVV5-1X/139RA15UMC

R900942115 PVV2-1X/040RA15DMB

R900941699 PVV4-1X/098RA15RMC

R900941691 PVV2-1X/068RJ15DMB

R900941572 PVV2-1X/060RA15UMB

R900940633 PVV1-1X/018RA15UMB

R900939702 PVV52-1X/193-055RA15UUMC

R900936954 PVV1-1X/027RA15UMB

R900936760 PVV1-1X/036RA15UMB

R900936491 PVV4-1X/113RA15DMC

R900936297 PVV5-1X/183RA15DMC

R900936294 PVV4-1X/098RA15DMC

R900936292 PVV2-1X/045RA15DMB

R900935891 PVV1-1X/036RA15DMB