3.排量、流量
排量是指泵（或马达）每转一周，由密封容腔几何尺寸变化而得的排出（或输入）液体的体积，常用单位是ml/r（毫升/转）。排量可以通过调节发生变化的成为变量泵（或变量马达），排量不能变化的成为定量泵（或定量马达）。
实际流量是指泵（或马达）工作时出口处（或进口处）的流量。由于泵本身存在内泄漏，其实际流量小于理论流量。由于马达本身也存在内泄漏，要实现指定转速，为补偿泄漏量，其输入实际流量必须大于理论流量。
4.效率
容积效率，对液压泵是指其实际流量与理论流量的比值。对液压马达是指其理论流量与实际流量的比值。
机械效率，对液压泵是指其理论转矩与实际输入转矩的比值。对液压马达其实际输出的转矩为理论转矩克服摩擦力后的转矩，因此其机械效率为实际输出转矩与理论转矩的比值。
总效率是指泵（或马达）的输出功率与输入功率的比值。总效率等于容积效率与机械效率的乘积。
销售进口油研YUKEN液压阀 液压泵全系列
油研YUKEN叶片泵 原装，质量保证，油研YUKEN江苏办事处 油研YUKEN
（067）PV2R1-6-F-RAA-SP-4250 PV2R1-8-F-RAA-SP-4250
（066）PV2R1-10-F-RAA-SP-4250 PV2R1-12-F-RAA-SP-4250
（068）PV2R1-17-F-RAA-SP-4250 PV2R1-14-F-RAA-SP-4250
（069）PV2R1-19-F-RAA-SP-4250 PV2R1-23-F-RAA-SP-4250
（070）PV2R1-25-F-RAA-SP-4250 PV2R1-31-F-RAA-SP-4250
（071）PV2R1-6-F-RAA-SP-4251 PV2R1-12-F-RAA-SP-4251
（072）PV2R1-17-F-RAA-SP-4251 PV2R1-19-F-RAA-SP-4251
（073）PV2R1-14-F-RAA-SP-4251 PV2R1-23-F-RAA-SP-4251
（074）PV2R1-25-F-RAA-SP-4251 PV2R1-8-F-RAA-SP-4251
（075）PV2R1-10-F-RAA-SP-4251 PV2R1-31-F-RAA-SP-4251
PV2R2-53-F-RAA-41 PV2R2-59-F-RAA-41
PV2R2-65-F-RAA-41 PV2R2-75-F-RAA-41
PV2R2-26-F-RAA-41 PV2R2-26-F-RAB-41
PV2R2-26-F-RAL-41 PV2R2-26-F-RAR-41
PV2R2-26-L-RAA-41 PV2R2-26-L-RAB-41
PV2R2-26-L-RAL-41 PV2R2-26-L-RAR-41
PV2R2-33-F-RAA-41 PV2R2-33-F-RAB-41
PV2R2-33-F-RAR-41 PV2R2-33-F-RAL-41
PV2R2-33-L-RAA-41 PV2R2-33-L-RAB-41
PV2R2-33-L-RAL-41 PV2R2-33-L-RAR-41
PV2R2-41-F-RAA-41 PV2R2-41-F-RAB-41
PV2R2-41-F-RAL-41 PV2R2-41-F-RAR-41
PV2R2-41-L-RAA-41 PV2R2-41-L-RAB-41
PV2R2-41-L-RAL-41 PV2R2-41-L-RAR-41
台湾EALY弋力叶片泵 台湾EALY弋力办事处
台湾EALY弋力总经销 台湾EALY弋力代理
PV2R1-6-F-RAA PV2R1-8-F-RAA,
PV2R1-10-F-RAA PV2R1-12-F-RAA,
PV2R1-14-F-RAA PV2R1-17-F-RAA,
PV2R1-19-F-RAA PV2R1-23-F-RAA,
PV2R1-25-F-RAA PV2R1-31-F-RAA,
PV2R1-6-F-LAA PV2R1-8-F-LAA,
PV2R1-10-F-LAA PV2R1-12-F-LAA,
PV2R1-14-F-LAA PV2R1-17-F-LAA,
PV2R1-19-F-LAA PV2R1-23-F-LAA,
PV2R1-25-F-LAA PV2R1-31-F-LAA,
PV2R1-6-L-RAA PV2R1-8-L-RAA,
PV2R1-10-L-RAA PV2R1-12-L-RAA,
PV2R1-14-L-RAA PV2R1-17-L-RAA,
PV2R1-19-L-RAA PV2R1-23-L-RAA,
PV2R1-25-L-RAA PV2R1-31-L-RAA,
PV2R1-6-L-LAA PV2R1-8-L-LAA,
PV2R1-10-L-LAA PV2R1-12-L-LAA,
PV2R1-14-L-LAA PV2R1-17-L-LAA,
PV2R1-19-L-LAA PV2R1-23-L-LAA,
PV2R1-25-L-LAA PV2R1-31-L-LAA.
高压定量叶片泵PV2R1-10-F-RAA,
PV2R1-12-F-RAA,PV2R1-14-F-RAA,
高压定量叶片泵PV2R2-26,PV2R2-33,
叶片泵PV2R2-41 叶片泵PV2R2-47 叶片泵PV2R2-53 叶片泵PV2R2-59
叶片泵PV2R2-65 叶片泵PV2R2-75 叶片泵PV2R2-26-F-RAA
PV2R2-33-F-RAA PV2R2-41-F-RAA
PV2R2-47-F-RAA PV2R2-53-F-RAA,
PV2R2-59-F-RAA PV2R2-65-F-RAA,
PV2R2-75-F-RAA PV2R2-26-F-LAA,
PV2R2-33-F-LAA PV2R2-41-F-LAA,
PV2R2-47-F-LAA PV2R2-53-F-LAA,
PV2R2-59-F-LAA PV2R2-65-F-LAA,
PV2R2-75-F-LAA PV2R2-26-L-RAA,
PV2R2-33-L-RAA PV2R2-41-L-RAA,
PV2R2-47-L-RAA PV2R2-53-L-RAA,
PV2R2-59-L-RAA PV2R2-65-L-RAA,
PV2R2-75-L-RAA PV2R2-26-L-LAA,
PV2R2-33-L-LAA PV2R2-41-L-LAA,
PV2R2-47-L-LAA PV2R2-53-L-LAA,
PV2R2-59-L-LAA PV2R2-65-L-LAA.
PV2R2-75-L-LAA
高压定量叶片泵PV2R3-52 PV2R3-60,
PV2R3-66 PV2R3-85 PV2R3-76 PV2R3-94 PV2R3-116
PV2R3-125 PV2R3-136 PV2R3-153
PV2R3-52-F-RAA-31 PV2R3-60-F-RAA-31
PV2R3-66-F-RAA-31 PV2R3-85-F-RAA-31
PV2R3-76-F-RAA-31 PV2R3-94-F-RAA-31
PV2R3-116-F-RAA-31 PV2R3-125-F-RAA-31
PV2R3-136-F-RAA-31 PV2R3-153-F-RAA-31
PV2R3-52-L-RAA-31 PV2R3-60-L-RAA-31
PV2R3-66-L-RAA-31 PV2R3-85-L-RAA-31
PV2R3-76-L-RAA-31 PV2R3-94-L-RAA-31
PV2R3-116-L-RAA-31 PV2R3-125-L-RAA-31
PV2R3-136-L-RAA-31 PV2R3-153-L-RAA-31