教育之宗旨何在?使人为完全之人物而已。—— 清·王国维《论教育之宗旨》
PVA22MQ/30迪普马变量叶片泵
迪普马 液压泵 叶片泵 Duplomatic 变量泵 先导叶片泵 液压泵
PVA22MQ/30 PVA22MQ/30 PVA22MQ/30 PVA22MQ/30迪普马变量泵
PVA22MQ/30 PVA22MQ/30 PVA22MQ/30 PVA22MQ/30迪普马变量泵
Duplomatic Oleodinamica S.p.A.
意大利迪普马公司
Hydraulic Pumps
液压泵
Vane Pumps
叶片泵
PVA - 变量叶片泵带先导式调节器
PVA - VARIABLE DISPLACEMENT VANE PUMPS SERIES 30
PVA - 变量叶片泵,序列号 30
OPERATING PRINCIPLE
- The PVA pumps are variable displacement vane pumps with piloted type hydraulic pressure compensator.
- They permit instantaneous adjustment of the flow rate according to the circuit requirements.The consequence is that energy consumption is reduced and adequate in every cycle phase.
- The pumping group is complete with hydrostatic axial compensation distribution plates that improve the volumetric efficiency and reduce wear of the components.
- The pressure compensator operates with the principle of keeping the cam ring of the pumping group in the eccentric position with use of a piston controlled hydraulically by a pressure pilot stage.
- When the delivery pressure equals the pressure corresponding to the pilot stage setting, the cam ring is moved toward the center adjusting the flow rate to the plant requirements.
- In zero flow demand conditions, the pump delivers oil only to compensate any possible bleedings and pilotings, keeping the circuit pressure constant.
- The compensator response times are very restrained and such as to allow elimination of the pressure relief valve.
- Also available are the versions with maximum flow adjustment PVA***Q and with the device for selection of two independent pressure values with solenoid valve PVA***M
迪普马液压泵 变量泵
PVA 变量叶片泵,序列号 30
迪普马 液压泵 叶片泵 Duplomatic 变量泵 先导叶片泵 液压泵
PVA22MQ/30 PVA22MQ/30 PVA22MQ/30 PVA22MQ/30迪普马变量泵
PVA22MQ/30 PVA22MQ/30 PVA22MQ/30 PVA22MQ/30迪普马变量泵
供应商信息:上海心雨机电设备有限公司
Attn:闫菲
Tel:
Fax:
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德行之实事,皆在六艺,艺失则德行俱失。—— 清·李塨《大学辨业》
PVA22MQ/30迪普马变量叶片泵
迪普马 液压泵 叶片泵 Duplomatic 变量泵 先导叶片泵 液压泵 油泵 先导式调节器
Duplomatic Oleodinamica S.p.A.
意大利迪普马公司
Hydraulic Pumps
液压泵
Vane Pumps
叶片泵
PVA - 变量叶片泵带先导式调节器
PVA - VARIABLE DISPLACEMENT VANE PUMPS SERIES 30
PVA - 变量叶片泵,序列号 30
工作原理
- PVA泵是一种带先导式带压力补偿的变量叶片泵。
- 它允许根据系统要求自动调节其流量。该泵可在满足工作要求的同时降低能耗。
- 该泵采用具有静压轴向补偿功能的配油盘,能提高容积效率和减少部件磨损。
- 压力补偿工作原理是:在先导压力作用下,被拉柱塞移动,从而使油泵定子在某一位置平衡。
- 当输出压力与先导压力相等时,定子向中心移动,并使输出流量满足工作要求。
- 在输出流量为零的情况下,油泵的输出为补偿泄漏和以保持先导作用,而系统压力保持不变。
- 补偿器的响应时间非常短,不会产生压力超调。
- 根据需要可提供zui大变量可调型油泵PVA***Q和具有两路压力选择,带电磁阀的变量泵PVA***M。
变量叶片泵带先导式调节器
PVA 变量叶片泵,序列号 30
技术参数(在温度为50°C,粘度为36 cSt下测得)
- 泵规格:22, 28, 35, 45, 56, 72, 90, 115, 145
- 排量:16, 20, 25, 31.5, 40, 50, 63, 80, 100 cm3/rev
- 公称流量:23.2, 29, 36.2, 45.6, 58, 72.5, 91.3, 116, 145 l/min (1450 rpm时)
- zui大工作压力:160 / 150 bar
- 压力调节范围:30 - 160 / 30 - 150 bar
- 泄油口zui大压力:1 bar
- 转速范围:800 - 1800 rpm
- 旋转方向:顺时针(从轴端观察)
- 轴端负载:不允许径向和轴向负载
- 轴端zui大允许扭矩:197 / 400 / 740 Nm
- 质量:13 / 33 / 45 kg
- 环境温度范围:-20 / +50 °C
- 油液温度范围:-10 / +70 °C
- 油液粘度范围:见2.2节
- 粘度范围:25 - 50 cSt
- 油液清洁度:见2.3节
DUPLOMATIC迪普马液压泵
变量叶片泵带先导式调节器
PVA 变量叶片泵,序列号 30
订货型号
"PVA***/30/*/*"
"PVA"--变量叶片泵
"*"--排量:
22 = 23.2 l/min
28 = 29.0 l/min
35 = 36.2 l/min
45 = 45.6 l/min
56 = 58.0 l/min
72 = 72.5 l/min
90 = 91.3 l/min
115 = 116 l/min
145 = 145 l/min
"*"--M = 带双路压力选择部件(不带时省略)
"*"--Q = 带流量调节装置(不带时省略)
"30"--系列号(系列号30-39的外形和安装尺寸保持不变)
"*"--密封:
使用矿物油时省略
V = 用特种油时用氟橡胶
"*"--油泵位置(对多联泵):
A = 第一级泵
I = 第二级泵
P = 第三级泵
单泵时省略
DUPLOMATIC迪普马液压泵
变量叶片泵带先导式调节器
PVA 变量叶片泵,序列号 30
型号列举
PVA22/30
PVA28/30
PVA35/30
PVA45/30
PVA56/30
PVA72/30
PVA90/30
PVA115/30
PVA145/30