SAP型泵是单级双吸中开式离心泵

概述
SAP型泵是单级双吸中开式离心泵 ，该型泵在SA型泵的基础上，进行结构优化设计而发展的新系列产品。本系列产品既保持了SA型泵的水力性能好、效率高的特点，又在结构上综合了西德KSB公司和美国IR公司双吸泵的技术作了新的改进，使之更合理、更可靠。
本系列产品供输送不含固体颗粒的清水和物理化学性质类似于水的其余液体，被输送的介质温度为0°C~80°C，适用于工厂、城市、矿山、电站、水利工程等的排水或给水用泵。
参数范围
流量：Q：72—12258m3/h
扬程：H：6.8—143m
允许最大进口压力：6×105Pa
型号表示的意义
        如10SAP－6JA
        10—吸入口径被25除（既吸入口径为250毫米）
        SAP—单级双吸离心泵
        6—比转数被10整除后的圆整数
        J—泵转数改变（保持原来转速时不表示）
        A－泵叶轮外径的改变(最大直径时不表示)
泵旋转方向
  从电机端看为逆时针方向，即吸水口在左、吐出口在右.用户若有更改方向、增加轴伸、改变轴封方式、更换过流部件材等要求,均可与本厂协商解决.
CENERAL
  Type SAP pump belonge to single－stage double－suction split centrifugal kind based on Type SA pump and developed inseries products after its optimum design
In construction,it keeps specialities of Type SA pump in good hydralic property
And high efficency,together with improvement in cotruction of duuble－suction
technology comrehensively absorbed from KSB CO .Germany and IR CO.U.S.A to
Make it more reasonable and reliable
  The series products are used to deliver clear water without solid particles or other liquids similar to clear water physically and chemically with the temperature of0°C¬80°C and suitable for darinage project and feed pump in factory,city,mine,power station ,feld irrig ation and water conservancy
Parameters range:
  Capacity Q:72 – 12258m/h
  Head     H:6.8 -143m
  Permissible maximum inlet pressure:6×10Pa
Description of pump symbol figures:
  For esample 10SAP – 6JA
  10 – The number,obtained the inlet diameter divided by 25(inlet diameter is 250mm)
  SAP – Single stage double suction centrifugal pump
  6 – The number obtained from the specific speed divided by 10
  J – The rotation speed of the pump has been changed (no indication when
  maintaining the original speed)
  A – Outer diameter of impeller has been changed(no indication when maintaining
  The original diameter of impeller)
Rotation direction of pump shaft:
  The rotation of shaft is counterwise looking from motor end.Punp’s inlet is on the leftside and outlet is on the rightside,If the client wants to change the shaft sealing and the materials of the components by which the liguid passes,Our workes would like to achieve the order under favourable discussion
结构说明
本型泵的吸入口与吐出口均在水泵轴心线的下方，与轴线垂直成水平方向。检修时无需拆卸进出口水管及电动机。从传动方向看去。SAP型泵为逆时针方向旋转。（根据用户需要亦可改为顺时针方向旋转）
泵的主要零件有—：泵体、泵盖、叶轮、轴、双吸密封环、轴套等。除轴的材料为优质碳钢外，其余主要零件为铸铁制成。
泵体与泵盖构成叶轮的工作室。在进出水法兰上，制有安装真空表和压力表的管螺孔。进出水法兰的下部，制有放水和管螺孔（可根据客户要求采用不绣钢轴与青叶轮）
经过静平衡校验的叶轮，用轴套和两边的螺母固定在轴上，叶轮的轴向力利用其叶片对称布置、两面进水达到平衡。
泵轴由单列向心球轴承支承，轴承装在轴承体内。安装在泵体两端。
双吸密封环用以减少水泵压水室的水漏回吸水室。
泵通过弹性联轴器由电动机直接传动，必要时亦可用内燃机传动。
轴封为软填料或机械密封。为了防止空气进入泵内和冷却润滑密封腔，在填料之前装有填料环，水泵工作时少量高压水，通过泵盖中开面上的梯形凹槽或水封管流入填料腔或机械密封腔。起水封作用。