STO
多级离心电泵Multi-stage Centrifugal Electric Pumps

用途Field of Application
本系列电泵适用于加压系统,例如雨水灌溉、清洗设备、高压灭菌设备以及绝大多数供水系统。本泵型的低能耗和高效率使得其具有很大的灵活性和可靠性。
This series of motor-driven pumps is fit for use in pressurization units, for rain irrigation, washing equipment, supply of autoclaves and water supplies in general. Their low energy consumption and high efficiency make them versatile and reliable.

特征Features
 泵体：G20铸铁
G20 cast iron pumping/pressing pump casing
 内衬：AISI 304不锈钢
AISI 304 stainless steel liner
 叶轮：AISI 304不锈钢
AISI 304 stainless steel impeller
 导流器和中间隔套：化合聚合物
Techno-polymer diffuser casing, diffusers and intermediate plate
 机械密封：石墨-陶瓷
Carbon/Ceramic mechanical seal
 轴：不锈钢
Stainless steel shaft
 泵体能承受最大工作压力：1.2HP以下8bar; 1.2HP~3HP 10bar; 4HP~6.5HP 18bar
Max pressure allowed in pump casing: 8 bar up to 1.2 HP; 10 bar from 1.2 to 3 HP; 18 bar from 4 to 6.5 HP

性能参数Performance Data
 流量：最高10 m3/h
Flow rate: up to 10m3/h
 扬程：最高80米
Heads: up to 80m
 介质：不带腐蚀性颗粒并对泵体无害的清洁液体
Pumped fluid: clean, free from suspended abrasive particles, non aggressive but similar to water
 液体温度：最高45℃
Temperature of pumped fluid: up to 45℃
 环境温度：40℃
Room temperature: 40℃
 转速：2900r/min
Rotation speed: 2900r/min

电机Motor
本泵型使用电机采用带外部通风装置的闭式异步电机。
The control motors are asynchronous, squirrel cage-type, closed, with external ventilation.
 单相电机装有预置热保护装置及固定联络电容；三相电机不带热保护装置，建议用户自行安装。
In-built thermo-amperometric protection and capacitor are always on, for single-phase models.The motor protection for three-phase models must be installed by the customer。Equipment compliant with current standards should be used.
 绝缘等级：F
Class of insulation: F – service: S1
 防护等级：IP44 (根据用户要求可增加至IP55)
Degree of protection: IP44 (IP55 available on request)
 轴承：动态平衡大转子轴承
Dynamically balanced rotor mounted on oversize ball bearings
 标准电压：单相：230V-50Hz
              双相：功率≤4KW ，230V/40-50Hz; 功率≥5.5KW，400V/690-50Hz
Standard voltages: single-phase: Volt 230-50Hz
                  three-phase: Volt 230/40-50Hz for power≤4KW;
Volt 400/690-50Hz for power≥5.5KW;

安装Installation
本泵应水平位置安装。
The pump is to be installed in horizontal position.

按客户要求，可提供特殊性能Special Enclosures Available on Request
 特殊电压/频率
Different voltages/ frequencies
 特殊机械密封
Special mechanical seal