Series 2300 Direct Operated Water Pressure Reducing Valves are designed for dead-end waterservice where the flow is intermittent and changes rapidly, as on domestic watersystem.
系列2300直接操作水减压阀适用于室内水系统流量有间歇性变化和变化迅速的终端水应用场合。
2
Special case for investigation works out the water treatment scheme, adopt the special field compound water treatment preparation and perfect technical servicesystem.
专案制定水处理方案，采用专业的复合水处理制剂及完善的技术服务体系。
3
Notable differences are existed between systemservice and unit service in urban water affairs operative services and type of property it encounters varies.