Hunan Tongda Automatic Water Supply Equipment Factory XS Split-Type Double-Suction Pump Batch Supply ｜ Changsha · Hunan

Application scenario: Hunan Tongda (Changsha local EPC contractor), supplying water plants, industrial parks, township water supply, and commercial building systems across Hunan. South China has high temperature and humidity, Xiangjiang River flood season contains sediment, groundwater has high hardness causing scaling, and demand fluctuates between residential and industrial peaks. Original S/SAP split pumps had low efficiency, valve throttling caused over 25% energy loss, impellers wore and scaled within 3–5 months, bolts corroded and seized, maintenance required pipeline shutdown, and communication interfaces were incompatible with Tongda control cabinets.


Solution content: M&W ENERGY SAVING batch supply XS split-type double-suction pumps + DG multistage pumps: XS500/600 main water plant pumps (2200–4800m³/h / 24–65m / ≥87%, 6kV/10kV, 304 stainless steel impellers), XS300/350/400 industrial/township pumps (800–3200m³/h / 30–70m, 2 units with 1 standby, 380V/6kV optional), XS150/200 HVAC circulation pumps. 304 stainless wetted parts, ZG20Mn pump body epoxy zinc-rich + humid-resistant coating, all 304 stainless fasteners, silicon carbide mechanical seal, 220V electric tracing. Quick-disassembly structure reduces maintenance time by 70%, standardized sensor interfaces connect directly to Tongda VFD cabinets, compatible with existing pump bases.


Project results: energy saving rate 23%–28%, batch standardized production improves delivery efficiency; overhaul cycle extended from 3–5 months to over 12 months, maintenance cost reduced by 65%; modular production shortens manufacturing cycle. Changsha base localized supply, replicable to similar EPC manufacturers in Hubei and Jiangxi.

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