Shanghai Haquan Pump Valve Manufacturing Co., Ltd. is a professional sewage pump manufacturer and an authorized dealer of genuine Wilden AODD diaphragm pumps and spare parts — supplying submersible, cutter and self-priming sewage pumps, and genuine Wilden pumps for chemical, food & beverage, pharmaceutical, mining and industrial fluid transfer worldwide.
A decade of engineering discipline, in-house manufacturing and export experience behind every pump we ship.
Casting, machining, winding and assembly under one roof in Shanghai — full control over quality and lead time, with every pump hydraulically tested before dispatch.
Tell us your duty point and medium; our engineers size the hydraulics, seal and materials to your process rather than selling you a catalogue compromise.
Complete export documentation, seaworthy packing and multilingual support — trusted by industrial and municipal buyers worldwide.
We manufacture and supply a full sewage-focused pump range — stainless-steel sewage pumps, ZW and ZWL self-priming pumps, YW submersible sewage pumps, the QBY air-operated diaphragm series, irrigation & drainage mobile pump trucks, GNWQ and WQK cutter submersible pumps, IHG/IHW/IRG/IRW pipeline pumps, metering pumps, high-head sewage pumps, QDX submersible pumps and QD oil-filled submersible pumps. As an authorized dealer, we also supply genuine Wilden AODD diaphragm pumps and spare parts.
GNWQ Cutter Submersible Sewage PumpGNWQ non-clog cutting sewage pump with 3Cr13 alloy cutter impeller and optional 316L stainless steel body. Built for high-solids and corrosive wastewater applications
ZWL Direct-Coupled Self-Priming Sewage PumpMuddy, gritty, full of debris — construction water wrecks ordinary pumps. See why a ZWL self-priming pump handles site dewatering and keeps the job moving.
GNWQ Cutter Submersible Sewage PumpSeptic tanks are the classic clogging trap: everything that goes down a drain ends up there, including wipes, hair and cloth that wrap an ordinary pump solid. A GNWQ cutter pump shreds all of it on in…
QBY Air-Operated Diaphragm Pump (AODD)Underground and around the mill, the QBY earns its keep on the fluids other pumps choke on: mine water thick with slag, mud and grit. It passes solids to 10 mm, wears slowly thanks to its clearance-fr…
Genuine Wilden AODD Diaphragm Pumps & Spare PartsThe WILDEN T15 AODD pump is the largest model in the T series with 4-inch ports and maximum flow of 1040 L/min. It is designed for high-volume industrial fluid transfer in the most demanding applicati…
Genuine Wilden AODD Diaphragm Pumps & Spare PartsThe WILDEN P15 AODD pump is the largest model in the P series with a 4-inch port size. It delivers the maximum flow rate of 1040 L/min and handles solids up to 19 mm, making it ideal for high-volume f…
Genuine Wilden AODD Diaphragm Pumps & Spare PartsWILDEN provides professional sanitary-grade diaphragm pump models that meet FDA and 3A sanitary standards, which are widely used in food, pharmaceutical and cosmetic industries. The equipment adopts f…
Mobile Diesel Engine Drainage Pump TruckMobile pump trucks can be classified into multiple types according to pump type, structural form and functional integration, covering all emergency drainage scenarios from small temporary water delive…
YW Liquid-Submerged Sewage PumpMany purchasers confuse YW liquid-submerged sewage pump and fully submersible sewage pump (QW/WQ series), there are essential structural and application differences:（1）Structural LayoutYW pump: Vertic…
“Haquan sized a self-priming sewage pump for a difficult lifting station and it has run without a single blockage for two years. Their engineering support before the sale was the difference.”
“Haquan's QBY air-operated diaphragm pumps have handled our aggressive chemical transfer without a hiccup — reliable metering, easy maintenance and responsive engineering support made them an easy standardisation choice.”
“The stainless submersible pumps have survived our brine application where coated cast iron used to fail every season. Documentation for customs was complete and correct.”
Send us your duty point and application — our engineers will recommend the right pump and return a quotation within 24 hours.
