NewS Jul 17, 2026 2 min
Genuine WILDEN Diaphragm Pumps & Parts, In Stock at Haquan
As an authorized WILDEN distributor, Haquan stocks genuine diaphragm pumps, spares and repair kits for every model — ready to ship worldwide, fast.
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Newsroom
Sewage Pump News & Engineering Insights
Product launches, practical pump-selection guides and company updates from the Haquan engineering team.
NewS
NewS Jul 16, 2026 3 min
How Does a Sewage Pump Work? Types, Cycle & Maintenance Guide
A plain-language guide to how a sewage pump works — collection to discharge — plus the main pump types and simple maintenance tips from Haquan’s engineers. Sewage pumps do one of the least glamorous b
Read MoreNewS Jul 15, 2026 2 min
WILDEN Diaphragm Pumps Now In Stock at Haquan — Shipping Worldwide
Haquan now stocks WILDEN air-operated diaphragm pumps (P & T series, 1/4″–4″) at factory-direct prices, quality guaranteed and ready to ship worldwide. Anyone who has sourced diaphragm pumps knows the
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Product News Jul 7, 2026 2 min
Haquan Pump Valve Ships Custom ZW Self-Priming Pumps to Portugal
Shanghai Haquan Pump Valve Manufacturing Co., Ltd. has successfully delivered two customized ZW series self-priming sewage pumps to a trading partner in Portugal. This shipment marks another step in t
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Technical Guide Jul 3, 2026 2 min
ZW Self-Priming Sewage Pump – Key Technical Parameters
Parameter Range Flow Rate 5 ~ 800 m³/h Head 12 ~ 60 m Motor Power 1.5 ~ 55 kW Rotational Speed 1450 ~ 2900 r/min Inlet / Outlet Diameter φ25 ~ φ300 mm Self-Priming Height 4.5 ~ 6.0 m Max Solid P
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Technical Guide Jun 27, 2026 2 min
WQ vs WQK: Best Sewage Pump for Basements & Garages | Haquan Pump
Which sewage pump fits underground basements? Haquan compares WQ non-clogging vs WQK cutter pumps for garages and bathrooms to prevent clogs.
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