PVDF Lined Sealless Magnetic Drive Pump for Hot Sulfuric Acid

Electroplating and pickling lines punish pumps twice: the acid attacks the wetted parts and the surrounding vapour attacks the motor. This MPH-30 answers both with a PVDF lined pump chamber, a carbon fibre reinforced PP outer casing and a sealless magnetic coupling that removes the mechanical seal completely. PVDF keeps its mechanical strength at 110 C, so the pump stays in service on hot sulfuric acid, chromic acid and mixed acid etch baths where PP and ordinary engineering plastics creep and crack. With 5.5 kW driving 260-330 L/min at up to 18 m head, one unit covers a full plating tank circulation loop or a filter press feed duty.

Technical Specification

Key Features

• PVDF lining gives continuous service up to 110 C in sulfuric, chromic and mixed acids
• Sealless magnetic drive removes the mechanical seal and the leak path entirely
• Carbon fibre reinforced PP casing holds shape under thermal cycling
• Silicon carbide bearings run quietly with a thin liquid film instead of grease
• Flanged DN40 / DN50 ports match standard plating line piping without adaptors
• Motor terminal box sealed against acid vapour and humidity

Typical Applications

• Electroplating and anodising tank circulation
• Sulfuric acid pickling and etching lines
• Filter press feed on spent acid
• PCB and electronics wet process chemical delivery
• Fume scrubber circulation on acid vapour

Frequently Asked Questions

Packaging and Delivery

Each pump is wrapped in anti-rust film, fixed on a fumigated plywood pallet with steel straps and shipped in a seaworthy wooden case. Spare parts kit, operation manual and nameplate drawing are packed in the same case. We ship from Ningbo or Shanghai port and support air freight for urgent sample orders.

Send your duty point (flow, head, liquid and temperature) and we will confirm the exact model, motor voltage and spare parts list within one working day.

Product Real Shots

Every unit is photographed on our assembly line before packing, so what you see is exactly what ships: the lined pump chamber, the magnetic coupling housing, the motor and the base plate are all shown as assembled and tested.

White Background Product Views

Studio renders of the same pump on a clean white background make it easy to compare port positions, flange sizes and overall dimensions with your existing pipework before you order.