Pumps for acids and alkalis

MMS-PP    Polypropylene Pump Tube with Mechanical Seal
MSL-PP    Polypropylene Seal-less Pump Tube

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The robust Lutz pump tube with mechanical seal or sealless is suitable for pumping clean and dirty, thin-bodied and slightly viscous, aggressive and non-aggressive liquids out of drums and small or large containers. The pump tube is non-lubricated, thus preventing contamination of the liquids pumped.

Structure and function (MMS-PP)

Lutz pump tubes are immersible centrifugal pumps. The drive shaft of this pump tube is sealed by a single-acting mechanical seal (MS). The patented   mechanical seal is integral with the lower bearing housing. This position guarantees the best operating conditions and ensures the long service life of the mechanical seal. The pump must not be allowed to run dry.

Structure and function (MSL-PP)

Lutz pump tubes are immersible centrifugal pumps. The drive shaft of this pump tube is not sealed. The bearing housing unit above the impeller is designed to prevent pumped liquid from rising between the shaft and the inner tube. This device guides the liquid which penetrates between the drive shaft and the shaft bearing back into the container being drained.

Length:

MMS/MSL: 27", 39", 47"
MSL only: 55", 59", 63", 67", 78"
Special length on request.

Type	MMS-PP (Mechanical Seal)	MSL-PP (Sealless)
Wetted parts
Housing:	Polypropylene	Polypropylene
Mechanical seal:	Carbon, SiC, Viton®, HC-4 (2.4610)	None
Bearings:	ETFE/PTFE	ETFE/PTFE
Drive shaft:	Stainless Steel (316) HC-4 (2.4610) on request	HC-4 (2.4610) Stainless Steel (316)
Examples of liquids:	Acids, Alkalis, Vegetable Oils, Liquids, Phosphates, Sulphates, Nitrates, Chlorates, Paints and Inks, Water,	Acids, Alkalis, Galvanic Fluids, Phosphates, Sulphates, Nitrates, Chlorates, Paints and Inks, Water, Oils,
Type of impeller:	axial-flow rotor (R) or radial-flow impeller (L) Material: PP	axial-flow rotor (R) or radial-flow impeller (L) Material: PP

Motors available: