PE pumps 

PE is the acronym for polyethylene, a semi-crystalline thermoplastic polymer belonging to the polyolefin group. Polyethylene is manufactured from ethylene gas by polymerization. At room temperature polypropylene shows a visco-elastic behaviour.

PP is defined by a density of 0.87 g/cm³ to 0.94 g/cm³ and is thus a low-density thermoplastic featuring excellent chemical resistance.

PE is classified into the following grades: 

- PE-HD or HDPE with weakly branched polymer chains and high density

- PE-LD or LDPE with highly branched polymer chains and low density

- PE-LLDE: or LLDPE with short branches of the polymer molecule and a lower density than linear polyethylene.

- PE-HMW (high-molecular polyethylene) with longer chains than the above grades. 

- PE-UHMW (ultra-high-molecular-weight polyethylene) with a mean molar mass of up to  6000Kg/mol.

Ultra-high-molecular-weight polyethylene (PE-UHMW) in particular exhibits extremely high wear resistance, outperforming many steels and metals. PE pumps are therefore the solution of choice when it comes to pumping solids-laden fluids. 

These properties combined with close to 50 years’ experience with engineering plastics at Munsch translate into excellent resistance to aggressive and, in particular, abrasive media of our PP pumps and hence, into a broad application range.

PP has the following properties:

-          moderate general strength

-          good toughness

-          good impact strength

-          suitable for service temperatures between – 50°C and 80°C 

-          poor weldability 

-          good corrosion resistance

-          satisfactory stress cracking resistance

-          good to very good wear resistance

-          good cavitation behaviour & 

-          waxy white in colour

As against PP, PE has a higher ductility which makes it significantly more resistant to stress cracking.

PE offers good resistance to most low- and medium-strength acids and caustics.  Moreover, it is resistant to salt solutions and lends itself as a pump material for many polar organic liquids.

Pumps fabricated from PE are excellently suited for pumping tasks in pollution control applications, evaporation and regeneration units, flue gas and exhaust air cleaning as well as waste water treatment.  

When provided with UV protection, PE pumps also lend themselves to outdoor installation.

When equipped with frequency inverter-controlled motors allowing flexible operation even at reduced speeds, these pumps are also suitable for pumping fluids with extreme wear-inducing solids loads. 

Vertical submerged pumps are also available in this material. The submerged pumps are available for both wet end and dry end arrangement.  

The pumps are also suited for use in explosive atmospheres (ATEX) and meet the requirements of EU Directive 94/9/EC.

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Munsch is a global acting company. If you require a pump sales contact in your area or you have any questions regarding to our products please find your closest contact.

 

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Welding Technology

Among the production of pumps, Munsch Company also produces plastic welders of the latest generation.
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