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MUNSCH HORIZONTAL MECHANICAL SEAL PUMPS
NP Series - Non-Metallic Standardised Chemical Pump with mechanical seal

Type NP standardised chemical pumps are the solution of choice whenever it comes to pumping acids, alkalis or chemically contaminated fluids in the presence or absence of solids. Typical applications include the chemical and metal finishing industries, steel and stainless steel pickling lines, evaporation and regeneration units, flue gas scrubbing downstream of waste incinerators as well as exhaust air cleaning and scrubber effluent treatment.

Materials of construction: Horizontal centrifugal pump with volute casing and singleentry, single-stage radial impeller. Pump casing and impeller in PP, PE-UHMW or PVDF. Secondary seals in EPDM, FPM or FFKM.

Casing and fitting dimensions to EN 22858/ISO 2858, complemented by size 40-25-160 and 250-200-400 pumps.

Key Munsch NP Series features:
  • Robust metal armour accommodates all allowable system pressures and piping loads.
  • Sturdy, single-piece plastic casing and solid casing cover provide diffusion-tight containment, eliminating secondary sealing problems; superior mechanical wear resistance for maximum operating reliability in chemically aggressive and abrasive environments.
  • Impeller available in closed and semi-open designs.
  • Optimum hydraulic design using the latest numerical methods ensures: good suction behaviour due to low NPSH requirements, minimum mechanical vibration of components, long service lives of antifriction bearings and mechanical seal, minimized running noise.
  • Impeller is keyed to the shaft and is therefore bi-directional and unaffected by inadvertent reverse rotation.
  • Casing drain or connection to cleaning circuit (option).
  • Optimum seal chamber geometry without dead flow pockets ensures continuous liquid exchange.
  • Excellent shaft rigidity makes for long service life of the mechanical seal.

MUNSCH NP SERIES

Horizontal centrifugal pump with volute casing and single-entry, single-stage radial Impeller. Casing and fitting dimensions to EN 22858/ISO 2858, complemented by size 40-25-125, 250-200-400 and 300-250-400 pumps.

Pump capacity up to 1200 m3/h
Total differential head up to 100 m
Operating temperature [t] -20C to +110C
Operating pressure [p] up to 10 bar
Pressure flange connection DN 25 to DN 250
Motor rating [P] up to 200 kW


MUNSCH NP-B SERIES

Horizontal, end suction, single-stage, centrifugal pump with volute casing and radial Impeller. Casing and fitting dimensions to EN 22858/ ISO 2858, complemented by Size 40-25-125 and 40-25-160 pumps.

Pump capacity up to 110 m3/h
Total differential head up to 70 m
Operating temperature [t] -20C to +110C
Operating pressure [p] up to 10 bar
Pressure flange connection DN 25 to DN 65
Motor sizes up to IEC size 132


MUNSCH NPC SERIES

NPC standardized pump with dimensions to EN 22858/ ISO 2858/ISO 5199 complemented by size 40-25-125 and 40-25-160 pumps.

Pump capacity up to 150 m3/h
Total differential head up to 80 m
Operating temperature [t] -20C to +150C
Operating pressure [p] up to 16 bar
Pressure flange connection DN 25 to DN 65
Motor rating [P] up to 30 kW


MUNSCH NPC-B SERIES

NPC-B close-coupled pump with casing dimensions to EN 22858/ ISO 2858, complemented by size 40-25-125 and 40-25-160 pumps.

Pump capacity up to 150 m3/h
Total differential head up to 80 m
Operating temperature [t] -20C to +150C
Operating pressure [p] up to 16 bar
Pressure flange connection DN 25 to DN 65
Motor rating [P] up to 18,5 kW


MUNSCH NPC MAMMUT SERIES

Horizontal centrifugal pump with volute casing and single-entry, single-stage radial impeller. Meets the technical requirements for Class II centrifugal pumps as per EN ISO 5199.

Pump capacity up to 2000 m3/h
Total differential head up to 70 m
Operating temperature [t] -20C to +100 C
Solid content up to 10 Vol.%
Grain size up to 15 mm
Motor rating [P] up to 450 kW