Magnetic-driven Side Channel Centrifugal Pump
		SEMA-S (for extremely low NPSH value)
		SEMA-L (in accordance to DIN 24254 )
		Pump is 'magnetic-driven'. The permanent magnetic coupling of the SEMA guarantees that the whole pumping system is completely sealed and serves to provide contact-free torque transmission between pump and drive
		Maintenance-free
		Self-priming
		Capable of handling fluids up to 50% gas or vapour content
		Pump is insensitive to cavitation caused by variable vapour pressure.
		Extremely low NPSH values and low pressure fluctuation
		Modular design - Parts interchangeability.
		Applications & installations where 'zero-leakage' is of utmost importance, especially when handling dangerous substances which must not have any contact with the environment
		Chemical & petrochemical industry
		Liquid gas installations
		Process engineering
		Refrigerating installations
		Electroplating
		Distillate tank installations
		Vacuum technology
		Extraction plants
	Handling environmentally polluting substances such as:
		Corrosive & toxic substances
		Acids
		Alkaline solutions
		Hydrocarbons
		Solvents
		Liquid gases
		Refrigerants, CO2, Ammonia & other CFC substitutes
		Casing
		Suction & discharge casings as well as suction & discharge stage casings have a transverse spacing. The sealing of the casings is by means of stage gaskets.
		Impellers
		Open, star-shaped impellers with axial thrust compensation through balancing holes. For SEMA-S models, an additional radial centrifugal pump impeller for achieving low NPSH values.
		Shaft
		Special shaft resistant to bending, that provide trouble-free run at all load phases.
		Bearing
		Life-greased ball bearings to support the outer magnet system, and absorbing all radial load generated.
		Separation chamber
		It separates the product space from the atmosphere. Through it the torque is transmitted throughout by means of the action of the magnetic force.
		Inner rotor
		The magnets are fixed firmly to the support and as a protection against chemical attack are hermetically sealed.
		Outer rotor
		The number of magnetic pieces varies according to the force to be transmitted. An economical use of the magnetic volume is guaranteed.
		The Magnets
		Are of high grade samarium-cobalt (SmCo)
		Slide bearings
		It is formed from a combination of axial & radial bearings. It is hydrodynamically relieved and medium lubricated. For this reason it is provided with oiling grooves.
		Max. capacity
		20 m3/hr (50Hz)
		Max. head
		250 m (50Hz)
		Speed
		1450 rpm (50Hz)/ 1750 (60Hz)
		Temperature range
		-40oC to 200 oC
		Max viscosity handled
		>0.3 m.Pas up to 200 m.Pas
		Suction head
		7 m
Static breaking moment at room temperature: up to 168 N-m