Multitech 1777.8/7-10 G3 operating instructions Description, product, accessories, F Fx, Multitec

								Multitec
4	Description	of	the	product	and	4.2	Designation	A 32 / 8E - 2.1 12 . 65 (SP)
	accessories						Multitec
						Type series
4.1	Technical specification					Installation type / pump version
						Discharge nozzle DN
Multistage centrifugal pumps in ring-section design with suction						No. of stages / impeller combination
impeller for low NPSH value (exception: MTC 32).						Hydraulic system
						Material variant
			Horizontal design, baseplate			Shaft seal code
			mounted			Code for special variants (optional)
A			1 casing entry, drive end
			1 rolling element bearing, drive end			4.3	Design details
			1 plain bearing, suction end
			axial suction nozzle			Pump type
			for the entire H/Q range			High-pressure centrifugal pump in long-coupled (baseplate
			same as installation type A, but			mounted) or close-coupled design, horizontal			or vertical
						version, axial or radial suction nozzle. Radial suction and
			radial suction nozzle
B						discharge nozzles can be turned by 90￿.
						Bearings:
						Radial bearings are silicon carbide plain bearings (not on
						versions C and D), self-aligning. Plain bearings lubricated by
			Horizontal design, baseplate			fluid handled. Fixed bearings are rolling element bearings,
			mounted,			grease- or oil-lubricated.
C			2 casing entries, drive and suction			Shaft seals:
			end			Uncooled gland packing; with or without barrier fluid.
			2 rolling element bearings
			drive on discharge side			Standardized mechanical seal (uncooled, cooled) to EN 12756.
			for the entire H/Q range			Double-acting mechanical seal with standardized mechanical
						seals to EN 12756 (back-to-back or tandem).
			same as installation type C, but
						Cartridge seals, special designs.
D			drive on suction side			Drive:
						Electric / hydraulic drives, Diesel engines or turbines up to max.
						4000 1/min.
			Horizontal close-coupled pump,			4.4	Applications
E			common bearing for pump and mo-
			tor,			Municipal water supply: pumping stations, water treatment
			rigid coupling,			and pressure boosting systems.
Ex			radial suction nozzle
						Water treatment: filtration, reverse osmosis.
			H/Q range: up to 100 m3/h, 25 bar
						Pumps in industrial applications: general water supply, cold
F Fx			same as installation type E, but			water, washing systems, recycling, cooling circuits, boiler feed
			axial suction nozzle			systems, hot water, superheated water, condensate handling,
						process, organic and inorganic liquids, degreasing agents,
			Vertical close-coupled pump			washing or alkaline solutions,		lubricants, cooling, surface
						treatment.
V			H/Q range: up to 204 m3/h 25 bar			Air-conditioning: large-scale		air-conditioning	systems,
				up to 100 m3/h 40 bar		high-rise buildings
Vx						Irrigation: centre-pivot sprinkling systems, trickle irrigation
						systems, square sprinkling systems, flood irrigation systems.

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