Catalogue - Series ZLI, 140 m³/h, 60 m, 150 °C0 pages
Volute pumps
nnnnfor hot water
nnnnZLI 25-125
nnnn80-200
nnnnTECHNICAL DATA
nnnnoutput:
nnnndelivery head:
nnnnspeed:
nnnnmaterial:
nnnntemperature:
nnnncasing pressure:
nnnnshaft seal:
nnnnflange connection:
nnnnsense of rotation:
nnnnmax. 140 m3/h
nnnnmax. 60 m
nnnnmax. 3600 1/min
nnnnspheroidal graphite iron
nnnnmax. 150 °C
nnnnPN 25
nnnnstandard mechanical seal
nnnnDIN 2501 PN 25
nnnnclockwise when seen from drive
nnnnon the pump
nnnnAPPLICATION
nnnnVolute pumps of the series ZLI belong to the programm of heat
nnnncarrier circulation pumps. These pumps in inline design have been
nnnnconstructed as space saving and easy to install pumping units with
nnnnstandard motor.
nnnnThey will be mainly used for circulating hot water in closed pipe
nnnnsystems and vessel systems.
nnnnThe field of applications are
nnnnproduction of energy
nnnnheat transfer
nnnnand other industries
nnnnBAUAUSFUHRUNG
nnnnCasing pressure:
nnnnMaterial design max. 24 bar from 140 °C up to 150 °C.
nnnnPlease note:
nnnnTechnical rules and safety regulations.
nnnnCasing pressure = inlet pressure + delivery head with zero flow
nnnnPosition of branches:
nnnnSuction and discharge branch radially arranged opposite to each
nnnnother.
nnnnFlanges:
nnnnDESIGN
nnnnSingle-stage resp. two-stage pumping units in compact design with
nnnnnominal performances according to DIN 24255 / EN 733 as well as
nnnnadditional size DN 25, where suction and discharge branch are
nnnnarranged opposite to each other for direct installation into the pipe
nnnnwork.
nnnnThere is no common shaft for motor and pump. The motors used are
nnnnstandard motors.
nnnnDue to the process design it is possible to withdraw the whole insert
nnnnunit without detaching the pump casing from the pipe work.
nnnnBy means of the unit construction system of the additional size DN 25
nnnnthe single-stage and the two-stage design have the same dimensions.
nnnnThe performance of the pump is optimally adapted to the service point
nnnnby mounting or dismounting a stage.
nnnnThe individual shafts of the unit connected by a plug-in coupling
nnnnfacilitate the dismantling or the replacement of the motor without
nnnnaffecting the pump.
nnnnAt present the programm comprises 10 construction sizes.
nnnnThe flanges correspond to DIN 2534/PN 25. Flange design
nnnndrilled as per ANSI 300 is possible.
nnnnHydraulic:
nnnnFirst hydraulic.
nnnnSecond hydraulic.
nnnnBearing:
nnnnCode of this construction: R»
nnnnCode of this construction: S»
nnnnTwo grease-lubricated antifriction bearings to DIN 625 in the
nnnnmotor, one antifriction bearing grease-lubricated for service-life
nnnnaccording to DIN 625 in the bearing bracket.
nnnnCode of this construction: "V
nnnnSense of rotation:
nnnnClockwise when seen from drive on the pump.
nnnnShaft sealing:
nnnnThe shaft sealing is a single mechanical seal, flushed from
nnnninternal source, uncooled and balanced.
nnnnCode AAE: sliding material SiC/carbon for hot water
nnnnwithout abrasive admixtures.
nnnnTemperature range up to 150 °C
nnnn133.64610.54.01 E
nnnnPUMPTECHNOLOGY ZLI P 1/19
nnnn06/98
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