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LW(Z) Automatic Self-priming Pumps product view

PRODUCT SERIESLWZ

PRODUCT INFORMATION

LW(Z) Automatic Self-priming Pumps. Boosts on demand. Stops automatically.

The LW(Z) series uses a microcomputer controller to start and stop the pump automatically as water pressure or flow changes. Delayed start, water-shortage protection and anti-stall protection support efficient, reliable operation. Its compact body and low operating noise make the series well suited to household pressure boosting.

01Intelligent controlResponds to pressure and flow

02Protected operationDry-run and anti-stall protection

03Clean-water range0–90 °C · pH 6.5–8.5

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ENGINEERING DETAILS

Control, protection and operating limits.

The product introduction is summarized above. This section continues with the functional design, permitted operating conditions and model-code structure.

DESIGN & OPERATION

Automatic operation

Opening a water outlet starts the pump; when demand ends, the control system stops it without manually switching off the power.

Vortex self-priming hydraulics

The vortex impeller is designed for low-flow, high-head and self-priming duties.

Integrated protection

Delayed start, water-shortage protection, anti-stall protection and an internal thermal protector support safer operation.

Compact installation

Motor, pump, seal and control system form a small, lightweight assembly for domestic water-pressure stabilization.

OPERATING CONDITIONS

01
Ambient temperature must not exceed 40 °C.
02
Conveyed-liquid temperature: 0–90 °C.
03
Permitted liquid pH: 6.5–8.5.
04
Solid impurities: no more than 0.1% by volume; maximum particle size 0.2 mm.
05
Power supply: single-phase AC 220 V, 50 Hz; voltage fluctuation within ±10% of the rated value.
06
Provide frost protection whenever the ambient temperature falls below 0 °C.

MODEL CODELW 200 (Z)

01LW
Vortex self-priming pump
02200
Rated motor power in watts
03(Z)
Intelligent automatic-control version

APPLICATION FIT

Is this the right pump family?

Use the application and construction check below before comparing model numbers. Final selection is always made at the actual operating point.

LW(Z) Automatic Self-priming Pumps illustrative installation environment — CONTROLLED PRESSURE BOOSTINGClean-water pressure support matched to peak demand and inlet pressure.

BEST SUITED TO

Household water boosting

Automatic pressure support for showers, taps and household appliances.

Building water supply

Stabilize usable pressure after confirming simultaneous demand and pipe loss.

Tank-to-house transfer

Automatic start and stop in clean-water transfer systems.

Clean-water distribution

Compact pressure support within the stated liquid and suction limits.

VERIFY BEFORE SELECTION

ControlMicrocomputer-controlled automatic start / stop

Electric motorAsynchronous motor; 3000 r/min synchronous speed

HydraulicsVortex self-priming impeller

Power supplySingle-phase AC 220 V, 50 Hz

ProtectionDelayed start, dry-run, anti-stall and internal thermal protection

Liquid0–90 °C; pH 6.5–8.5

MODEL SELECTION

Compare the operating range.

Shortlist by flow and total head first. Motor power, connection and construction are verified after the duty point is known.

Model	Power (kW)	Power (HP)	Maximum flow	Maximum head	Rated flow	Rated head	Rated current	Maximum suction	Head range	Pipe inner diameter	Weight	Packing size
LW200	0.20	0.27	2.0 m³/h	24 m	1.0 m³/h	10 m	1.0 A	8 m	0–20 m	20 mm	8.3 kg	295 × 230 × 305 mm
LW300	0.30	0.40	2.2 m³/h	30 m	1.0 m³/h	14 m	1.9 A	8 m	0–26 m	25 mm	9.0 kg	295 × 230 × 305 mm
LW400	0.40	0.53	2.4 m³/h	36 m	1.0 m³/h	16 m	2.7 A	8 m	0–32 m	25 mm	9.3 kg	295 × 230 × 305 mm
LW600	0.60	0.80	3.0 m³/h	42 m	1.5 m³/h	18 m	3.9 A	8 m	0–38 m	25 mm	12.1 kg	315 × 245 × 330 mm
LW800	0.80	1.07	3.4 m³/h	50 m	1.5 m³/h	20 m	5.2 A	8 m	0–46 m	25 mm	13.6 kg	315 × 245 × 330 mm
LW1100	1.10	1.50	6.0 m³/h	55 m	2.5 m³/h	30 m	7.0 A	8 m	0–50 m	40 mm	20.7 kg	365 × 280 × 380 mm
LW1100L	1.10	1.50	6.0 m³/h	55 m	2.5 m³/h	30 m	7.0 A	8 m	0–50 m	40 mm	27.6 kg	485 × 305 × 645 mm
LW200(Z)	0.20	0.27	2.0 m³/h	24 m	1.0 m³/h	10 m	1.0 A	8 m	0–20 m	20 mm	8.3 kg	295 × 230 × 305 mm
LW300(Z)	0.30	0.40	2.2 m³/h	30 m	1.0 m³/h	14 m	1.9 A	8 m	0–26 m	25 mm	9.0 kg	295 × 230 × 305 mm
LW400(Z)	0.40	0.53	2.4 m³/h	36 m	1.0 m³/h	16 m	2.7 A	8 m	0–32 m	25 mm	9.3 kg	295 × 230 × 305 mm
LW600(Z)	0.60	0.80	3.0 m³/h	42 m	1.5 m³/h	18 m	3.9 A	8 m	0–38 m	25 mm	12.1 kg	315 × 245 × 330 mm
LW800(Z)	0.80	1.07	3.4 m³/h	50 m	1.5 m³/h	20 m	5.2 A	8 m	0–46 m	25 mm	13.6 kg	315 × 245 × 330 mm
LW1100(Z)	1.10	1.50	6.0 m³/h	55 m	2.5 m³/h	30 m	7.0 A	8 m	0–50 m	40 mm	20.7 kg	365 × 280 × 380 mm
LW1100L(Z)	1.10	1.50	6.0 m³/h	55 m	2.5 m³/h	30 m	7.0 A	8 m	0–50 m	40 mm	27.6 kg	485 × 305 × 645 mm

Catalog reference · LBA PRO LW(Z) fully automatic self-priming pump technical sheet, pages 01–02Need help choosing? Send the duty point →

TECHNICAL LIBRARY

Explore the pump construction.

Switch between the complete pump and its construction view, then use the numbered parts index for identification.

Complete / exploded viewCatalog construction · 21 indexed components

01Complete pumpAssembled state02Exploded viewOpen construction

LW(Z) Automatic Self-priming Pumps complete assembled pump — Complete pump

LW(Z) Automatic Self-priming Pumps exploded construction view with 21 indexed components — Catalog exploded drawing · 21 indexed components

Use the two controls to combine the view back into the complete pump or expand it to the original catalog construction drawing.

Parts indexNumbered construction reference

01Water flow switchControl
02Pressure tankControl
03Pressure switchControl
04Water inletHydraulics
05Filter meshHydraulics
06Pump bodyHydraulics
07ImpellerHydraulics
08Mechanical sealHydraulics
09Connecting pieceHydraulics
10Deep-groove ball bearingDrive train
11RotorDrive train
12Deep-groove ball bearingDrive train
13CableElectrical
14Junction-box bottom coverElectrical
15CapacitorElectrical
16Junction-box upper coverElectrical
17Stator coilElectrical
18Motor enclosureEnclosure / base
19Post-winding sleevesEnclosure / base
20Back coverEnclosure / base
21Mounting feetEnclosure / base

Available technical contentNo unverified performance curve shown

Complete model performance table
Operating conditions
LWZ model-code guide
21-part construction index

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REQUEST SELECTION

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Motor power alone is not enough to select a pump reliably.

01Required flow at peak demand
02Required outlet pressure and total head
03Available inlet pressure or suction lift
04220 V / 50 Hz supply and Z control requirement

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