FORWATER PYPZ-550E Permanent Magnet Variable Frequency Booster Pump

The PYPZ-550E is a permanent magnet variable frequency booster pump for constant-pressure household water supply. Instead of starting and stopping with a mechanical switch, the permanent magnet motor varies its speed with demand — so the shower pressure stays the same whether one tap or four are open, and the pump runs silently at the flow you actually need.

Key Features

• Permanent magnet variable frequency drive — speed follows demand for steady pressure at every outlet
• Energy efficient and stable — draws only the power the duty point requires, instead of cycling at full load
• Noiseless operation — quiet enough for installations inside the home
• Intelligent control — automatic start/stop and protection functions built into the controller
• Compact design, easy to install — 350 × 200 × 205 mm package, 25 mm ports
• Insulation grade F, protection class IPX4

Technical Specifications

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Parameter	Value
Model	PYPZ-550E
Output power	0.55 kW (0.75 HP)
Max. head (H.max)	43 m
Max. flow (Q.max)	75 L/min (4.5 m³/h)
Suction head (S.Head)	6 m
Speed	5000 r/min
Inlet / outlet (DNA / DNM)	25 mm / 25 mm
Gross weight	5.6 kg
Packing size (L × W × H)	350 × 200 × 205 mm
Insulation grade	F
Protection class	IPX4
Media	Clean water and other low-viscosity, non-aggressive liquids

Performance at operating heads (Flow vs Head)

Flow (L/min)	Head (m)
0	43
75	0

Curve endpoints shown. The full head-flow curve and efficiency points are available on request.

Operating Conditions

Property	Value
Liquid temperature	4 – 50 °C
Ambient temperature	4 – 40 °C
pH value	6.5 – 8.5
Insulation grade	F
Protection class	IPX4
Media	Clean water and other low-viscosity, non-aggressive liquids

Applications

• Whole-house pressure boosting from tanks and cisterns
• Water tower and rooftop tank pressurization
• Hot water system pressurization
• Intake water from wells and pressurized tap water supply

Why Choose the PYPZ-550E

Buyers move to permanent magnet variable frequency pumps for two reasons: constant pressure and quiet operation. A conventional booster switches on at full speed and off again, so the pressure swings and the pump is heard every time a tap opens. The PYPZ-550E holds the set pressure by varying motor speed, which also cuts energy use at low demand and reduces start/stop wear.

FAQ

Does it need a pressure tank?

Variable frequency pumps regulate pressure electronically, so a large pressure vessel is not required for normal household supply. A small expansion vessel can still be useful in systems with frequent micro-draws — tell us your layout and we will advise.

What voltage is available?

Voltage, frequency and plug type are matched to your market. Confirm your standard on the enquiry and we will quote the correct version.

Can it lift water from a well?

With a 6 m suction head it can draw from shallow wells, tanks and cisterns where the water level is within that limit. For deeper wells, a submersible pump is the correct choice — ask us and we will recommend one.

Related Products

See also the PYS-450E and other booster pumps in the FORWATER range.

Contact FORWATER

Send us your required head, flow and voltage and we will confirm the right model, MOQ and lead time.

Request a quotation · support@forwaterpumps.com · +8618060570295

Specifications will appear here — add product metafields or contact us for datasheets.

Our engineers can send the technical sheet, performance curves and dimension drawings for this model on request.

FORWATER dispatches orders worldwide through trusted freight partners. Pumps are packed in export cartons with shock-proof inserts, and full containers are secured on wooden pallets. Tracking details are shared as soon as your order ships.

Every FORWATER pump is covered by a 2-year warranty against manufacturing defects. If an issue arises, our after-sales team will help you diagnose it quickly and arrange a replacement or repair under the warranty terms confirmed on your order.