Z10 / Z12 / ZR10 / ZR12

No. Z12 has the higher flow limit, while Z10 has the higher maximum catalogue head at 50 Hz. Compare the curves at the required flow.

Provide the clear bore, dynamic water level and installation depth, along with target flow, discharge pressure and pipework details. Water analysis helps determine materials.

The Z10 and Z12 envelopes differ: the 50 Hz catalogue lists the higher maximum head for Z10 and the higher maximum flow for Z12. ZR10 and ZR12 are duplex hydraulic options. Select from the duty curves using the dynamic water level, delivery-line losses and required outlet pressure, not the separate catalogue limits. Example applications: High-flow agricultural irrigation wells; Municipal water supply and reservoir filling.

Z10, 50 Hz maximum flow / maximum head: 350 m³/h / 546 m; separate limits. Verify against the complete model code, frequency and operating conditions. Family limits may occur on different variants or at different duty points; they must not be assumed to apply simultaneously.

Z12, 50 Hz maximum flow / maximum head: 520 m³/h / 452 m; separate limits. Verify against the complete model code, frequency and operating conditions. Family limits may occur on different variants or at different duty points; they must not be assumed to apply simultaneously.

Maximum pump outside diameter: Z10: 271 mm; Z12: 302 mm (including cable guards). Verify against the complete model code, frequency and operating conditions.

Different hydraulic material options for Z and ZR variants. Spring-loaded check valve and multistage hydraulics. Separate duty curves for the 10- and 12-inch classes. Assess these features with flow, head, fluid and installation conditions.

Establish dynamic water level, well yield and sand content. Select motor cooling, cable sizing and electrical protection as part of the complete system.

No. Selection requires dynamic water level, well yield, delivery elevation and pressure, pipe losses and sand content. Installation depth is not total dynamic head. Motor cooling and minimum submergence require separate checks.

The Technical Documents section lists 2 document links. PDFs open on the Parla site. Check model, language, 50/60 Hz and revision; document types may vary by product.

Share minimum, normal and maximum flow, total head, liquid and temperature, power supply, suction and installation conditions. For replacements add the nameplate, connection dimensions and measured operating values.