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HZS Stainless Steel Centrifugal Pump

The HZS is Hongjiu’s single-stage stainless steel centrifugal pump for clean water transfer at moderate head. Extended shaft design eliminates the coupling — no alignment, fewer wearing parts, shorter overall length. AISI 304 SS wetted components as standard (316 optional). Two configurations for fixed-duty and variable-demand applications.

Series Specifications

Parameter	Value
Pump Type	Horizontal single-stage, extended shaft
Flow Rate	2 – 120 m³/h
Head	5 – 50 m
Nominal Diameter	DN32 – DN100
Pump Body	AISI 304 SS (316 optional)
Impeller	AISI 304 SS
Shaft Sleeve	AISI 304 SS
Mechanical Seal	SiC / graphite / EPDM
Motor Standard	IE3 (IE4, IE5 optional)

Two Configurations

Model	Motor	Control	Best For
HZS Standard	IE3 Induction	On/Off (DOL)	Fixed-duty clean water transfer, simple circulation
HZSE VFD	IE3 Induction	Built-in VFD, PID constant pressure	Building supply, HVAC loops, variable-demand applications

Single-Stage vs Multistage — Quick Guide

Factor	HZS Single-Stage	HK(L) / HL Multistage
Head range	5 – 50 m	Up to 245 m
Flow range	2 – 120 m³/h	0.4 – 85 m³/h
Initial cost	Lower	Higher
Best for	Moderate head, higher flow	High head, moderate flow

Rule of thumb: If your required head falls within 5–50 m and flow is a priority, the HZS is simpler, lower-cost, and easier to maintain than a multistage solution.

Applications

HVAC chilled and hot water secondary loops · Domestic and community water supply boosting · Light industrial process water (food, pharma, electronics) · General clean water transfer and tank filling