Hitachi SDS-U — fixed-speed 50 Hz catalogue examples — Nanjing Hitachi Industrial Equipment

Datasheet

Product overview

Power: U90 examples: nominal 90 kW · Pressure: C: 0.7; CH: 0.8; CU: 1.0 MPaG · Flow: 50 Hz C: 16.7 m³/min at stated inlet

Hitachi's English SDS-U brochure distinguishes fixed-speed SDS-U from variable-speed SDS-UV. The existing page is a brand catalogue reference; manufacturing location and current supply belong in the selected quotation rather than being inferred from the Nanjing company history.

Under the stated 50 Hz table conditions of 20°C inlet temperature, 0% relative humidity and 0.1 MPa(A) atmospheric inlet pressure, SDS-U90-C lists 16.7 m³/min at 0.7 MPa(G), nominal 90 kW output and 12 m³/h cooling water. Separate pressure variants SDS-U90-CH and SDS-U90-CU list 15.0 m³/min at 0.8 MPa(G) and 13.7 m³/min at 1.0 MPa(G). These are separate suffixed configurations, not an unrestricted operating curve for one offered model. The 60 Hz U90-C value is 16.8 m³/min and must not be substituted for the 50 Hz row.

Capacity is referred to inlet conditions. Output kW is not measured total package input, and the published water quantity does not establish the site's available water temperature, quality or pressure. SDS-U and SDS-UV performance/control statements require separate selection; no variable-speed savings percentage is promised here.

Provide reference flow and demand cycle, receiving-point pressure and network losses, supply frequency/voltage, ambient and actual cooling-water conditions. Ask for full/part-load package input, unloading behaviour, pressure regulation and stop/start limits. Define dryer/filter and receiver scope, required point-of-use air quality, electrical protection, ventilation, condensate disposal and maintenance access. Confirm model, manufacturing entity/origin, utilities, commissioning and spares, with an agreed performance and air-quality acceptance method. The complete manufacturer SDS-U image is retained at its original modest resolution and can be opened separately.

Catalog reference	HITACHI-SDS-U
Machine	Oil-free
Power	U90 examples: nominal 90 kW
Working pressure	C: 0.7; CH: 0.8; CU: 1.0 MPaG
Published flow	50 Hz C: 16.7 m³/min at stated inlet
Air quality	—
Duty	Food / pharma
Supply	Not specified
Plant	Nanjing Hitachi Industrial Equipment
Series distinction	Fixed-speed SDS-U; not SDS-UV
50 Hz reference conditions	20°C; RH 0%; inlet 0.1 MPa(A)
SDS-U90-C	0.7 MPa(G); 16.7 m³/min; nominal 90 kW
U90-C cooling water	12 m³/h; selected utility conditions required
Separate SDS-U90-CH	0.8 MPa(G); 15.0 m³/min
Separate SDS-U90-CU	1.0 MPa(G); 13.7 m³/min
Frequency distinction	60 Hz U90-C lists 16.8 m³/min
Flow/input boundary	Inlet-condition capacity; motor output not package input
Offer identity	Confirm actual manufacturer, origin and current model availability