Hengda ZW, VW and double-machine low-pressure semi-oil-free series — Nanjing Hengda Compressor

Datasheet

Product overview

Hengda ZW, VW and double-machine low-pressure semi-oil-free series from Nanjing Hengda Compressor

Hengda groups these ZW/VW/double-machine references under low-pressure semi-oil-free lubrication. The original product photographs depict corresponding catalogue configurations; request the exact offered model/drawing and air-quality evidence rather than treating a lubrication label as an ISO zero-oil certificate.

The ZW table lists ZW-0.11/7 with 0.11 m³/min at 0.7 MPa, 1.1 kW motor power, 1080 × 425 × 1040 mm and 140 kg. ZW-0.15/7 is 0.15 m³/min at 0.7 MPa, 1.5 kW, the same envelope and 143 kg. These are distinct motor/flow rows, not selectable performance at any discharge pressure.

VW-0.8/9 is listed at 0.8 m³/min and 0.9 MPa with a 7.5 kW motor, 1800 × 720 × 1340 mm and 460 kg. The separate 2-VW-1.6/9 entry lists 1.6 m³/min at 0.9 MPa, 2 × 7.5 kW, 1920 × 1600 × 1385 mm and 840 kg. Retain the two-motor notation and agree how the two machines start, alternate, stage and respond to peak demand.

The 2-WW-2.5/9 reference lists 2.5 m³/min at 0.9 MPa with 2 × 11 kW, 2150 × 1770 × 1700 mm and 1215 kg. A double-machine layout does not automatically give full-flow standby redundancy; ask for available output with one machine stopped and the control arrangement.

For purchase, provide minimum/normal/peak demand, required working pressure, hours/duty cycle, ambient/altitude, electrical supply and installation/service clearances. Request the delivery reference conditions and permissible duty cycle, exact motor/starting data, receiver volume/rating, lubrication and maintenance instructions. Define drying/filtration, residual oil, dew point and particles at the user, along with agreed testing and the current offered model revision. Confirm commissioning, wear parts and destination support scope.

Catalog reference	HENGDA-LP-SEMI
Machine	Oil-free
Power	—
Working pressure	—
Published flow	—
Air quality	—
Duty	General industry
Supply	Not specified
Plant	Nanjing Hengda Compressor
Published category	Low-pressure semi-oil-free lubrication
ZW-0.11/7	0.11 m³/min at 0.7 MPa; 1.1 kW; 1080 × 425 × 1040 mm; 140 kg
ZW-0.15/7	0.15 m³/min at 0.7 MPa; 1.5 kW; same envelope; 143 kg
VW-0.8/9	0.8 m³/min at 0.9 MPa; 7.5 kW; 1800 × 720 × 1340 mm; 460 kg
2-VW-1.6/9	1.6 m³/min at 0.9 MPa; 2 × 7.5 kW; 1920 × 1600 × 1385 mm; 840 kg
2-WW-2.5/9	2.5 m³/min at 0.9 MPa; 2 × 11 kW; 2150 × 1770 × 1700 mm; 1215 kg
Conditions	Delivery basis, duty cycle, electrical data and controls to agree
Air quality	Lubrication label is not an ISO air-quality certification