宁波德曼压缩机有限公司 · Cixi, Ningbo
A compressor and air-system business with distinct product paths
The company's history separates the Deman business beginning in 1998 from factory establishment in 2001. It describes research, manufacturing, sales and service, with remote cloud control introduced in 2016.
Its catalog covers screw compressors, blowers, vacuum pumps, piping, treatment and parts. The manufacturing description names 8S workshop management, JIT and cloud management systems and an ISO 9001:2015 quality-system approach.
For the offered machine, obtain component and serial identification and relevant inspection records. Those company descriptions do not establish the current certificate or configuration of every unit.
Choose the duty before comparing the motor sizes
General industrial air · two-stage family
DDVe
0.5–0.7 MPa, 11–450 kW and 2.8–93 m³/min are the published family overview.
Select the actual model and pressure-qualified row. Opposite family endpoints cannot describe one machine. GGVe is a separate family.
DDVe model-selection requirements →Variable demand · one named model
ZZV37e
37 kW / 0.8 MPa; air-cooled; 360–440 V; 1,250 × 950 × 1,240 mm; 468 kg.
The original page does not give an unambiguous delivery value. Request the ZZV37e curve and control range. ZV37e is a different entry.
ZZV37e physical and enquiry facts →Continuous lower-pressure process
LDV
0.30–0.45 MPa with individual 160, 200 and 280 kW rows.
Start with process pressure and distribution loss. Match each delivery value to its pressure and actual package input.
LDV pressure-specific model facts →LDV original technical-image rows
The same motor has different delivery at different pressures
The source labels these values discharge volume in m³/min. Obtain the reference/test conditions before calling them standardized FAD results or comparing specific energy.
The detailed LDV280-3 row gives 85.0 m³/min at 0.30 MPa and 72.0 at 0.45 MPa. Those rows take precedence over the page's inconsistent 47–71 headline range.
Each listed model has maximum pressure 0.45 MPa. Keep rated pressure, volume, input and installation conditions together.
| Pressure / package | LDV160-3 160 kW | LDV200-3 200 kW | LDV280-3 280 kW |
|---|---|---|---|
| 0.30 MPa | 47.0 m³/min | 65.0 m³/min | 85.0 m³/min |
| 0.35 MPa | 45.2 m³/min | 63.1 m³/min | 82.0 m³/min |
| 0.40 MPa | 43.7 m³/min | 61.5 m³/min | 77.0 m³/min |
| 0.45 MPa | 41.2 m³/min | 53.5 m³/min | 72.0 m³/min |
| L × W × H | 3,200 × 2,100 × 2,150 mm | 4,800 × 2,250 × 2,400 mm | 4,800 × 2,250 × 2,400 mm |
| Outlet / mass | DN150 / 3,500 kg | DN200 / 6,800 kg | DN250 / 7,800 kg |
For a low-pressure process, attach continuous/peak demand, simultaneous users and pressure loss. Compare the selected compressor at that operating duty rather than choosing a general-air unit solely by motor size.
Manufacturer policy clarification · 12 September 2026
Make warranty eligibility and maintenance responsibilities explicit
Deman describes a ten-year programme for eligible genuine models, with authorized purchase, official registration, original maintenance and compliant operating conditions. Obtain the actual model's warranty card and confirm destination service before including it in an export contract.
Before delivery
- Eligible model, serial registration and authorized contracting route.
- Written manufacturing/material-fault coverage and exclusions.
- Destination service provider, travel/labour/parts responsibilities and response arrangements.
During operation
- Manual-compliant operation, suitable ventilation and no corrosive gases.
- The notice's stated room-temperature ceiling: 45°C.
- Original consumables/parts and required service records.
The dated notice describes these service milestones
- 500 hoursInitial check under the published programme.
- About 1,500 hoursInspection point within the maintenance cycle.
- 3,000 hoursComprehensive maintenance cycle.
The general service page still refers to a 4,000-hour charging cycle. Agree the current selected-model manual and written terms rather than combining old and new schedules. Consumables and routine maintenance have costs; a long warranty does not make all maintenance free.
Improper operation, unauthorized changes and maintenance/parts violations have exclusions. Confirm eligibility and cost allocation for the particular installation.
Evaluate the air system and the running cost together
Define the useful air duty
State point-of-use pressure, pressure-qualified demand, load profile, hours, quality, ambient/altitude, supply and cooling. Establish a measured baseline before comparing a saving proposal.
Itemize the equipment and services
Deman names station planning, treatment, piping, installation and maintenance services. Agree actual dryer/filter/receiver, drains, controls, sensors, cloud connectivity and engineering work included.
Agree the acceptance and lifecycle records
Request model-specific flow/input conditions, noise basis, performance test, manuals, commissioning and service clearances. Identify original parts/consumables, maintenance records and destination warranty responsibilities.
Send DDVe, ZZV37e or the selected LDV model with its duty
Attach pressure, demand and site conditions, then ask for the actual package scope and current maintenance/warranty terms.
Prepare a Deman air-system enquiry →Deman model and contract questions
Can DDVe's minimum power and maximum delivery be quoted together?
They are family endpoints spanning different configurations. Identify the selected model and pressure-qualified row before comparing input or package size.
Is ZZV37e the same machine as ZV37e?
No. The reviewed ZZV37e page gives 468 kg and 1,250 × 950 × 1,240 mm. Obtain its own delivery/control curve rather than borrowing from the separate ZV entry.
Why does the LDV table exceed the headline capacity range?
The original technical image gives pressure-specific model rows. LDV280-3 lists 85.0 m³/min at 0.30 MPa and 72.0 at 0.45 MPa. Use those rows with the manufacturer's test/reference basis.
Does ten-year warranty mean free maintenance everywhere?
The dated manufacturer notice has model eligibility, registration, operating and original-maintenance requirements, with consumable and other exclusions. Obtain the written destination service and cost terms for the order.