EP-CM160PVF Variable Frequency Water-Lubricated Oil-Free Screw Air Compressor

Name: EP-CM160PVF VSD Water-Lubricated Oil-Free Screw Compressor | 160 kW | Ever Power
SKU: EP-CM160PVF

The EP-CM160PVF is a 160 kW permanent magnet VSD water-lubricated oil-free screw compressor delivering 11.54–28.85 m³/min at 0.8–1.25 MPa — a heavy industrial VSD model serving as trim control in petrochemical central air stations, tracking seasonal throughput variation in pulp and paper mills, and optimising energy consumption in large mining and process facilities with variable compressed air demand.

Description

EP-CM160PVF | 160 kW VSD Water-Lubricated Oil-Free Compressor — Heavy Industrial VSD Trim at 28.85 m³/min

In heavy process industry — petrochemicals, pulp and paper, large mining operations — compressed air demand is rarely constant across the operating year. Petrochemical plant throughput varies with feedstock availability and downstream demand. Paper mill production rates follow market conditions and seasonal wood fibre supply. Mining operations vary with ore grade, processing targets, and planned shutdown periods. In all these environments, the compressed air system must be sized for peak demand — but peak demand may represent only 60–75% of operating hours on average.

The EP-CM160PVF addresses this heavy industrial demand variability at 160 kW scale. As a standalone VSD unit or as the trim control element in a hybrid fixed/VSD central air station, its variable output range of 11.54–28.85 m³/min (408–1,019 cfm) at 0.8 MPa absorbs demand variation that fixed-frequency compressors cannot economically serve — maintaining ±0.1 MPa pressure stability throughout while consuming energy proportional to actual demand. Structural ISO 8573-1 Class 0 oil-free air is maintained across the full VSD range, satisfying petrochemical instrument air and paper mill process air quality requirements at every operating speed. For heavy industrial system design, contact our engineering team.

EP-CM160PVF 160kW VSD water-lubricated oil-free screw compressor petrochemical paper mill mining

Technical Specifications

Parameter	0.8 MPa	1.0 MPa	1.25 MPa
Motor Power	160 kW / 220 HP (PM VSD)	160 kW / 220 HP (PM VSD)	160 kW / 220 HP (PM VSD)
FAD range (m³/min)	11.54–28.85	9.81–24.52	8.87–22.17
FAD range (cfm)	408–1019	346–866	313–783
Noise Level	78 dB(A)	78 dB(A)	78 dB(A)
Weight W-cooled	5300 kg	5300 kg	5300 kg
Weight A-cooled	3720 kg	3720 kg	3720 kg
Drive Type	Permanent magnet VSD	Permanent magnet VSD	Permanent magnet VSD
Motor Efficiency	≥94% (IE4 class)	≥94% (IE4 class)	≥94% (IE4 class)
Pressure Band	±0.1 MPa	±0.1 MPa	±0.1 MPa
Air Quality	ISO 8573-1 Class 0	ISO 8573-1 Class 0	ISO 8573-1 Class 0
Lubrication	Pure water — zero oil	Pure water — zero oil	Pure water — zero oil

VSD Trim Control: The Most Efficient Heavy Industrial Station Architecture

The hybrid fixed/VSD compressor station architecture — fixed-frequency base load units plus a VSD trim control unit — delivers lower total energy cost than either all-fixed or all-VSD configurations for most large industrial facilities. Fixed-frequency units operate at constant high efficiency serving constant base demand; the VSD trim unit absorbs all demand variation at maximum part-load efficiency. The EP-CM160PVF, with its 11.54–28.85 m³/min VSD range, is sized to serve as the trim control unit in central air stations serving large petrochemical, paper, and mining facilities.

Cost Dimension	Fixed-Frequency	Variable Frequency (VSD)
Energy over 10 years	~80% of total ownership cost	~45–50% — up to 35% electricity saving
Startup current	High inrush — 6–8× running current	Soft-start — zero inrush
Partial-load efficiency	Full power at 40% demand	Speed proportional to demand
Pressure band	±2–3 bar (on/off cycling)	±0.1 MPa continuous VSD control
Idle period waste	Continues at full speed	Reduces to minimum stable speed
VSD premium payback	—	Typically 6–18 months at large scale

EP-CM160PVF VSD water-lubricated heavy industrial trim control petrochemical paper mill

Key Features

28.85 m³/min VSD Trim Range

The EP-CM160PVF's 11.54–28.85 m³/min variable output makes it the highest-capacity trim control VSD unit in the fixed-motor CMPV series. As the trim element in a hybrid station, it absorbs demand swings across the full petrochemical plant throughput variation range while fixed-frequency base units run at constant efficient load.

320,000–400,000 kWh Annual Saving Potential

At 160 kW and 65% average demand: annual VSD saving versus fixed-frequency amounts to approximately 320,000–400,000 kWh — making the EP-CM160PVF one of the highest-return VSD investments in the CMPV series at this scale. VSD premium payback is typically within 6–12 months for heavy process facilities.

Seasonal Throughput Auto-Adjustment

Paper mill throughput variation from 60% to 100% of capacity across seasons creates proportional compressed air demand variation. The EP-CM160PVF adjusts its output proportionally to mill throughput — no manual seasonal adjustment required. Energy bills follow production rates rather than running at peak-throughput cost all year.

Air-Cooled Self-Contained for Remote Sites

The air-cooled variant (3720 kg, 3100×1700×2090 mm) requires only electrical connection — no cooling water infrastructure. Isothermal water-lubricated compression maintains consistent output at 40–45°C remote site ambient temperatures where dry adiabatic alternatives experience efficiency and output derating.

Structural Class 0 — Petrochemical Safety Air

Water lubrication provides structural Class 0 oil-free status at every VSD speed — no filter bypass risk, no thermal desorption, no breakthrough failure mode. For petrochemical instrument air serving safety-critical control valves and emergency shutdown actuators, this structural guarantee satisfies safety case requirements that filter-dependent systems cannot provide.

Fixed/VSD Hybrid Station Coordination

The 485 communication interface enables coordination with master compressor controllers in hybrid fixed/VSD stations. The EP-CM160PVF can operate as a follower unit, receiving load commands from the station master controller and adjusting its output while fixed-frequency units maintain constant base load — the most energy-efficient multi-unit station architecture for large variable-demand facilities.

EP-CM160PVF VSD water-lubricated oil-free compressor petrochemical paper mill mining station

Customer Case Studies

Saudi Arabia — Major Petrochemical Complex

Industry: Petrochemical Processing | Application: VSD trim control in a central instrument air station serving variable-throughput olefins production units

"Our central air station uses two fixed-frequency base load units plus the EP-CM160PVF as VSD trim control. The VSD unit absorbs all demand variation caused by throughput changes and planned maintenance on individual process units. Station pressure has been within ±0.1 MPa continuously since installation. Annual station energy saving versus previous all-fixed-frequency configuration: 24%. The structural Class 0 instrument air quality also removed our carbon adsorber inspection programme from the station maintenance schedule."

★★★★★

Finland — Integrated Pulp and Paper Mill

Industry: Pulp & Paper | Application: VSD process air for a large paper machine with seasonal throughput variation driven by raw material availability

"Our mill runs at 65–100% throughput depending on the season and raw material supply. Previous fixed-frequency compressors ran at the same electricity cost regardless of throughput level. The EP-CM160PVF tracks our seasonal throughput automatically. Our winter reduced-throughput months now generate compressor electricity bills 27% lower than summer peak months — exactly proportional to our throughput difference. The water-lubricated design has also been more reliable in our humid mill environment than the dry oil-free unit it replaced."

★★★★★

Australia — Remote Open-Cut Mining Operation

Industry: Mining | Application: VSD compressed air for a remote iron ore processing facility with variable production rates and planned shutdown periods

"Remote site operation requires both self-contained equipment (no cooling water) and high reliability. The air-cooled EP-CM160PVF meets both requirements. In our 42°C average summer ambient, VSD output has been consistent with commissioning baseline — no summer derating. During planned quarterly maintenance shutdowns, the VSD automatically reduces to minimum stable speed rather than cycling on and off — extending compressor service life and reducing maintenance intervention frequency."

★★★★★

Frequently Asked Questions

What is the VSD trim control role of the EP-CM160PVF in a petrochemical central air station?

In a large petrochemical central compressed air station, fixed-frequency base load compressors serve constant instrument air demand while a VSD trim control unit handles all demand variation above and below the base load level. The EP-CM160PVF, as the trim control unit at 160 kW scale, adjusts its output from 11.54 to 28.85 m³/min to absorb demand fluctuations caused by process load changes, turnaround activities, and seasonal throughput variation — maintaining ±0.1 MPa pressure stability across the entire station demand range while the fixed-frequency units run at constant efficient load.

How does the EP-CM160PVF handle seasonal throughput variation in a pulp and paper mill?

Paper mill throughput varies seasonally with raw material availability, energy costs, and market demand — production rates may range from 60% of capacity in low-demand periods to 100% during peak orders. Compressed air demand tracks throughput proportionally. The EP-CM160PVF's VSD adjusts output across its 11.54–28.85 m³/min range to match actual production throughput, consuming energy proportional to the current rate rather than running at peak-throughput cost throughout all seasons.

What is the annual energy saving potential of the EP-CM160PVF at this scale?

At 160 kW, 8,000 annual operating hours, and 65% average demand: VSD energy saving versus fixed-frequency operation amounts to approximately 320,000–400,000 kWh per year. For petrochemical and paper mill operations where electricity is one of the largest operating cost categories, this saving is a material annual contribution to operating cost reduction — and at typical industrial electricity rates, recovers the VSD premium within the first 6–12 months of operation.

How does the EP-CM160PVF perform in remote mining locations at high ambient temperature?

The air-cooled EP-CM160PVF variant (3720 kg, 3100×1700×2090 mm) requires only electrical connection and compressed air outlet piping — no cooling water infrastructure. The water lubrication system's isothermal compression maintains chamber temperature at ambient +15°C regardless of external conditions. At 40–45°C summer ambient temperatures typical of remote mining locations, the EP-CM160PVF maintains consistent output and efficiency where dry oil-free alternatives may require derating.

Can the EP-CM160PVF be integrated into a multi-unit station with fixed-frequency base load compressors?

Yes — this is the most energy-efficient configuration for large facilities with mixed constant and variable demand. One or more fixed-frequency base load units serve the constant minimum demand at maximum efficiency; the EP-CM160PVF as the VSD trim unit absorbs all demand variation above the base load level. The 485 interface enables coordination with a master compressor controller that sequences unit loading and staging automatically.

Heavy Industrial VSD Trim. Seasonal Throughput Tracking. 160 kW.

Petrochemical complexes, pulp and paper mills, and remote mining operations in Saudi Arabia, Finland, Australia, and 50+ markets choose the EP-CM160PVF for heavy industrial VSD energy optimisation at 160 kW scale. Contact our engineering team for a complete hybrid station design and energy analysis.

📧 Request Hybrid Station Design Compare CMPV Models