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OEM Two-stage Screw air Compressor Chemical Factory Air Equipment Two-stage Screw air Compressor Manufacturer, Factory
Product Description
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Option 1 (Recommended): 250kW Two-Stage Screw Air Compressor for Chemical Plants – High Efficiency & Heavy Duty
Option 2: ETSVII-250A Industrial Two-Stage Air Compressor – 55.0 m³/min, Chemical Factory Equipment
Option 3: Two-Stage Screw Air Compressor 250kW – Energy-Saving Solution for Chemical Manufacturing
Four Short Descriptions
- 250kW two-stage screw compressor, 55.0 m³/min max flow, 0.7–1.3 MPa – for heavy industrial use.
- Two-stage compression + inter-stage cooling – reduces energy loss, delivers higher efficiency than single-stage.
- Built for 24/7 chemical plant operation – robust, reliable, low maintenance.
- 3900×2100×2200 mm, 6700 kg – heavy-duty design with DN125 outlet for high-volume air delivery.
ETSVII-250A Two-Stage Screw Air Compressor – Complete Product Overview
Introduction
The ETSVII-250A is a 250kW two-stage screw air compressor designed for demanding industrial applications, particularly in chemical plants, manufacturing facilities, and heavy processing environments. With a maximum air delivery of 55.0 m³/min at 0.7 MPa and a wide pressure range from 0.7 to 1.3 MPa, this compressor delivers high-volume, stable compressed air for continuous 24/7 operations.
Unlike single-stage compressors that compress air in one step, the ETSVII-250A employs two-stage compression with inter-stage cooling, reducing the compression ratio per stage and significantly improving overall energy efficiency. The result is lower operating temperatures, reduced internal leakage, extended component life, and measurable energy savings compared to single-stage alternatives.
Advantages
| Advantage Dimension | Description |
|---|---|
| Two-Stage Compression Technology | Air is compressed in two stages with inter-stage cooling, reducing the compression ratio per stage and bringing the process closer to ideal isothermal compression. This improves volumetric efficiency and reduces energy consumption by up to 12% compared to single-stage compressors. |
| High Volume & Pressure Range | Delivers 55.0 m³/min at 0.7 MPa, with pressure options from 0.7 to 1.3 MPa. Multiple pressure settings (0.7/0.8/1.0/1.3 MPa) available to suit diverse industrial requirements. |
| Energy Efficient | Two-stage design reduces the work required for compression, lowering power consumption and operating costs. In high-pressure applications, the energy savings are particularly significant. |
| Designed for Chemical Plants | Built to withstand harsh conditions with robust construction, suitable for continuous operation in chemical and petrochemical facilities where reliable compressed air is critical for instrumentation, process control, and material handling. |
| Heavy-Duty Construction | Weight: 6700 kg, Dimensions: 3900×2100×2200 mm – engineered for stability and durability in demanding environments. |
| Large Outlet Capacity | DN125 (5") outlet connection supports high-volume air delivery with minimal pressure drop, ideal for large-scale industrial distribution systems. |
| Wide Power Range | Available from 45kW to 250kW (60HP to 340HP) – the ETSVII series offers scalable solutions for facilities of all sizes. |
| Intelligent Control | Equipped with advanced PLC control systems for real-time monitoring, fault diagnostics, and optional remote connectivity. |
Technical Specifications
ETSVII-250A General Specifications
| Parameter | Specification |
|---|---|
| Model | ETSVII-250A |
| Rated Power | 250 kW / 340 HP |
| Power Supply | 380V / 50Hz / 3Ph |
| Compression Type | Two-Stage Screw |
| Discharge Pressure / Free Air Delivery |
0.7 MPa → 55.0 m³/min 0.8 MPa → 54.0 m³/min 1.0 MPa → 45.9 m³/min 1.3 MPa → 40.0 m³/min |
| Outlet Connection | DN125 (5") |
| Dimensions (L×W×H) | 3900 × 2100 × 2200 mm |
| Net Weight | 6700 kg |
ETSVII Series Full Specifications
| Model | Power (kW/HP) | 0.7 MPa (m³/min) | 0.8 MPa (m³/min) | 1.0 MPa (m³/min) | 1.3 MPa (m³/min) | Outlet | Weight (kg) | Dimensions (mm) |
|---|---|---|---|---|---|---|---|---|
| ETSVII-45A | 45/60 | 9.8 | 9.7 | 7.8 | 6.6 | Rp2" | 1848 | 2200×1600×1720 |
| ETSVII-55A | 55/75 | 12.8 | 12.4 | 9.7 | 8.7 | Rp2" | 1998 | 2200×1600×1720 |
| ETSVII-75A | 75/100 | 17.6 | 16.6 | 12.4 | 11.1 | Rp2" | 2148 | 2380×1600×1720 |
| ETSVII-90A | 90/125 | 21.0 | 19.8 | 17.9 | 14.2 | DN65 | 2822 | 2900×1800×1912 |
| ETSVII-110A | 110/150 | 24.5 | 23.6 | 19.8 | 17.5 | DN65 | 2822 | 2900×1800×1912 |
| ETSVII-132A | 132/180 | 29.9 | 28.0 | 23.5 | 19.8 | DN80 | 3768 | 3260×1950×1940 |
| ETSVII-160A | 160/220 | 34.5 | 33.7 | 30.0 | 23.8 | DN80 | 3940 | 3260×1950×1940 |
| ETSVII-185A | 185/250 | 41.0 | 38.4 | 32.6 | 28.7 | DN100 | 3990 | 3600×2200×2200 |
| ETSVII-200A | 200/270 | 44.7 | 43.0 | 38.5 | 32.9 | DN100 | 3990 | 3600×2200×2200 |
| ETSVII-220A | 220/300 | 48.6 | 46.9 | 41.0 | 38.0 | DN100 | 6700 | 3900×2100×2200 |
| ETSVII-250A | 250/340 | 55.0 | 54.0 | 45.9 | 40.0 | DN125 | 6700 | 3900×2100×2200 |
Application
The ETSVII-250A two-stage screw compressor is specifically designed for industries requiring high-volume, high-pressure compressed air with superior energy efficiency.
| Industry Sector | Typical Applications |
|---|---|
| Chemical & Petrochemical | Process gas boosting, reactor aeration, pneumatic valve actuation, instrument air systems, material conveying. Designed for continuous 24/7 operation in harsh environments. |
| Industrial Manufacturing | Powering pneumatic tools, automated assembly lines, press operations, and large-scale production equipment. |
| Oil & Gas | Instrumentation and control systems, gas compression, powering pneumatic tools in refineries and offshore platforms. |
| Mining | Drilling equipment, pneumatic tools, remote site operations where reliability is critical. |
| Food & Beverage Production | When paired with appropriate filtration, supports aseptic packaging, product conveying, and clean-in-place systems. |
| Electronics Manufacturing | With precision filtration, provides oil-free air for cleanroom applications, chip handling, and wafer cleaning. |
| Textile Industry | Air-jet looms, spinning, and weaving operations requiring stable high-pressure air. |
| Construction | Large-scale projects requiring high-volume compressed air for sandblasting, painting, and heavy pneumatic tools. |
Frequently Asked Questions
Why choose a two-stage compressor over a single-stage model?
Two-stage compressors compress air in two steps with cooling in between. This reduces the compression ratio per stage, lowers discharge temperatures, and improves volumetric efficiency. The result is 5–12% energy savings compared to single-stage compressors at the same pressure, along with extended component life and reduced maintenance costs.
What is the maximum pressure this compressor can deliver?
The ETSVII series can operate at pressures from 0.7 MPa to 1.3 MPa (approximately 7 to 13 bar). The ETSVII-250A delivers 55.0 m³/min at 0.7 MPa and 40.0 m³/min at 1.3 MPa.
Is this compressor suitable for chemical plant environments?
Yes. The ETSVII-250A is specifically designed for chemical plant applications, with robust construction for continuous heavy-duty operation. Chemical facilities require reliable compressed air for instrumentation, process control, pneumatic conveying, and reactor systems – all supported by this model.
What is the outlet connection size?
The ETSVII-250A features a DN125 (5") outlet connection. Models up to 75kW use Rp2", while larger models use DN65, DN80, DN100, or DN125 depending on capacity.
How much floor space is required?
The ETSVII-250A measures 3900×2100×2200 mm (L×W×H), with a weight of 6700 kg. Adequate clearance for ventilation and maintenance access should be allowed around the unit.
What type of cooling does the ETSVII-250A use?
The "A" designation in ETSVII-250A indicates air-cooled configuration. Air-cooled models are ideal for sites without access to cooling water or where water quality may cause scaling issues.
