Water Cooled Zr Series Oil Free Air Compressor

Procuring directly from specialized China Water Cooled Zr Series Oil Free Air Compressor manufacturers is the most efficient method to upgrade heavy-duty processing plants. DECHUAN's ZR series integrates a labyrinth-designed moisture separator that isolates condensate from the compressed air system efficiently, keeping downstream pipe networks dry and clear.

Thermal Management & Heat Exchange Engineering

Air compression naturally generates intense heat. If not managed properly, this heat causes air density to drop and component stress to spike. The air compressor addresses this with an integrated liquid-to-air cooling layout:

• Robotic-Welded Stainless Steel Tube Bundles: The heat exchangers feature premium stainless steel construction to prevent internal corrosion. Robotic welding ensures completely leak-free pathways between cooling water and compressed air lines.

• Aluminum Star-Shaped Cooling Fins: Internal tubes are wrapped in high-density star-shaped fins, increasing the effective thermal contact area by 40% for rapid heat transfer.

• Labyrinth Moisture Condensation Separator: As air cools rapidly inside the ZR heat exchanger, the moisture is pushed through a tortuous labyrinth path, separating condensed water droplets without causing an inline pressure drop.

Overcoming Thermal Efficiency Loss in Hot Climates

Air-cooled compressors often suffer from thermal derating and automatic over-temperature shutdowns when summer ambient temperatures exceed 40°C. This forces factories to slow down production or invest in expensive external air conditioning for their compressor rooms.

The Water Cooled Zr Series Oil Free Air Compressor bypasses ambient air limits entirely:

• Full Water Jacketing: High-velocity water channels envelop the compression stages, removing heat directly from the rotor housing.

• Robotic-Welded Coolers: Stainless steel tube bundles with aluminum star fins maximize the thermal contact surface area without risk of internal weld fractures.

• Labyrinth Moisture Separation: Captures up to 99% of condensed water vapor directly after the cooling stage, preventing liquid water carryover.

Technical Performance Metrics

Performance reference conditions for the unit were measured according to Annex C, 4th edition (2009) of ISO 1217:

· Relative humidity: 0%

· Absolute inlet pressure: 1 bar

· Inlet temperature: 20°C Discharge rate (FAD) was measured at the following operating pressures:

Constant speed type:

·  -7.5 bar type: 7 bar

· -8.6 bar type: 7 bar

· -10 bar type: 9 bar

VSD type:

· -8.6 bar type: 7 bar

· -10.4 bar type: 9 bar

· (2) Class A weighted emission sound pressure level of the workstation (LpWSAd). Measured according to ISO 2151:2004 (using 150 9614/2 sound intensity scanning method). The newly added correction factor is a completely uncertain value (KpAd), conforming to the test code.

· (3) Weight is for reference only; the actual weight supplied shall prevail.

ZR/ZT 110-160 (FF) STD

According to ISO 1217 Annex C, 4th Edition (2009), the unit performance reference conditions are as follows:

· Relative humidity: 0%

· Absolute inlet pressure: 1 bar

· Inlet temperature: 20°C

Displacement FAD is measured at the following operating pressures:

Constant speed models:

-7.5 bar models: 7 bar

-8.6 bar models: 7 bar

-10 bar models: 9 bar

VSD models:

-8.6 bar models: 7 bar

-10.4 bar models: 9 bar

(2) Class A weighted emission sound pressure level of the workstation (LpWSAd). Measured according to ISO 2151:2004 (ISO 9614/2 sound intensity scanning method). The newly added correction factor KpAd is uncertain, complying with test code.

(3) V1=380V, V2=400V.

(4) Weight is for reference only; actual weight shall prevail.

ZR/ZT 200-275 (FF)

-Relativehumidity:0%

-Absolute inlet pressure: 1bar

-Inlet temperature:20°℃

Discharge rate (FAD) was measured at the following operating pressures

Constant speed type:

-7.5 bar type: 7 bar

-8.6 bar type: 7 bar

-10 bar type: 9 bar

VSDtype:

-8.6 bar type: 7 bar

-10.4 bar type: 9 bar

(2) Class A weighted emission sound pressure level of the workstation (LpWSAd).

Measured according to ISO 2151:2004(using 150 9614/2(sound intensity scanning method).

The newly added correction factor is a completely uncertain value (KpAd), conforming to the test code.

(3) Weight is for reference only; the actual weight supplied shall prevail.

ZR 300-750

Performance reference conditions for the unit were measured according to Annex C, 4th edition (2009) of ISO 1217:

· Relative humidity: 0%

· Absolute inlet pressure: 1 bar

· Inlet temperature: 20°C Discharge rate (FAD) was measured at the following operating pressures:

Constant speed type:

·  -7.5 bar type: 7 bar

· -8.6 bar type: 7 bar

· -10 bar type: 9 bar

VSD type:

· -8.6 bar type: 7 bar

· -10.4 bar type: 9 bar

· (2) Class A weighted emission sound pressure level of the workstation (LpWSAd). Measured according to ISO 2151:2004 (using 150 9614/2 sound intensity scanning method). The newly added correction factor is a completely uncertain value (KpAd), conforming to the test code.

· (3) Weight is for reference only; the actual weight supplied shall prevail.

ZR 200X-400X

Performance reference conditions for the unit were measured according to Annex C, 4th edition (2009) of ISO 1217:

· Relative humidity: 0%

· Absolute inlet pressure: 1 bar

· Inlet temperature: 20°C Discharge rate (FAD) was measured at the following operating pressures:

Constant speed type:

·  -7.5 bar type: 7 bar

· -8.6 bar type: 7 bar

· -10 bar type: 9 bar

VSD type:

· -8.6 bar type: 7 bar

· -10.4 bar type: 9 bar

· (2) Class A weighted emission sound pressure level of the workstation (LpWSAd). Measured according to ISO 2151:2004 (using 150 9614/2 sound intensity scanning method). The newly added correction factor is a completely uncertain value (KpAd), conforming to the test code.

· (3) Weight is for reference only; the actual weight supplied shall prevail.

Export Packing & Secure Logistics Flow

• Anti-Corrosion Interior Protection: Heavy application of vapor-corrosion inhibitors on all external metal connection points before sealing.

• Vacuum Barrier Sealing: The entire chassis is encased in a thick vacuum-sealed foil barrier to block marine moisture during long ocean transits.

• Reinforced Structural Skids: Water Cooled Zr Series Oil Free Air Compressor mount on thick, heavy-duty structural steel channels, allowing local crane operators to safely lift and position the heavy system.

Waste Heat Recovery Potential

The closed-loop water system of the product is configured for direct integration with DECHUAN's waste heat recovery retrofits. Instead of wasting thermal energy into cooling towers, the extracted heat can heat boiler feedwater or generate domestic hot water up to 90°C, providing free energy savings for your facility.

Operational FAQ

Q: What are the water quality requirements for the Water Cooled Zr Series Oil Free Air Compressor cooling loop?

A: To prevent mineral scaling and tube fouling, we recommend treated industrial cooling water or a closed-circuit distilled water loop with a neutral pH level and low calcium carbonate concentrations.

Q: How does the mechanical load/unload valve reduce the compressor's breakdown risks?

A: Because the valve is mechanically interlocked, it does not rely on sensitive pneumatic pilot lines or external instrument air. This eliminates common failure points found in complex electronic solenoid setups.

Q: Why is the labyrinth water separator design more reliable than traditional mechanical cyclonic traps?

A: Cyclonic traps rely entirely on high air velocities to sling water outward, meaning their separation efficiency drops drastically when the compressor backs down its flow rate. The labyrinth configuration forces air through constant directional changes, ensuring consistent moisture drop-out across the entire 4.2 - 148.5 m³/min capacity spectrum.