ATEX Cooling Compressor in Kuwait | Cooling Compressor in KSA
The HEX-EM 300-76H ATEX Semi-Hermetic Compressor provides dependable refrigerant compression for medium and large industrial cooling systems installed in potentially explosive environments. As a robust ATEX Cooling Compressor in Kuwait, it supports process chillers, industrial refrigeration plants, hazardous-area condensing units, chemical facilities, oil and gas sites, marine systems, pharmaceutical production, and specialised HVAC packages.
The compressor uses a four-cylinder semi-hermetic reciprocating design with approximately 75.83 m³/h displacement at 50 Hz and 91.00 m³/h at 60 Hz. Its maximum absorbed power reaches approximately 33 kW at 50 Hz and 40 kW at 60 Hz.
The HEX-EM 300-76H also features a 68 mm cylinder bore, 60 mm piston stroke, 3.5-litre oil charge, and a net weight of approximately 185 kg. It uses a 54 mm suction service valve and a 28 mm discharge service valve for connection to industrial refrigerant piping.
Atex Hub supplies these ATEX semi-hermetic cooling compressors across Kuwait, the UAE, Saudi Arabia, Qatar, Oman, Bahrain, Europe, Africa, and worldwide for hazardous-area refrigeration, industrial chillers, process cooling, and HVAC projects.
What Is a HEX-EM 300-76H ATEX Semi-Hermetic Compressor?
The HEX-EM 300-76H is an industrial piston compressor designed to circulate refrigerant through cooling systems used in classified or potentially explosive environments.
Its electric motor and mechanical compression assembly sit inside one bolted housing. This semi-hermetic construction removes the need for an external compressor shaft seal while still allowing qualified technicians to open the casing for inspection and repair.
During operation, low-pressure refrigerant vapour enters through the suction service valve. Four pistons compress the vapour inside separate cylinders. The high-pressure refrigerant then leaves through the discharge valve and travels toward the condenser.
After releasing heat in the condenser, the refrigerant passes through the expansion device and evaporator. It then returns to the compressor and repeats the refrigeration cycle.
The official model layout includes an oil sight glass, oil charge plug, low- and high-pressure connections, oil drain, crankcase-heater position, oil-return plug, oil-pressure tap, discharge-temperature sensor point, differential oil-pressure sensor point, gas-equalisation connection, and suction and discharge service valves.
Key Features and Applications
The ATEX Cooling Compressor in Kuwait combines high displacement, industrial construction, service access, and practical monitoring points for demanding refrigeration duties.
- Four-cylinder construction: Provides stable refrigerant compression for medium and large cooling loads.
- 75.83 m³/h displacement at 50 Hz: Supports standard GCC industrial electrical frequencies.
- 91.00 m³/h displacement at 60 Hz: Supports suitable international and marine refrigeration projects.
- 33 kW maximum absorbed power at 50 Hz: Matches medium-to-high-capacity industrial systems.
- 40 kW maximum absorbed power at 60 Hz: Supports increased compressor speed at the higher frequency.
- 68 mm cylinder bore: Contributes to the compressor’s refrigerant displacement.
- 60 mm piston stroke: Supports controlled reciprocating compression.
- 3.5-litre oil charge: Lubricates internal bearings, pistons, connecting rods, and crankshaft surfaces.
- 185 kg industrial construction: Provides a strong compressor body for continuous refrigeration duties.
- Oil and pressure monitoring: Supports routine inspection and protective controls.
- Crankcase-heater provision: Helps control refrigerant migration into the oil during shutdown.
- Discharge-temperature sensor point: Supports protection against excessive compressor temperature.
The compressor can support a wide range of refrigeration applications, including:
- Industrial process chillers
- Water and glycol cooling systems
- Oil and gas utility refrigeration
- Petrochemical process cooling
- Chemical reactor and vessel cooling
- Hazardous-area condensing units
- Marine and offshore refrigeration
- Pharmaceutical production cooling
- Industrial cold rooms
- Food-processing refrigeration
- Technical-room HVAC systems
- Compatible industrial heat pumps
Technical Specifications
| Specification | Product Details |
|---|
| Product Type | ATEX semi-hermetic reciprocating compressor |
| Model | HEX-EM 300-76H |
| Series | HEX-EM5 |
| Number of Cylinders | 4 |
| Cylinder Bore | 68 mm |
| Piston Stroke | 60 mm |
| Displacement at 50 Hz | 75.83 m³/h |
| Displacement at 60 Hz | 91.00 m³/h |
| Maximum Absorbed Power at 50 Hz | 33 kW |
| Maximum Absorbed Power at 60 Hz | 40 kW |
| Suction Service Valve | 54 mm solder |
| Discharge Service Valve | 28 mm solder |
| Oil Charge | 3.5 litres |
| Net Weight | 185 kg |
| Compressor Construction | Semi-hermetic piston type |
| Oil Monitoring | Sight glass, oil-pressure tap and differential sensor point |
| Temperature Monitoring | Maximum discharge-temperature sensor point |
| Additional Connections | Oil return and gas equalisation |
These figures come from the official HEX-EM 300-76H technical listing. Actual refrigeration capacity depends on the approved refrigerant, evaporating temperature, condensing temperature, superheat, subcooling, electrical supply, and operating envelope.
Semi-Hermetic Design, Oil Management and Explosion Protection
The semi-hermetic compressor housing combines the motor and piston mechanism in one serviceable body. This construction offers several practical benefits:
- No external shaft seal
- Reduced refrigerant-leak points
- Compact industrial installation
- Serviceable internal components
- Suction-gas motor cooling
- Stable four-cylinder operation
- Strong pressure housing
- Integration into packaged chillers and condensing units
The 3.5-litre oil charge protects the crankshaft, bearings, connecting rods, pistons, and cylinder surfaces. The oil sight glass allows operators to monitor lubricant level during stable operation.
The model also includes an oil-pressure tap and oil differential-pressure sensor position. These points support oil-pressure protection in larger industrial refrigeration systems. Insufficient oil pressure can lead to rapid internal wear or compressor failure.
The crankcase heater connection helps reduce refrigerant migration into the oil during shutdown. Refrigerant dissolved in oil can create foaming and poor lubrication when the compressor starts.
A dedicated maximum discharge-temperature sensor point allows the control system to respond to excessive temperature. High discharge temperature may result from:
- Excessive compression ratio
- High condensing pressure
- Low suction pressure
- Inadequate suction-gas cooling
- Low refrigerant charge
- Incorrect superheat
- Operation outside the approved envelope
The model also includes gas equalisation and oil-return connections, which can support multi-compressor or advanced oil-management arrangements where approved by the refrigeration design.
The exact ATEX marking, gas group, temperature class, Equipment Protection Level, permitted refrigerants, and ambient limits must be confirmed from the supplied compressor nameplate, declaration, operating instructions, and certification documents.
A certified compressor does not automatically make the full refrigeration package ATEX compliant. The complete system must also address ignition risks from:
- Fan and pump motors
- Solenoid valves
- Crankcase heaters
- Pressure switches
- Temperature sensors
- Control panels
- Electrical contactors
- Cable glands
- Junction boxes
- Hot refrigerant piping
- Static electricity
Selection, Installation and Maintenance
Correct selection and installation help the compressor deliver reliable cooling while preserving its hazardous-area protection.
- Calculate the required cooling duty at the actual operating conditions.
- Use approved performance data for the selected refrigerant.
- Confirm the required evaporating and condensing temperatures.
- Verify the compressor’s operating envelope.
- Confirm the electrical voltage, phase, and frequency.
- Check the exact hazardous-area zone and gas group.
- Verify the required temperature class and Equipment Protection Level.
- Use only the approved lubricant and refrigerant.
- Maintain the correct suction-gas superheat.
- Prevent liquid refrigerant from entering the cylinders.
- Design piping for reliable refrigerant and oil return.
- Install the crankcase heater where required.
- Connect oil-pressure and discharge-temperature protection.
- Use suitable high- and low-pressure safety controls.
- Mount the compressor upright on a strong, level base.
- Use vibration isolators and flexible connectors where necessary.
- Connect protective earthing and potential equalisation correctly.
- Inspect oil level, pressure, temperature, current, noise, and vibration regularly.
- Permit only qualified refrigeration and hazardous-area technicians to service the unit.
Certifications, Standards and Compliance
The official product page provides access to HEX-EM ATEX compressor documentation, operating instructions, and a declaration of incorporation.
Why Choose Atex Hub for ATEX Compressors?
Atex Hub supplies ATEX semi-hermetic compressors for process chillers, refrigeration plants, condensing units, heat pumps, and hazardous-area HVAC systems.
- Supplies ATEX Cooling Compressors across Kuwait, the UAE, Saudi Arabia, Qatar, Oman, Bahrain, Europe, Africa, and worldwide.
- Provides medium and high-capacity four-cylinder compressor models.
- Supports both 50 Hz and 60 Hz refrigeration projects.
- Assists with refrigerant and cooling-duty selection.
- Supports industrial process chillers and condensing units.
- Supplies service valves, heaters, sensors, pressure controls, and oil-management accessories.
- Supports chemical, oil and gas, petrochemical, marine, pharmaceutical, and food-processing applications.
- Provides replacement compressors and refrigeration components.
- Supports technical submittals and certification documentation.
- Supplies complete packaged hazardous-area cooling systems.
Frequently Asked Questions
1. What is the HEX-EM 300-76H compressor?
The HEX-EM 300-76H is a four-cylinder ATEX semi-hermetic reciprocating compressor for industrial refrigeration and cooling systems.
2. Is the ATEX Cooling Compressor suitable for Kuwait?
Yes. The ATEX Cooling Compressor in Kuwait can support correctly engineered hazardous-area chillers, condensing units, and process refrigeration systems.
3. What displacement does it provide at 50 Hz?
It provides approximately 75.83 m³/h at 50 Hz.
4. What displacement does it provide at 60 Hz?
It provides approximately 91.00 m³/h at 60 Hz.
5. How many cylinders does it use?
The HEX-EM 300-76H uses four reciprocating cylinders.
6. What is the maximum absorbed power?
Maximum absorbed power is approximately 33 kW at 50 Hz and 40 kW at 60 Hz.
7. What is the oil charge?
The compressor contains approximately 3.5 litres of lubricating oil.
8. What are the service-valve sizes?
The suction service valve is 54 mm, while the discharge service valve is 28 mm.
9. Does it include oil and temperature monitoring points?
Yes. It includes an oil sight glass, oil-pressure tap, oil differential-pressure sensor point, and discharge-temperature sensor connection.
10. Can Atex Hub supply compressor accessories?
Yes. Atex Hub supplies service valves, crankcase heaters, sensors, pressure controls, oil-management components, and electrical accessories.
Conclusion
The HEX-EM 300-76H ATEX Semi-Hermetic Compressor provides strong refrigerant compression for medium and large hazardous-area cooling systems.
Its four-cylinder construction delivers approximately 75.83 m³/h at 50 Hz and 91.00 m³/h at 60 Hz. The unit also features a 68 mm bore, 60 mm stroke, 3.5-litre oil charge, 185 kg net weight, 54 mm suction valve, and 28 mm discharge valve.
Oil-pressure monitoring, crankcase-heater provision, gas equalisation, service valves, and discharge-temperature sensing support reliable operation and planned maintenance.
For organisations seeking a dependable ATEX Cooling Compressor in Kuwait, the HEX-EM 300-76H supports process chillers, chemical plants, oil and gas facilities, refrigeration plants, pharmaceutical production, marine systems, and industrial HVAC equipment.
Atex Hub supplies these ATEX compressors across Kuwait, the GCC, Europe, Africa, and worldwide.
