   | Water Cooled Screw Chillers Air Cooled Screw Chillers Heat Exchangers Chillers for Low Temperature |
 |
Products -» Hanbell Screw Compressors
Hanbell Screw Compressors
| ||
| RC2 Series | Refrigerant | Capacities Range & Special Features |
| RC2 – A | R134a |
|
| RC2 – B | R134a, R22, R407C, R404A, R507A |
|
| RC2 - AF | R134a |
|
| RC2 - BF | R134a, R22, R407C, R404A, R507A |
|
| Note: All design calculations based on 3 degree C evaporating temperature and 38 degree C condensing temperature | ||
Key Technical Features of HANBELL RC-2 Series Semi-hermetic screw compressors are:
High Efficiency Motor
- Available for part winding start or star delta start
- Custom-made for specified voltage and power frequency
- Two options A & B, according to operating conditions and type of refrigerant
- Optimum design of slot inside motor casing
- Patented motor cooling design in ducts of refrigerant flow encompassing stator that provides the best dissipation of heat
- Sliding fit stator for easier installation and removal
Economiser operation with floating ECO Port
- Enhance cooling capacity as well as energy efficiency
- Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compressor casing
- Effective under partial and full load
- Position of medium pressure will vary with injection port in slide valve
- 5-to-6 rotor profile patented in US, UK, Japan, Taiwan and China.
- Designed according to characteristics of refrigerants
- Hyper Volume efficiency and minimum clearance
- Flange on Solenoid coil easy installation
- 3-step / 4-step or continuous (33%~100%/25%~100%) capacity control system
- Interchangeable by varying control logic without modification of solenoid valves
- 11 High quality bearings (radial and axial)
- Additional two bearings for backward rotation
- Alpha balance piston against axial thrust
- Heavy duty design
- Resulting in longer bearing life compared to traditional 9 bearing design
- Built-in Volume ratio (Vi ~ 2.2, 2.6, 3.0, 3.5)
- Exactly matching compression ratio without over or under compression
- Suitable for separate applications like refrigeration, water cooled chiller, air cooled chiller and heat pump
- Detachable demister for cleaning
- Finer size of mesh
- Low pressure drop and oil carry over
- Motor Temperature Sensor
- Built in PT 100 (1000 Ohms) installed in motor winding
- Accurately reflect corresponding resistance (convert to temperature of motor)
- Controller can precisely regulate liquid injection and refrigerant volume accordingly.
- Discharge Temperature Sensor and Motor Temperature Thermistor
- Totally integrated
- Effectively protects compressor in advance when abnormal alarm occurs
- Liquid Injection and Oil Cooler Function (Port and Stop Pin)
- Both available on every HANBELL screw compressor
- Oil Level and Flow Switch
- Ensure sufficient lubricant in compressor for better lubrication, capacity control, cooling and sealing
- Heater (150 W & 300 W)
- Increases lubricants flow ability when compressor restarts after a long term stop
- Pressure Differential Port
- Easily detects clog in cartridge of oil filter
- Assure smooth circulation of oil system
- Production by SOP conformed to major quality standards
- Approved by ISO 9001-2000, UL, CE (PED), Electronic Apparatus for Explosive atmospheres (EX, China), Lloyd’s Register (Vessel), Symbol of Excellence in Taiwan
- Low noise level and minute vibration
- Fewer moving parts in screw compressor than reciprocating compressors
- Compact geometry for layout
- No foundation required
HANBELL Semi hermetic Screw Compressor for low (minus) temperature Applications
LA Series low-temperature refrigerant screw compressor has 25 models. This series is usually used in low temperature (up to – 50 degree C in single stage operation) systems.
Features
- Especially suitable for thermal storage and low temperature application
- Innovative screw rotor profile design especially made for low temperature application
- Adjustable volume ratio control(Vi=2.2~4.8)
- Equipped with floating economizer port and it is quite useful in low temperature working condition because of the economizer’s obvious effect.
- Redesigned motor stator slot to suit for low temperature application
- External oil separator design and application
- 25 models with capacity densely covered between 25 and 500 USRT. More models establish a match between demand and supply of capacity
- Available for part winding start or star delta start
- Custom-made for specified voltage and power frequency
- Design according to high-compression ratio application and type of refrigerant.
- Patented motor cooling design in ducts of refrigerant flow encompassing stator that provides the best dissipation of heat
- Enhance cooling capacity as well as energy efficiency
- Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compressor casing
- Effective under partial and full load
- Position of medium pressure will vary with injection port in slide valve
- 5-to-6 rotor profile patented in US, UK, Japan, Taiwan and China.
- Designed according to characteristics of refrigerants
- Hyper Volume efficiency and minimum clearance
- Volume ratio (Vi) could be adjusted continuously between 2.2 and 4.8 according to operation condition for LA~280
- Eliminate loss of work due to over r under compression
- Adjusting by turns of rod corresponding to specific Vi
- Universal to refrigerant R22, R404A, R507A
- Compressor designed for low-temperature application with SST as low as minus 50 degree C
- Flange on Solenoid coil easy installation
- 3-step / 4-step or continuous (33%~100%/25%~100%) capacity control system
- Interchangeable by varying control logic without modification of solenoid valves
- High quality bearings (radial and axial)
- Additional two bearings for backward rotation
- Heavy duty design
- Motor Temperature Sensor
- Built in PT 100 (1000 Ohms) installed in motor winding
- Accurately reflect corresponding resistance (convert to temperature of motor)
- Controller can precisely regulate liquid injection and refrigerant volume accordingly.
- PTC Discharge Temperature Sensor and Motor Temperature Thermistor
- Totally integrated
- Effectively protects compressor in advance when abnormal alarm occurs
- Additional Cooling (Optional)
- Oil cooler, oil injection to compression chamber, liquid injection to compression chamber and liquid injection to motor
- Combination of above functions according to operation conditions.
- Oil Flow Switch and Oil Return Solenoid Valve
- Ensure sufficient lubricant in compressor for better lubrication, capacity control, cooling and sealing
- External Oil Separator
- Low oil carry-over
- Finest demister with negligible pressure drop
- Production by SOP conformed to major quality standards
- Approved by ISO 9001-2000, UL, CE (PED), Electronic Apparatus for Explosive atmospheres (EX, China), Lloyd’s Register (Vessel), Symbol of Excellence in Taiwan
- Low noise level and minute vibration
- Fewer moving parts in screw compressor than reciprocating compressors
- Compact geometry for layout
- No foundation required
| Series | Refrigerant | Range |
| LA Series | R22 | 14 TR to 280 TR |
| LA Series | R404A | 14 TR to 260 TR |
| LA Series | R507A | 14 TR to 250 TR |
| Note: All design calculations based on -10 degree C evaporating temperature and 40 degree C condensing temperature | ||
HANBELL– Semi-hermetic Open Screw Compressors
These compressors are presently under trials and would be officially launched in March 2008. COMER open screw compressors are being specifically designed for Ammonia use yet at a cost similar to the reciprocating technology compressors. Contact Flamingo Chillers for further details
Resource