Low Pressure Two Stage Screw Compressor LH/LHPM Series
Working Power: 55~250 KW (75~335 HP)
Free Air Delivery: 4.5~62 m³/min (159~2190.5 cfm)
Working Pressure: 4.5/5.5 bar (65/79 psig)
1 Low power, high energy saving
Almost 10% less power consumption
compared to equal size single stage screw compressor.
2 Near isothermal compression
AFE31 represents isothermal compression
AC31 is area of standard compression
AB, BF, FD, 31
is area of two stage compression
Two stage
compression saving area is BCDF comparison with standard compression
After first
grade compression, the volume of compressed air become smaller, then the second
compression could use smaller rotor, which reduce the compression leakage.
It reduces the
compression ratio and the leakage.
3
Heavy Duty Air Filter
Double
filter core, improved filtration, long service life, low suction
resistance, improved air inlet efficiency.
Made
for dusty environment like: cement, textile, fiber, chemical industry, etc.
4
Oil / air tank (125HP-300HP)
Large capacity oil tank, reduced lubricating
oil foaming.
Tank cover fitted with rotating
aid to ease air/oil separator
Large separator, better
separation, lower pressure drop, improved efficiency.
Double oil separator core for 340HP and
above, better oil separation.
Oil carry-over less than 3PPM over
4000 run hours
① Premium Efficiency Drive Motor
●
Premium efficiency Totally Enclosed Fan Cooled
(TEFC) IP54/IP55 motor (Class F insulation) protects against dust and chemicals
etc.
●
Long-term stable operation even in harsh
environments up to 55℃ (131℉)
② Innovative air end
● New improved
rotor profile for low pressure application
● High quality bearings
●
Designed to give 20 years of reliable operation
③ Inlet filter
● Nano scale Heavy duty
● Filtration
efficiency up to 99.9%
● Particles below 0.3 micron
● Differential pressure indicator
● 2,000 hours service intervals
④ Cooling fan
● VSD control
● Compact
● Low noise level
● High capacity for optimized cooling
● Low power consumption
⑤ Classic cooler design
● Combined oil and after cooler
● Anti corrosion surface coatings
● 20% oversized
● After cooler (optional)
⑥ Innovative vectorial inverter
● CE/UL Certification
● EMC C3 and C2 requirements
● Wide voltage design
● Built-in DC reactor
● Independent cooling air duct
⑦ Plot® Touch controller
● 7.0 inch full color touch LCD screen
●Protection against overloading, overpressure,
overheating, phase unbalance plus 13 more protections.
● Modbus
RTU
⑧ Inlet valve
● Optimizes inlet flow
● No blow-off losses
● Maintenance free pipe design
● Large suction area, designed for low pressure application
⑨ Oil filter
● High efficiency oil filter,
longer air end life
● Oil particles down to 0.1 micron
● Smooth and well-lubricated
oil system
● Multiple oil filter
combination, stable operation
⑩ Oil gas tank & Built-in separation system
●Oversized air/oil tank, improved cyclone effect
and separation process.
● Oil carry over < 3 ppm.
● System pressure < 0.02 MPa
⑪ Electrical control cabinet
●
Siemens core electrical components.
⑫ All-steel internal pipe system
● All steel internal pipe work, longer life, higher
safety
● Lower pressure drop
PRODUCT PARAMETER
Note:
Data conforms to ISO 1217 (Pressure 1 bar (a), Temperature 20 deg C, R.H 0%)
Standard voltage is 380V/50HZ/3P, other voltage is available.
Alpine/high altitude, high temperature, high humidity, high dust loads or other adverse working conditions will require specialized custom designs. These are available on special request.
We reserve the right to make changes and improvements to the design and appearance.
Specifications may change without prior notice.
