Roma Oil-free screw air compressor water injected at variable speed

Compression technology

The compressors belonging to the range ROMA have fewer moving parts if compared to compressors of other brands (especially the two-stage dry ones), plus they run at very low speeds and with balanced loads on the bearings. As a consequence, they have a longer life and lower operating costs. The maximum flow temperature is about 60 °C. This determines a compression that is very close to the ideal one, that is to say isothermal.

The range ROMA has great advantages if compared to the traditional “oil-free” compression technology. As a matter of fact, it does not need oil nor an air/oil separator and, as a consequence, it has no transmission gears, no oil pump nor oil filters. In addition, the single screw compression with two satellites has balanced compression loads and, therefore, avoids excessive stresses on the bearings.

Technical characteristics

ROMA SERIES OIL-FREE SCREW AIR COMPRESSORS WATER INJECTED AIR COOLED (A) - WATER COOLED (W) AT VARIABLE SPEED

Model	Nominal Power kW - hp	Maximum Pressure (bar)	Free Air Delivery m3/min	Air Outlet Diameter (inch)	Cooling water flow (W models) m3/h	Water flow (A/W models) l/min	Noise level dB	Weight kg	Dimensions mm
ROMA 5,5-10 A/W INV	5,5 - 7,5	10	0,2 - 0,63	3/4"	1,5	10	57	460	800x800x1200
ROMA 7,5-10 A/W INV	7,5 - 10	10	0,3 - 0,84	3/4"	2	10	57	510	800x800x1200
ROMA 11-10 A/W INV	11 - 15	10	0,45 - 1,47	1"	2,5	26	60	620	1200x855x1335
ROMA 15-10 A/W INV	15 - 20	10	0,65 - 1,89	1"	3,5	26	60	670	1200x855x1335
ROMA 18,5-10 A/W INV	18,5 - 25	10	0,9 - 2,94	1"	4	30	63	730	1400x1010x1340
ROMA 22-10 A/W INV	22 - 30	10	0,97 - 3,15	1"	5	40	63	780	1400x1010x1340
ROMA 30-10 A/W INV	30 - 40	10	1,25 - 4,2	1 1/2"	7	40	66	1150	1650x1180x1505 (A) 1500x1080x1300 (W)
ROMA 37-10 A/W INV	37 - 50	10	1,60 - 5,25	1 1/2"	9	90	66	1200	1650x1180x1505 (A) 1500x1080x1300 (W)
ROMA 45-10 A/W INV	45 - 60	10	1,91 - 6,31	1 1/2"	10	100	68	1490	1800x1360x1670
ROMA 55-10 A/W INV	55 - 75	10	2,6 - 8,4	1 1/2"	12	100	69	1570	1800x1360x1670
ROMA 75-10 W INV	75 - 100	10	3,4 - 10,5	1 1/2"	18	120	72	1750	1800x1360x1670
ROMA 90-10 W INV	90 - 120	10	4,3 - 13,12	1 1/2"	20	120	73	2450	2200x1150x1800
ROMA 110-10 W INV	110 - 150	10	5 - 16,8	2"	24	120	75	2580	2200x1150x1800
ROMA 132-10 W INV	132 - 180	10	6 - 19,95	2"	30	120	75	2700	2200x1150x1800

Features

WIDE RANGE

The ROMA series compressors are available in a wide range of powers (from 5.5 to 132 kW) and pressures (8 and 10 bar) and they are alla configured in variable speed version (INV). The air delivery ranges from 0.2 to 23 m3/min.

PLUG & PLAY

The installation of this screw compressor package is extremely simple. No foundations are required. It is sufficient to place the unit in the foreseen site that must be level ant to do the following connections: • Electrical connection from the supply to the electric panel on the unit itself • Pneumatic connection from the unit to the air receiver or to the distribution line • Hydraulic connection to a water supply. The water can be potable. In any case filtration to maintain suitable hardness and electrical conductibility can be supplied as optional

CONTROLLER

The control and regulation system used in this unit elaborates the pressure signals received by the sensor included inside converting them into signals that modify the free air capacity. With a correct programming it is assured a stabile flow of compressed air to match the variable demand with a minimum pressure variation. The electronic panel is capable of: • To keep under control of all parameters included in the unit • To modify the programmed conditions as required (within the pre-set limits) • To determine maintenance requirements • To program the stop and start of unit in accordance to the requirements. There are in the electronic panel itself luminous displays to visualise the following: • One display to indicate the operating pressure • One display to indicate the operating temperature • Alarm messages • State messages • Maintenance message There is also visible: • Start push button • Delayed stop pushbutton • Emergency stop pushbutton • It is also included a programming button that allows to the user to modify the operating parameters of the compressor itself (within the pre-set limits) to adapt them to the eventual specific requirements.