Hitachi NEXT Series User Manual

69
8. STANDARD COMPONENTS AND SUBSYSTEMS [Air/Oil/Water Flow]
Flow diagram (Fixed speed type)
Air-Cooled
Legend of the Diagram
Compressor Air Flow
1 1st-Stage Airend
2 2nd-Stage Airend
3 Gear Case
4 Step-up Gear
5 Main Motor
6 Intercooler
7 Check Valve
8 Aftercooler
9 Air Relief Valve
10 Discharge Port
11 Check Valve
13 Orifice
14 Drain Solenoid
15 Y strainer
16 Drain trap
17 Demister
18 Motorized Isolation Valve
19
Hi-Precooler (only for 125 psi (0.86 MPa type))
20 Drain separator
Capacity Control & Blowoff Air Flow
21 Air Intake Filter
22 Suction Throttle Valve
23 Blowoff Valve
24 Blowoff Silencer
Oil Flow
31 Oil Strainer
32 Oil Pump
33 Oil Relief Valve
34 Oil Cooler
35 Oil Filter
36 Temperature Control Valve
38 Oil Drain Valve
39 Oil Mist Remover
Air Flow and Other
51 Fan Motor
52 Enclosure
53
Air Intake Duct
54 Cooling fan
Legend of Sensors and Switches
Symbol Part name
PS2
Pressure Sensor (discharge air pressure)
PS4 Pressure Sensor (oil pressure)
PS1 Pressure Sensor (interstage pressure)
TH2 Temperature Sensor (2nd-stage in)
TH4 Temperature Sensor (1st-stage out)
TH3 Temperature Sensor (2nd-stage out)
TH5 Temperature Sensor (oil)
MOHR
Thermostat (for main motor
bearing temperature)
63SV
Pressure Differential Sensor (For
suction filter clogging detection)
14
15
13
Air exhaust
Air exhaust Air exhaust
23
24
22
9
21
53
32
52
11
PS2
4
3
5
33
31
TH3
1
PS1
TH4
TH5
63SV
Air intake for
main motor
Air intake for
compressed air
Oil drain
Oil drain
38
39
13
35
14
PS4
Intercooler
condensate
drain
15
2
Aftercooler condensate drain
Control air for OMR
Cooling air flow
Compressed air flow Lubricating oil flow
MOHR
17
36
19
6
7
8
34
51
TH2
54
20
10
18
M
Compressed
air discharge
Compressed Air Flow and Oil Flow

Hitachi NEXT Series Specifications

General

Brand	Hitachi
Model	NEXT Series
Category	Air Compressor
Language	English