F
OR
M
ODELS
: JGI, JGM, JGN, JGP
AND
JGQ
S
ECTION
1 - D
ESIGN
S
PECIFICATIONS
& D
ATA
PAGE 1-3
Specifications
T
ABLE
1-1 JGI, JGM & JGP F
RAME
S
PECIFICATIONS
MODEL
a
a. For more information, refer to the Electronic Data, available in the Ariel Performance Program.
JGI/1
JGM/1
JGM/2
JGP/1
JGP/2
Stroke, in. (mm)
3-1/2 (89)
3-1/2 (89)
3-1/2 (89)
3 (76)
3 (76)
Maximum Allowable Speed
b
, RPM
b. Maximum allowable speed is the highest (potential) speed at which the compressor frame design
will permit continuous operation. Compressor frame data plate "Frame Rated Speed (RPM)" is
application specific, and may be lower than Maximum Allowable Speed. The lower of the Frame
Rated Speed, lowest cylinder rated (RPM) or driver rated speeds is not to be exceeded. If a JGI is to
be run at higher speeds, the skid must have adequate mass for the vertical forces.
800
1500
1500
1800
1800
Minimum Speed
c
, RPM
c. Minimum Speed is the minimum frame speed to provide adequate oil flow to the compressor bear-
ings.
400
750
750
900
900
Average Piston Speed
d
, FPM (m/s)
d. Average piston speed as is based on the maximum allowable speed (RPM) of the frame. The cylin-
der data-plate rated speed (RPM) or frame rated speed may be less, resulting in a lower piston
speed rating.
To 467
(2.37)
To 875
(4.45)
To 875
(4.45)
To 900
(4.57)
To 900
(4.57)
Number of Throws
1
1
2
1
2
Horsepower, to hp (kW)
55 (41)
84 (63)
168 (125)
85 (63)
170 (127)
Height - Bottom to Crankshaft Cen-
terline, in. (mm)
10.250
(260.35)
9.250
(234.95)
9.250
(234.95)
9.250
(234.95)
9.250
(234.95)
Connecting Rod Centerline To
Centerline, in. (mm)
8.250
(209.55)
8.250
(209.55)
8.250
(209.55)
8.250
(209.55)
8.250
(209.55)
Maximum Width with
Cylinders, in. (m)
26
(0.66)
62
(1.58)
83
(2.11)
62
(1.58)
83
(2.11)
Maximum Length, in. (m)
31 (0.79)
35 (0.89)
35 (0.89)
35 (0.89)
35 (0.89)
Overall Height, in. (m)
53 (1.35)
w/cylinder
17 (0.43) To Top of Aluminum Cover
Approximate Weight
with Cylinders, lb. (kg)
1300
(590)
1400
(640)
2000
(900)
1400
(640)
2000
(900)
Oil Pump Flow Rate
e
, GPM (L/s)
e. Flow rate is based on the maximum allowable frame speed rating and 180°F (82°C) oil.
4 (0.25)
4 (0.25)
4 (0.25)
5 (0.32)
5 (0.32)
Oil Heat Rejection, BTU/hr (kW)
5600 (1.6)
8400 (2.5)
8400 (2.5)
16,800 (4.9)
16,800 (4.9)
Sump Capacity, US gallons (L)
4 (15)
2.5 (9)
2.5 (9)
2.5 (9)
2.5 (9)
Piston Rod Diameter, in. (mm)
1.125 (28.58)
Internal Rod Load - Double Acting:
Compr Tension, lb
f
(kN)
12,000 (53)
12,000 (53)
12,000 (53)
12,000 (53)
12,000 (53)
Tension, lb
f
(kN)
6000 (27)
6000 (27)
6000 (27)
6000 (27)
6000 (27)
Compression, lb
f
(kN)
7000 (31)
7000 (31)
7000 (31)
7000 (31)
7000 (31)
Internal Rod Load - Single Acting:
Tension, lb
f
(kN)
6000 (27)
6000 (27)
6000 (27)
6000 (27)
6000 (27)
