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TABLE 1: J COMPRESSOR RATINGS - AMMONIA

 
SUCTION o F
PSIG		 -15o
6.2#		 -10o 9.0# -5o
12.2#		 0o
15.7#		 5o
19.6#		 10o
23.8#		 15o
28.4#		 20o
33.4#		 25o
39.#		 30o
45.#		 35o
51.6#
DISCH PSIG / o F
J-52
2-CYLINDER
@1200 RPM		 135#
78.7o		 TR
BHP		 15.3
27.7		 18.3
29.6		 21.8
31.4		 25.6
33.4		 29.8
35.1		 34.2
36.6		 39.0
37.6		 44.2
38.4		 49.9
38.9		 55.7
39.2		 60.3
40.5
155#
86.1o		 TR
BHP		 14.7
29.2		 17.7
31.3		 21.0
33.4		 24.8
35.2		 28.6
37.0		 33.0
38.6		 37.7
40.1		 42.9
41.3		 48.4
42.4		 54.5
43.0		 59.1
44.9
165#
89.6o		 TR
BHP		 14.1
29.8		 17.0
32.2		 20.4
34.4		 24.1
36.6		 28.0
38.6		 32.3
40.2		 36.7
41.8		 41.8
43.2		 47.4
44.5		 53.4
45.0		 58.0
47.0
175#
93.0o		 TR
BHP		 13.9
30.4		 16.8
32.7		 20.1
34.9		 23.6
37.0		 27.5
39.0		 31.6
40.8		 36.0
42.6		 41.1
44.1		 46.4
45.5		 52.3
46.6		 57.0
47.7
185#
96.2o		 TR
BHP
16.5
33.2		 19.8
35.5		 23.3
37.6		 27.2
39.7		 31.4
41.6		 35.4
43.4		 40.4
45.2		 45.8
46.7		 51.6
47.9		 55.7
49.2
205#
102.3o 		TR
BHP



25.8
42.5		 29.8
44.2		 34.2
46.2		 39.0
48.0		 44.2
49.8		 50.2
51.4		 54.5
52.7
J-54
4-CYLINDER
@1200 RPM		 135#
78.7o		 TR
BHP		 30.6
55.4		 36.6
59.3		 43.6
62.9		 51.3
66.8		 59.6
70.1		 68.4
73.2		 78.0
75.3		 88.5
76.8		 99.8
77.8		 111.5
78.3		 120.6
79.1
155#
86.1o		 TR
BHP		 29.5
58.3		 35.4
62.6		 42.0
66.7		 49.6
70.5		 57.3
74.0		 66.1
77.3		 75.4
80.1		 85.9
82.6		 96.8
84.7		 108.9
86.0		 118.2
87.9
165#
89.6o		 TR
BHP		 28.3
59.7		 34.1
64.4		 40.8
68.8		 48.2
73.1		 56.1
77.1		 64.6
80.5		 73.5
83.6		 83.6
86.4		 94.8
89.0		 106.8
90.1		 116.0
92.0
175#
93.0o		 TR
BHP		 27.9
60.8		 33.7
65.4		 40.2
69.8		 47.2
74.1		 55.1
78.0		 63.3
81.7		 72.0
85.3		 82.1
88.2		 92.8
91.0		 104.6
93.1		 114.1
95.2
185#
96.2o		 TR
BHP
33.0
66.4		 39.6
71.0		 46.6
75.3		 54.4
79.4		 62.4
83.2		 70.7
86.9		 80.8
90.4		 91.5
93.4		 103.2
95.8		 111.4
98.3
205#
102.3o 		TR
BHP



51.7
85.0		 59.6
88.3		 68.4
92.4		 78.0
96.1		 88.5
99.7		 100.5
102.8		 109.1
105.5
J-56
6-CYLINDER
@1200 RPM		 135#
78.7o		 TR
BHP		 45.9
83.1		 54.9
88.9		 65.4
94.4		 77.0
100.2		 89.4
105.2		 102.6
109.8		 117.0
113.0		 132.8
115.2		 149.7
116.7		 167.2
117.4		 180.9
118.6
155#
86.1o		 TR
BHP		 44.2
87.4		 53.1
93.9		 63.0
100.0		 74.4
105.8		 86.0
111.0		 99.2
116.0		 113.1
120.2		 128.8
123.9		 145.2
127.0		 163.4
129.0		 117.3
131.8
165#
89.6o		 TR
BHP		 42.4
89.6		 51.2
96.6		 61.2
103.2		 72.3
109.6		 84.2
115.6		 96.9
120.8		 110.2
125.4		 125.4
129.6		 142.2
133.5		 160.2
135.2		 174.0
139.5
175#
93.0o		 TR
BHP		 41.8
91.2		 50.6
98.1		 60.3
104.7		 70.8
111.2		 82.6
117.0		 94.9
122.6		 108.0
127.9		 123.2
132.3		 139.2
136.5		 156.9
139.6		 171.0
143.5
185#
96.2o		 TR
BHP
49.5
99.6		 59.4
106.5		 69.9
113.0		 81.6
119.1		 93.6
124.8		 106.0
130.4		 121.2
135.6		 137.2
140.1		 154.8
143.7		 167.1
147.4
205#
102.3o 		TR
BHP



77.6
127.5		 89.4
132.4		 102.6
138.6		 117.0
144.2		 132.8
149.6		 150.8
154.2		 163.6
158.2

NOTES:

  1. Maximum motor HP, V-belt drive is 125 HP
  2. Maximum motor HP, direct drive is 200 HP
  3. Maximum compressor ratio, continuous duty is 8:1
  4. Maximum pressure differential is 175 PSIG
  5. Maximum discharge temperature is 300o F
  6. Maximum suction superheat is 20o F
  7. Crankcase oil temperature range is 110o F to 130o F
  8. For speeds below 1200 RPM, Capacity and BHP are decreased proportionately
  9. Do not extrapolate tables.
 

 

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Copyright © 2006 Howe Corporation   Rev. 07/03/08