Henry Catalogue 2010 - page 28

Industrial & Commercial Refrigeration Products
800.96.HENRY
HENRY
®
V A L V E
H24
PRESSURE RELIEF VALVES
Angle & Straight-Thru Types
Capacity in CFM:
To convert pounds of air per minute to standard cubic feet per minute, multiply by 13.3.
* Suitable for Ammonia
Relief Valves in the types and sizes shown are constructed in accordance with the
requirements of the ASME. These valves are also approved by many local refrigeration
and air conditioning codes in the USA and Canada for relief of excess pressure. In
addition, these valves are stamped with ASME- UV symbol and NB to indicate National
Board certification of capacities between 150 P.S.I. and 450 P.S.I., with the exception of
the 5250 series which are certified for a pressure range of 200 P.S.I.- 500 P.S.I.
Whenever conditions permit, it is advisable to have the relief valve pressure setting
(which must not exceed the design working pressure of the vessel) at least 25 percent
higher than the normal maximum operating pressure for the refrigerant used.
Features:
Catalog
Number
Pressure Settings—PSIG
450
500
550
600
650
675
5233A
N/A
31.2
34.2
37.2
40.3
41.8
5234A
N/A
31.2
34.2
37.2
40.3
41.8
5235A
N/A
31.2
34.2
37.2
40.3
41.8
HIGH PRESSURE RELIEF VALVES UP TO 675 PSIG
National Board Certified Relief Valve Capacity Ratings (pounds of air per min.)
Catalog
Pressure Settings—PSIG
Number
150
235
300
350
400
450
5230
5.0
7.6
9.6
11.2
12.7
14.3
5231
5.0
7.6
9.6
11.2
12.7
14.3
526E
5.0
7.6
9.6
11.2
12.7
14.3
5250A-1/2
N/A
29.0
36.5
42.4
48.2
54.0
5250-1/2
N/A
29.0
36.5
42.4
48.2
54.0
5252-3/4
N/A
29.0
36.5
42.4
48.2
54.0
*5350-1/2
N/A
29.0
36.5
42.4
48.2
54.0
*5352-3/4
N/A
29.0
36.5
42.4
48.2
54.0
5244-3/4
33.2
50.5
63.8
73.9
84.1
94.3
5244-1
33.2
50.5
63.8
73.9
84.1
94.3
* 5344-3/4
33.2
50.5
63.8
73.9
84.1
94.3
* 5344-1
33.2
50.5
63.8
73.9
84.1
94.3
5246A
70.5
107.2
135.2
156.8
178.4
199.9
5246A-1-1/4
70.5
107.2
135.2
156.8
178.4
199.9
*5345A
70.5
107.2
135.2
156.8
178.4
199.9
*5346A-1-1/4
70.5
107.2
135.2
156.8
178.4
199.9
Catalog
Number
Pressure Settings—PSIG
150
250
300
5600
30.9
49.9
59.4
5601
35.8
57.7
68.7
5602
35.8
57.7
68.7
5603
37.5
60.4
71.9
5604
72.0
116.1
138.1
* See Page H22 for Standard Pressure Settings *
1...,18,19,20,21,22,23,24,25,26,27 29,30,31,32,33,34,35,36,37,38,...119
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