Brochure

Catalog CIC-2003-1/US
Industrial Refrigeration Products: Safety Relief Valves
Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
413
Industrial
Refrigeration
Products
How to Order
Safety relief valves and manifolds can be specified by using the symbols in the chart below to develop a model number. Select
only those symbols that represent the features desired, and place them in the sequence indicated by the example at the top of the
chart.
Type H, M
MANIFOLD FOR
SINGLE VALVE ONLY TWO VALVES
Connections Capacity Connections
Companion Relief
Mounting Valve Pressure Lbs. Manifold Relief
Valve Flange Outlet Setting Per Min SCFM Inlet Valve
Type (Inlet) FPT (psig) Air Air Bottom Outlet
50 23 302
75 32 422
100 41 541
125 50 661 Type M2
½" Port 1" 150 60 780 Manifold 1"
H2 Provides FPT 175 69 899 Provides FPT
¾" FPT 200 78 1019 ¾" FPT
225 87 1138
250 96 1257
275 105 1377
300 114 1496
50 38 498
75 53 694
100 68 890
125 83 1087 Type M3
¾" Port 1¼" 150 98 1283 Manifold 1¼"
H3 Provides FPT 175 113 1479 Provides FPT
1" FPT 200 128 1676 1" FPT
225 143 1872
250 158 2068
275 173 2265
300 188 2461
50 57 744
75 79 1037
100 101 1330
125 124 1624 Type M4
1" Port 1½" 150 146 1917 Manifold 1½"
H4 Provides FPT 175 169 2211 Provides FPT
1¼" FPT 200 191 2504 1½" FPT
225 213 2798
250 236 3091
275 258 3385
300 281 3678
50 95 1242
75 132 1732
100 170 2222
125 207 2712 Type M4
1¼" Port 150 244 3202 Manifold 2"
H5 Provides 175 282 3692 Provides FPT
1¼" FPT 2" 200 319 4182 1½" FPT
225 357 4672
250 394 5162
275 431 5653
300 469 6143
Type (See Table Above)
H2 H2 Valve
H3 H3 Valve
H4 H4 Valve
H5 H5 Valve
M2 M2 Manifold
M3 M3 Manifold
M4
▲▲
▲▲
▲ M4 Manifold
▲ ▲
▲ ▲
▲ Fits H4 & H5 Valves
Inlet Flange
X Less Flange
1
★★
★★
★ Male Companion Flange
2
▲▲
▲▲
▲ Female Companion Flange
3
▲▲
▲▲
▲ Male plus Female
Companion Flanges
★★
★★
★ For Single Valves only.
▲▲
▲▲
▲ For Mainfolds only.
◆ Standard settings shown. Other
settings between 50 and 300 PSI
are available at additional cost.
Inlet Connection Pressure
Type Flange Size Setting
Specifications
Note:
Pressure settings
and capacities
apply only when
the valve is
discharging to
atmospheric
pressure.
Connection Size
0 Less Flange
2 3/4" FPT (H2 only)
3 1" FPT (H3 only)
4 1¼" FPT (H4 & H5 only)
5 1½" FPT (H4 & H5 only)
H2 1 1 – 100
Pressure Setting◆
Blank Manifold
50 50 PSI 3.5 Bar
75 75 PSI 5.2 Bar
100 100 PSI 6.9 Bar
125 125 PSI 8.6 Bar
150 150 PSI 10.3 Bar
175 175 PSI 12.1 Bar
200 200 PSI 13.8 Bar
225 225 PSI 15.5 Bar
250 250 PSI 17.2 Bar
275 275 PSI 19.0 Bar
300 300 PSI 20.7 Bar
Technical Information and How to Order