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Pressure Relief Grease Fittings
Pressure Relief Grease Fittings are commonly used on gear box housings and bearings, (such as king pins, universal joints, etc.), where excessive lubricant pressures are not desirable. These safety valves open at pre-determined pressures shown in the table below and can be used with either oil or grease. Pressure Relief Grease Fittings are also referred to as Pressure Relief Zerk Fittings, Pressure Relief Lubrication Fittings, and Pressure Relief Grease Zerks.
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| PRESSURE RELIEF GREASE FITTINGS * PRESSURE RELIEF GREASE FITTINGS * PRESSURE RELIEF GREASE FITTINGS | ||||||||||
| SAE Number | Description |
Min. psi | Max. psi | FIG |
A |
B |
X |
Alemite
|
Lincoln
|
|
| H-200-317400 | 1/8"-PTF |
1/4 |
1 |
10 |
1/2" |
19/64" |
7/16" |
317400 |
N/A |
|
| H-200-47200 | 1/8"-PTF |
1 |
5 |
10 |
1/2" |
19/64" |
7/16" |
47200 |
N/A |
|
| H-200-5677 | 1/8"-PTF.
|
1 |
5 |
10 |
1/2" |
19/64" |
7/16" |
N/A |
5677 |
|
| H-200-47640 | 1/8"-PTF.
|
7.5 |
15 |
10 |
1/2" |
19/64" |
7/16" |
47640 |
N/A |
|
| H-200-323060 | 1/8"-PTF. |
15 |
25 |
10 |
1/2" |
19/64" |
7/16" |
323060 |
N/A |
|
| H-200-5678J | 1/8"-PTF.
|
7.5 |
15 |
10 |
12.7 |
7.1 |
7/16" |
N/A |
5678 |
|
| H-200-47100 | 1/8"-PTF.
|
45 |
80 |
10 |
1/2" |
19/64" |
7/16" |
47100 |
N/A |
|
| H-200-50500 | 1/8"-PTF. |
400 |
650 |
10 |
1/2" |
19/64" |
7/16" |
50500 |
N/A |
|
| H-300-47200 | 1/4"-PTF.
|
1 |
5 |
10 |
43/64" |
27/64" |
39/64" |
N/A |
N/A |
|
| K-38-321839 | 3/8"
DRIVE. |
1 |
5 |
11 |
1/2" |
N/A |
N/A |
321839 |
N/A |
|
| H-200-338382 | 1/8"-PTF. LEAKPROOF |
80 |
140 |
12 |
9/16" |
11/32" |
7/16 |
338382 |
N/A |
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