Installation
Fluid Pressure Relief Valve
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Some systems may require installation of a | Overpressurization also can occur if the | ||
pressure relief valve at the pump outlet to pre- | Husky pump is used to feed fluid to a piston | ||
vent overpressurization and rupture of the | pump, and the intake valve of the piston pump | ||
pump or hose. | does not close, causing fluid to back up in the | ||
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| outlet line. |
Thermal expansion of fluid in the outlet line |
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can cause overpressurization. Thermal | FIG. 6 shows Fluid Pressure Relief Kit 238428 | ||
expansion can occur when using long fluid | for aluminum pumps. Use Fluid Pressure | ||
lines exposed to sunlight or ambient heat, or | Relief Kit 112119, not shown, for plastic | ||
when pumping from a cool to a warm area (for | pumps. | ||
example, from an underground tank). |
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3 | 1 | Apply thread sealant on threaded connec- |
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| tions and install kit between fluid inlet and |
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| outlet manifolds. |
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| 2 | Connect fluid inlet line in one of the |
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| optional ports. |
| 3 | Connect fluid outlet line in one of the |
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| optional ports. |
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Pressure
Relief Kit 1
2
ti14214a
FIG. 6. Fluid pressure relief kit (Aluminum pumps only, 1050A models)
312877C | 13 |
