• Amco Engineering Works

Suction Strainers

Suction Strainer Elements are designed for installation into suction lines of pumps. Extra caution should be taken to ensure that the suction elements are always mounted below the minimum oil level of the reservoir. Standard models have nominal filtration ratings of 74 or 125 microns. The suction strainer elements can also be supplied with a bypass valve to reduce high pressure drops caused by contaminated elements or high viscosity fluids during cold starting. The bypass valve opens at 3 psi. For best results, suction strainer elements should be sized for clean element pressure drops off no higher than 0.5-.07 psi. These are manufactured using stainless steel wire screen media. Suction strainer elements are only intended to protect hydraulic pumps against catastrophic failure caused by coarse contaminants. Suction strainer elements should be inspected and cleaned regularly. These elements should not be used as the only filtration elements in a hydraulic system. Pressure filters and return line filters, with reasonable dirt holding capacity, must be installed to provide protection against component damage caused by fine contaminants.