Strainers Strainers are always recommended for application on the inlet side of the meter to help protect against damage caused by foreign particles in the liquid: e.g., rust, pipe scale, and burrs from new piping installations. Although strainers extend the service life of the meter once in operation, systems should always be flushed and completely free of foreign material before meter installation and startup. Strainer body metallurgies include aluminum, cast iron, brass, and stainless steel. Model Metallurgy Flange size Pressure rating Used with F-7 Aluminum 2" 150 PSI M-5, M-7 FA-7 Aluminum 2" 350 PSI MA-5, MA-7 F-7 Cast iron 2" 150 PSI M-7 F-7 Brass 2" 150 PSI M-7 F-7 Stainless steel 2" 150 PSI M-5, M-7 F-15 Aluminum 3" 150 PSI M-15, M-25 FA-15 Aluminum 3" 350 PSI MA-15 F-30 Aluminum 4" 150 PSI M-30, M-40, M-60 FS Series Steel 2", 3", 4" and 6" 150 PSI MS Series meters FSAA Series Steel 2", 3", 4" and 6" 275 PSI MSAA Series meters FSA Series Steel 2", 3", 4" and 6" 300 PSI MSA Series meters 13 Strainer baskets The proper strainer basket to use depends on the product and the viscosity of the product over the expected range of metering temperatures. The following table provides general application guidelines. Consult the factory for special recommendations. High capacity strainers/air eliminators A high capacity strainer/air eliminator with optional check valve is highly recommended for metering refined fuels (gasoline, fuel oil, etc.) off tank wagons for custody transfer applications. The unit installs directly to the meter inlet and facilitates passing U.S. and Canadian Weights and Measures split compartment testing. Unit uses standard 100mesh strainer basket (3" size). Model Flange size Pressure rating Used with F-7 (Hi-cap) 2" 150 PSI M-7, M-10 F-15 (Hi-cap) 3" 150 PSI M-15, M-25 Strainer mesh size General application 200 M LPG, only 100 M Gasoline, solvents, LPG 80 M Gasoline (alternate), solvents 40 M Heating oil, diesel fuel, light oils 20 M Motor oils and other viscous products Aluminum body Cast iron or stainless steel body Steel body for bulk plant systems Strainer basket High-capacity air eliminator (available with optional outlet backcheck valve)
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