Essential Assembly Rules. Modular multiple pumps are available both in ALP and GHP series, as single modular stages to be assembled together using the assembly kit or even preassembled according to customer's needs. The selection criteria for assembling themultiplemodular stages are the following: The unit of the preceding stage should be equal or greater than the following stage. Middle stages have no direction of rotation of their own as it is set by the way they are assembled. Always refer to the direction of rotation as shown by the arrow on the body of each single stages. Size andDimensions ofAssembledMultiple Pumps. Add the overall dimensions of each single stage to get to the total overall dimensions of a modular multiple pump consisting of two or more stages. Single dimensions are specified on product tables. Overall dimensions and intake and delivery port positions of front stages may vary depending on stage type and/or ports. These features are not detailed on product tables. They are the same inmiddle and/or back stages. The size, or displacement, of the preceding stage should be greater than or equal to the following stage and its direction of rotation should be the same for all stages. ALPA3-D-80+GHPP1-D-4 Please refer to "How toOrder". ALPback stage, family 1, size 6 GHPback stage, family 1, size 4 Modular multiple pump: two stages, clockwise direction of rotation ALP front stage, family 2, size 20 Modular multiple pump: three stages, anti-clockwise direction of rotation As specified in the previous pages of this catalogue,ALPand GHP stages can be assembled together depending on customer's needs. ALPA2-D-20+ALPP1-D-6 GHPback stage, family 1, size 4 GHPmiddle stage, family 1, size 4 When ordering an assembledmultiple pump its description will include the description of all single stages -front, middle(s) and back stage. ALP front stage, family 3, size 66 How toOrderAssembledMultiple Pumps. ALP front stage, family 3, size 80 Modular multiple pump: two stages, clockwise direction of rotation ALPA3-S-66+GHPI1-4+GHPP1-S-4 Gear Pumps Modular Multiple Pumps 43 www.jbj.co.uk/gear-pumps.html #DriveLineHarmony
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