IVP21-- Series No. 38-- shaft pump flow code: Theoretical displacement ml / r128 21 - Cover end pump flow code: Theoretical displacement ml / r: 66.7 1-- shaft extension: 1-1 flat key, 86- overloaded B-- first flat key oil port location: A- B- in the inlet opposite the inlet counter-clockwise 90 ° C- D- at the inlet on the same side in the inlet clockwise rotated 90 ° B-- second oil outlet location: A- second oil outlet from the inlet counterclockwise rotation of 135 ° B- second oil outlet rotated counterclockwise from the inlet of the second of 45 ° C- Port rotated by 45 ° clockwise from the inlet port D- second oil clockwise rotation from the inlet design number 135 ° 18--