Pump mounting flange

A pump or fluid-powered motor for mounting at a mount location, comprising:

• a housing defining an inlet and an outlet;
• internal pump components arranged within the housing and operably coupled to a drive shaft having a mechanical coupling mechanism adapted to engage a corresponding mechanical drive mechanism at the mount location;
• and
• a flange secured to the housing and adapted for securing the pump to the mount location, the flange comprising a rectangular plate having at least two parallel sides and two other sides and having a through bore and a substantially cylindrical pilot extending therefrom, defining a first diameter, and including a peripheral groove, the pilot configured for sealingly engaging a pilot recess or opening at the mount location, the flange further comprising a pair of ears on opposing sides of the flange each extending from a respective one of the other sides and a plurality of bolt holes extending through the rectangular plate, forming slots extending through a first edge of the flange, and arranged on a bolt circle with a second diameter larger than the first diameter,
• wherein, the plurality of bolt holes have a spacing ranging from 165 mm to 175 mm and a ratio of the spacing to the first diameter is from 1.00 to 1.13 and the slots extend parallel a second edge of the flange.

A pump or fluid-powered motor for mounting at a mount location, comprising:

• a housing defining an inlet and an outlet;
• internal pump components arranged within the housing and operably coupled to a drive shaft having a mechanical coupling mechanism adapted to engage a corresponding mechanical drive mechanism at the mount location;
• and
• a flange secured to the housing and adapted for securing the pump to the mount location, the flange comprising a rectangular plate having at least two parallel sides and two other sides and having a through bore and a substantially cylindrical pilot extending therefrom, defining a first diameter, and including a peripheral groove, the pilot configured for sealingly engaging a pilot recess or opening at the mount location, the flange further comprising a pair of ears on opposing sides of the flange each extending from a respective one of the other sides and a plurality of bolt holes extending through the rectangular plate, forming slots extending through a first edge of the flange, and arranged on a bolt circle with a second diameter larger than the first diameter,
• wherein a ratio of the second diameter to the first diameter is from 1.39 to 1.61 and the slots extend parallel to a second edge of the flange.