Eternal Hydraulic Jihostroj QHD Gear Pump
QHD line pumps are particularly designed to be used in mobile hydraulic systems of agricultural, heavy construction and road building machines as well as in advanced hydraulic systems of material handling devices. The geometric volume size range of this line is Vg = 10 to 100 cm3/rev.
The pumps are characterized by simple construction with hydraulic pressure balance, compact dimensions and a wide range of connection types. QHD pumps have a two-piece all-cast-iron construction. The basis consists of a supporting body with a blind chamber for gear wheels and a fastening flange. The body as well as the flange are made of a highquality grey cast iron. In the body and the flange, sliding sleeves for gear wheels are molded. Gear wheels with 12 teeth made of heavy duty steel are optimized for low-noise applications. The axial balance of the pumps is accomplished by means of aluminum alloy thrust plates, in the grooves of which compensating surface shape sealing is positioned. For heavy duty with a weight-bearing drive shaft, the pumps can be equipped with front-end roller bearings. QHD construction enables the pumps to be used already at low revolutions at high pressure.
QHD pumps have been produced in various designs with diverse drives, connecting flanges, fluid inlets and outlets.
They comply with the ISO, SAE, UNI as well as other worldwide standard and can be delivered in simple or multiple designs. Furthermore, the pumps are also available in reversible version with internal or external drainage.
QHD0
– Displacement from 7 to 56 ccm/rev (from 0.428 to 3.424 in3/rev)
– Robust cast iron design
– Bi-directional version available
QHD1
– Displacement from 10 to 100 ccm/rev (from 0.62 to 6.10 in3/rev)
– Bi-directional version available
– Two piece cast iron design
QHD2
– Displacement from 43 to 150 ccm/rev (from 2.66 to 9.19 in3/rev)
– Bi-directional versions available
– Two piece cast iron design
Feature
- 100% Replace Jihostroj original
- Consistent high quality based on large-volume production
- Port connections: flanged or threaded
- Slide bearings for high loads
- Drive shafts according to ISO or SAE and customer specific solutions
- Long service life