Internal Gear Pump
32Pages

1/32 Reference: 100-P-000021-E-08 Issue: 02.09 Internal Gear Pumps Series QX

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 2/32

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 3/32 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 4/32 8 Fluid cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 9 Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 10 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 10.1 Bolt-on valves - SAE 3000 pattern . . . . . . . . . . . ....

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 5/32 1 General 1.1 Product description The QX pumps are the 5th generation of Bucher internal gear pumps, which have proven themselves in thirty years of service around the world. Numerous improvements have been made to the straightforward and robust design. Advances in the manufacturing process have made it possible without making higher demands on individual components to build pumps that are considerably lighter and more compact. A new tooth profile, conceived and optimised with the help of CAE, has yielded another significant reduction in...

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 11/32 4.2 Pressure range 1 L I K E S N G D V O P T C A F B Z Z X Y 1 3 P S 2 1 external drain port - see special feature 06 2 Special model: 4-hole flange ISO 3019/2 3 Depending on operating conditions, a second suction port may be required on QX61 (SAE 2") and QX81 (SAE 2 1/2") - see section 2.2.1 4.3 Pressure range 2 L I K M E S N P G D V O T A C F B Z Z X Y 1 S P 2 1 external drain port - see special feature 06 2 Special model: 4-hole flange ISO 3019/2

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 12/32 4.4 Pressure range 3 I L K M E S T N G D V O C A Z Z B F P X Y P 2 1 S 1 external drain port - see special feature 06 2 Special model: 4-hole flange ISO 3019/2 4.5 Ordering code for single pumps Series = QX Frame size = 2 / 3 / 4 / 5 / 6 / 8 Pressure range = 1 / 2 / 3 Displacement in cm3/rev = 005 - 500 Rotation right (CW) = R (viewed from shaft end) left (CCW) = L Q X 5 3 - 0 4 0 R * * Variants / special features (to be inserted by the factory, see section 4.7 for a selection) Ordering example: Required: single pump Displacement: 40...

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 13/32 5 Double pumps QX double pumps consist of two single pumps mounted on a common drive shaft. Hydraulically, the two pumps operate independently of one another but they share a common suction port in the pump’s centre section. The larger pump of the combination is situated at the shaft end (the drive side) and is referred to as Pump I. With equal frame sizes, the pump with the larger displacement is situated at the drive side. Double pumps can be combined as shown in the following table. If a letter is shown at the intersection point of the...

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 23/32 5.3 Ordering code for double pumps Q X 6 3 0 8 0 / 3 1 - 0 2 0 R * * Series = QX Frame size = 2 / 3 / 4 / 5 / 6 / 8 Pressure range = 1 / 2 / 3 Displacement in cm3/rev = 005 - 500 Frame size = 2 / 3 / 4 / 5 / 6 / 8 Pressure range = 1 / 2 / 3 Displacement in cm3/rev = 005 - 500 Rotation right (CW) = R (viewed from shaft end) left (CCW)= L Variants / special features (to be inserted by the factory, see section 4.7 for a selection) - Ordering example: Required: double pump Pump 1 Displacement: 80 cm3/rev Continuous pressure: 300 bar Type:...

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 25/32 6.2 Ordering code for triple pumps Triple pumps can only be supplied after consultation with the factory. Q X 5 1 - 1 2 5 / 5 1 0 1 2 R * * Series = QX Frame size = 2 / 3 / 4 / 5 / 6 / 8 Pressure range = 1 / 2 / 3 Frame size = 2 / 3 / 4 / 5 / 6 / 8 Pressure range = 1 / 2 / 3 Variants / special features (to be inserted by the factory, see section 4.7 for a selection) - 0 8 0 / 2 1 - Frame size = 2 / 3 / 4 / 5 / 6 / 8 Pressure range = 1 / 2 / 3 Rotation right (CW) = R (viewed from shaft end) left (CCW) = L Displacement in cm3/rev = 005 -...

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 26/32 7 Low-flow capability pumps 7.1 Generals The QX24 internal gear pump is a further development of the Bucher internal gear pump, which has proven itself in more than 30 years of service around the world. With displacements from 3,3 to 5,1 cm3/rev, it extends the low-flow capability of the QX range. 7.2 Technical date Mounting attitude unrestricted Mounting method (standard) oval 2-hole flange to ISO 3019/2 (metric) Direction of rotation right, alternatively left (but not reversible) Pump drive method in-line, by flexible coupling Fluids...

100-P-000021-E-08/ 02.09 Internal Gear Pump QX 28/32 7.5.2 Ordering codes Series = QX Size = 2 Pressure range = 4 Displacement in cm3/rev = 003, 004 and 005 Direction of rotation right (CW) = R (viewed from shaft end) left (CCW) = L Q X 2 4 - 0 0 4 R * * Variants / special features (to be inserted by the factory, see section 7.5.4 for a selection) 7.5.3 Standard configuration direction of rotation right " 2- hole mounting flange to ISO 3019/2 (metric) Nitrile seals cylindrical shaft end to ISO R775 separate drain port G 1/4 in rear cover of the pump 7.5.4 Special features 09 = Viton seals...