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Name: William Xiong
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E-mail: zfhydraulic@yahoo.com

HGP-2A-F12R series HYDROMAX oil gear pump

HGP-2A-F12R series HYDROMAX oil gear pump
Product name : HGP-2A-F12R series HYDROMAX oil gear pump
Item :
Details :
HGP-2A-F12R series HYDROMAX oil gear pump 
Features
HGP-2A Gear Pump function well under high temperature with Viton’s seal. It can also run under high pressure with the oil less bearing design.
Model Definition
HGP-2A
-F
8
-R
-X
-4BJ
Series
Installation Type
Displacement
(cc/rev)
Input Rotation
Input Shaft
Front Flange Cover
Gear Pump 2A Series
F: Flange Mounting
L: Foot Mounting
2:2
3:3
4:4
6:6
8:8
9:9
11:11
12:12
R: Clockwise
L: Anti-clockwise
X: Straight Keyed
Y: Spline
4BJ: JIS 4-Bolt
Specification
Model
Displacement
(cc/rev)
Pressure
(bar)
Speed
(RPM)
Weight
(kg)
Rated
Max.
Rate
Min.
Max.
HGP-2A-F2R
2
210
250
1800
900
5000
1.69
HGP-2A-F3R
3
850
5000
1.70
HGP-2A-F4R
4
800
4500
1.71
HGP-2A-F5R
5
700
3500
1.71
HGP-2A-F6R
6
700
3500
1.72
HGP-2A-F8R
7.5
600
3000
1.74
HGP-2A-F9R
9
550
2500
1.74
HGP-2A-F11R
10.5
500
2000
1.74
HGP-2A-F12R
12
175
210
500
2000
1.76






Product introduction:

HGP series high pressure gear pump using high strength casting, radial sealing using the addendum sweep chamber, axial seal using floating pressure balance side plate, thus to achieve high efficiency. The pump has small volume, light weight, good performance, reliable work etc. Ontology adopt the aluminum alloy, high precision molding design, low noise, long service life. Especially suitable for petroleum, chemical industry, grain and oil, building materials, daily chemical, construction, electricity and asphalt mixing station departments and industry fuel injection occasion. Also more suitable for work pressure stable, long-term continuous working circumstance, such as: strong lubrication system, etc. Lifting the transport machinery, construction machinery, petroleum machinery, agricultural machinery, and other mechanical equipment. Could with low pressure mass flow vane pump to be high and low pump combination, rational utilization of main energy, cost saving. 

Outside size:

Gear pumps
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Please contact us for details, we will serve you wholeheartedly.
 
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Why CB type gear pump can only be used for low pressure system
 
Gear pump in the working process, due to the oil drainage chamber and suction chamber pressure is different, the oil will inevitably leak through the clearance. CB gear pump there are a lot of leakage.
 
First, in order to reduce the mechanical friction between the gear face and the end cover, there should be axial clearance between the gear face and the end cover, and the amount of clearance can not be too small, so the axial leakage of the gear pump is inevitable. We know that the amount of leakage is increased with the increase of the amount of clearance, and the gear pump in the gear face and cover between the large leakage area, so the leakage here accounts for about 70% of the total leakage.
 
Second, in the work of the gear pump, the two gears to rotate, tooth top circle and pump body cavity also exists between the gap, resulting in the radial leakage of oil.
 
Third, two gear meshing tooth surface meshing also has leakage, this leakage through the meshing point generally accounts for only 4% - 5% of the total leakage. It can be seen that CB gear pump leakage is serious, is not easy to establish high pressure.
 
In addition, CB type gear pump has the problem of unbalanced radial force. The higher the pressure in the oil discharge chamber, the greater the pressure on the gear and shaft. The gear shaft produces bending deformation, which affects the bearing life. In order to overcome this drawback, in addition to taking certain measures to eliminate the radial force imbalance phenomenon, the appropriate reduction of oil outlet pressure, for the shaft, bearing part is of great benefit, and can make the pump operation flexible.
In view of the above reasons, CB type gear pump is only suitable for low pressure systems.
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Hydraulic gear pump, crane hydraulic gear pump, gpy-8r/hydraulic gear pump, hydraulic gear pump CBN, hgp-2a-f4r
Gear pump purchase need to pay attention to what? ZF hydraulic remind you:
1 if the bulk purchase of gear pump, must choose the regular gear pump manufacturers! (e.g., ZF HYDRAULIC & PNEUMATIC PARTS CO., LTD.)
2 to buy gear pump must sign a formal contract with the manufacturers!
3. Before purchasing gear pump in large quantities, be sure to let the manufacturer make prenatal sample confirmation!
ZF hydraulic branch specializing in the provision of gear pump bulk purchase, looking forward to working with you!

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Where is the gear pump good
 
The type of gear pump can be divided into: (1) water pump (type B, type D, type sh) for conveying clean water and clean liquid similar to water in physical and chemical properties. (2) corrosion resistant pump (type F) is used for transporting corrosive liquids such as acid and alkali. (3) oil pump (type Y) is used for conveying petroleum products. The gear oil pump depends on the working volume variation formed between the pump cylinder and the meshing gear

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