We are the most trusted provider for Gear Pump in China. You can buy various high quality gear pump products from Hi-Sea Group.
A gear pump uses the meshing of gears to pump fluid by displacement.They are one of the most common types of pumps for hydraulic fluid power applications.
Gear pumps are also widely used in chemical installations to pump high viscosity fluids. There are two main variations; external gear pumps which use two external spur gears, and internal gear pumps which use an external and an internal spur gear. Gear pumps are positive displacement or fixed displacement, meaning they pump a constant amount of fluid for each revolution. Some gear pumps are designed to function as either a motor or a pump.
Theory of operation:
As the gears rotate they separate on the intake side of the pump, creating a void and suction which is filled by fluid. The fluid is carried by the gears to the discharge side of the pump, where the meshing of the gears displaces the fluid. The mechanical clearances are small— in the order of 10 μm. The tight clearances, along with the speed of rotation, effectively prevent the fluid from leaking backwards.
The rigid design of the gears and houses allow for very high pressures and the ability to pump highly viscous fluids.
Many variations exist, including; helical and herringbone gear sets (instead of spur gears), lobe shaped rotors similar to Roots blowers (commonly used as superchargers), and mechanical designs that allow the stacking of pumps.
Generally used in:
Petrochemicals: Pure or filled bitumen, pitch, diesel oil, crude oil, lube oil etc.
Chemicals: Sodium silicate, acids, plastics, mixed chemicals, isocyanates etc.
Paint and ink.
Resins and adhesives.
Pulp and paper: acid, soap, lye, black liquor, kaolin, lime, latex, sludge etc.
Food: Chocolate, cacao butter, fillers, sugar, vegetable fats and oils, molasses, animal food etc.
This series pump used for foodstuff, drink, medicine, daily chemical, petroleum,marine ,chemical industry, etc. 3RP Series Rotary Lobe Pump belongs to positive displacement pump and has the advantages of outstanding self-priming, high efficiency and long life….
NYP Series Internal Gear Pump is a kind of new positive displacement marine pump, and is designed according to the different fields, requirement of petroleum, chemical industry, paint, medicine, foodstuff and so on. It widly applies…
LB-Type Gear Pump for Refrigerator is used in transferring N32 or N46 refrigerated lubricating and other lubricant oil of ammonia machine or freon machine.The suited temperature of the refrigerator gear pump is 10°c~80°C.
LYB vertical arc gear pump is for oil or equivalent liquid without solids and fiber with normal temperature below 300°C. It is mainly used as oil delivering pump or boost pump in oil system or plants.
YCB-G model heat insulating gear pump is used to transfer different medium, such as heavy oil, asphalt, resin, detergent and glue, which not includes solid particles and the temperature not higher than 300℃，with solidifying character under…
◆ YCB Series Circular Gear Pump applies to deliviering non-corrosive lubricating or equivalent liquid without solid particles and fibres at temperature below 300℃and with the viscosity of 5×10-6~51.5×10-3m2/s (5~1500cSt). It applies to hydraulic System, too. Reducing…
The KCB Series Gear Oil Pump, horizontal rotary pump, are suitable for transferring various lubricating fluids such as crude oil, heavy oil and industrial light oil, etc. The temperature of the oil can not be over…
◆ 2CY Series Marine Gear Pump applies to deliver lubricating medium,such as oil ,bitumen, with the viscosity of 3-760cSt at temperature below 350°C ◆ The pump’s working pressure range from 0.6Mpa to 2.5Mpa ◆ Flow rate…
Get Free Quote
