Gear type fuel pump

2CY gear type fuel pumpMainly used for conveying lubricating oil in lubrication systems of various mechanical equipment, suitable for conveying lubricating oil with viscosity below 10 ° E (75C. ST) and temperature below 80 ℃, as well as corrosive, non lubricating, and solid particle containing media. If high temperature is required, high-temperature resistant materials can be used with our unit. For conveying non lubricating oil, beverages, low corrosive water, etc., please use integral stainless steel gear pumps, which are produced by our unit.
2CY gear type fuel pumpIn addition to ordinary motors, explosion-proof motors of the same specifications can also be configured according to user needs. Users need to specify the explosion-proof level of the explosion-proof motor (KB, B2d, B3d).

2CYworking principle:

2CYProduct Parameters:

2CYInstallation size:

2CYStructural Description

This product consists of components such as pump body, gears, front and rear pump covers, safety valves, bearings, and sealing devices.

1. The pump body, front and rear covers, and other parts are made of gray cast iron, while the gears are made of high-quality carbon steel; It can also be made of copper or stainless steel according to user needs.

2. Safety valve.

2CYUsers do not need to install safety valves themselves in the pipeline system when using it. KCB,2CYA safety valve is installed above the rear pump cover or pump body. When the pump or discharge pipeline fails or the discharge valve is completely closed, resulting in high pressure and high pressure impact, the safety valve will automatically open, removing some or all of the high-pressure liquid and returning it to the suction chamber, thereby providing safety protection for the pump and pipeline.

3. Bearings.

2CYAll use DU bearings; Tin bronze bearings can be used according to user requirements. &0818.3-83.3, 2CY1.1 adopts DU bearings; Tin bronze bearings can be used according to user requirements.

KCB133-960 and 2CY8-60 have three structures: DU bearings, tin bronze bearings, and rolling bearings, which need to be specified when ordering. Any items not specified during ordering shall be supplied according to the DU bearing structure.

The bearing is of built-in type and relies on the conveyed medium for lubrication; 011 bearings and tin bronze bearings can operate in non lubricating media.

4. Shaft seal.

The shaft end seals of this series of products have three structures: skeleton oil seals, mechanical seals, and packing seals.

a. Skeleton oil seal: The characteristics of skeleton oil seal are easy maintenance and replacement, low cost, but short service life. Ding Qing rubber skeleton oil seal is suitable for 1001: the following working environments; Fluororubber skeleton oil seal is suitable for working environments below 200 ℃.

b. 1. Mechanical seal: The characteristics of mechanical seals are reliable sealing, long service life, and high cost. The substrate of the mechanical seal is made of stainless steel, and the dynamic and static surrounding media are made of YG8 hard alloy or YG8 graphite, respectively. The operating temperature is below 200 ℃.

c. Packing seal: Packing seal is only used for high-temperature oil pumps, and its characteristic is high temperature resistance with a small amount of leakage. During use, regular adjustments should be made according to the leakage situation, and the operating temperature should be below 250 ℃.

The type of sealing structure required by the user should be specified when ordering. Any items not specified at the time of ordering shall be supplied according to the nitrile rubber skeleton oil seal structure.

5. Type of inlet and outlet:

The inlet and outlet of the 2CY series gear lubrication pump are designed with British pipe threads (G) corresponding to the diameter, which are directly made on the pump body.

KCB18.3-200, 2CY1.1-12 with waist flange with pipe threaded mouth; Other pumps do not come with flanges. When users need flanges, they should be specified in the order.

6. The pump and motor are connected by an elastic coupling and installed on a common chassis.

2CYPrecautions for use

1. Installation

a. Before installation, it is necessary to check whether the pump has been damaged during transportation, such as whether the motor has been affected by moisture, whether the dust covers at the pump inlet and outlet are damaged, and whether dirt has entered the pump chamber.

b. Before installing the pipeline, the inner wall of the pipeline should be cleaned with clean water or steam. During installation, the weight of the pipeline should be avoided from being borne by the pump, so as not to affect the accuracy and service life of the pump.

c. The oil pump should be as close as possible to the oil tank; The connection parts of the pipeline must not leak air or liquid, otherwise there may be a phenomenon of not being able to absorb liquid.

d. To prevent particles, impurities, and other contaminants from entering the pump, a metal filter screen should be installed at the suction port with a filtration accuracy of 30 mesh/in, and the filtration area should be more than three times the cross-sectional area of the inlet pipe.

e. It is recommended to install vacuum and pressure gauges on the import and export pipelines to monitor the working status of the pump.

f. When the oil pool is deep, the suction pipeline is long, or the medium viscosity is high, causing excessive vacuum, the inlet pipe can be thickened by one gear. When the oil suction pipeline is long, a bottom valve should also be installed.

2. Pre work inspection

a. Are the fasteners of the pump secure.

b. Is the rotation of the drive shaft evenly weighted.

c. Is the valve of the inlet and outlet pipeline open.

d. Whether the rotation direction of the pump meets the requirements.

e. Before initial use, an appropriate amount of medium should be injected into the pump.

3. Maintenance during work

a. The readings of the pressure gauge and vacuum gauge of the pump should comply with the technical specifications specified for the pump.

b. When there is abnormal noise or high temperature rise during the operation of the pump, the pump should be stopped immediately for inspection.

c. In general, safety valves should not be adjusted arbitrarily. If adjustment is necessary, instruments should be used for calibration. Make the cut-off pressure of the safety valve equal to that of the pump

d. 1.5-2 times the rated pressure. 4. Pump stop

a. Cut off the power supply.

b. Close the inlet and outlet pipeline valves.

2CYMalfunctions and troubleshooting