Hand cranked oil pump

Model: SB03-175 (Simple Boosting Type) SB03-175A (Boosting/Regulating Type)

One Purpose:

This manual oil pump is used in conjunction with an emergency shut-off valve. The emergency shut-off valve on large internal storage tanks or tank trucks suitable for liquefied petroleum gas storage and distribution stations is in working condition, and the performance of this pump is used to control the opening or closing of the emergency shut-off valve

II Working principle and structural description:

1. Hand cranked oil pump SB03-175/SB03-175A opens the emergency shut-off valve by reciprocating the handle to increase the pressure, allowing the medium to pass through. In case of fire or other emergency situations, the pressure relief valve of the hand cranked oil pump is opened, and the oil pressure system quickly releases pressure, causing the emergency shut-off valve to immediately close. When the temperature rises above 75 ℃, the easy plug installed in the oil pump or emergency shut-off valve immediately melts, achieving the purpose of automatic pressure relief and causing the emergency shut-off valve to automatically and quickly close.

The main structure of a hand-operated oil pump consists of a plunger for suction oil, an inlet valve, an outlet valve, and a pressure relief valve. The sealed space formed by the closure of the plunger and the inlet and outlet valves is the working chamber of the oil pump. When the plunger moves upward and the volume of the working chamber decreases, the inlet valve opens due to the pressure inside the chamber being lower than atmospheric pressure, and the oil enters the working chamber through the filter valve. When the plunger moves downward, the volume of the working chamber increases and decreases, and the oil pressure in the working chamber increases. The oil outlet valve is opened, and the pressure oil is discharged into the oil system for the emergency shut-off valve to open. The pressure relief valve is set up for pressure relief in the oil circuit system. When the oil pump is working, the pressure relief valve needs to be closed, and the needle valve needs to be opened to release oil from the oil outlet under the shaking handle. When the oil circuit system needs to release pressure, the pressure relief valve should be opened, that is, the emergency shut-off valve should be closed.

7 Precautions for storage, installation, and use:

1. When transporting and storing the pump, attention should be paid to its placement to avoid damaging or damaging the pressure gauge, handle, valve handwheel, etc. It should be stored in a dry and ventilated room, and regularly inspected for long-term storage to prevent rusting.

2. The pump should be cleaned before installation, and the fastening threads of each part should be checked for looseness.

3. During installation and use, remove the plug from the oil outlet hole, connect it to the pipeline of the hydraulic system, inject synthetic spindle oil, swing the handle to inject pressure oil into the system, pay attention to the oil storage capacity of the oil pump, and replenish the oil or install the auxiliary mailbox.

4. After adding enough oil, close the pressure relief valve and pressurize the system. Then open the pressure relief valve and repeat 3-5 times to clear the gas in the oil system and maintain stable pressure.

5. In order to extend the service life of the oil pump, please install a safety valve or energy storage device on the oil pipeline of SB03-175 type, and control the pressure at 6.0MP (2/3 of the pressure gauge pressure) to prevent the external temperature from rising and the oil pipeline from expanding, damaging the emergency shut-off valve and manual oil pump, and impacting the pressure gauge

6. Due to the limited storage capacity of the fuel tank, when the pipeline of the oil system is long or two pumps are used to control several emergency shut-off valves, it is necessary to increase the auxiliary fuel tank.

7. Two SB03 hand-operated oil pumps for station use must be installed in parallel to control several emergency shut-off valves, one of which is a backup and uses instrument valves to control the opening and closing of the emergency shut-off valves.

8. Regularly clean the hand-operated oil pump and oil pipeline, and replace the synthetic spindle oil usually once a year.

9. Close the pressure relief valve (7) before the oil pump can be pressurized, and open the pressure relief valve (7) to release the oil pump pressure

10. The (8) needle valve does not need to be closed. When maintaining pressure for a long time, the (8) needle valve should be closed after being pressurized