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Hand cranked oil pump hydraulic emergency shut-off valve
Detailed information on hand cranked oil pump:
Product details
Hand cranked oil pumpDetailed information:




Overview of Hand cranked Oil Pump Products:

Product Name: Hand cranked oil pump
Product model: SB03-175 type
Product specification: Φ 10
Pressure rating: 2.0Mpa-7.0Mpa
Applicable medium: 3 # mechanical oil or 2 # spindle oil
Operating temperature: -40~+50 ℃
Valve body material: cast steel


Hand cranked oil pump product introduction:

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


Working principle of hand cranked oil pump product:

1. The hand-operated oil pump uses the handle to make reciprocating movements, increasing the pressure to open the emergency shut-off valve, allowing the medium to pass through. In case of fire
In case of disaster or other emergency situations, open the pressure relief valve of the hand-operated oil pump, and the oil pressure system will quickly release pressure, causing the emergency shut-off valve to stand
When the valve is closed or the temperature rises above 75 ℃, the fusible plug installed on the oil pump or emergency shut-off valve immediately melts, reaching
The automatic pressure relief wood enables the emergency shut-off valve to automatically and quickly close.

2. The main structure of a hand-operated oil pump consists of a plunger for suction pressure oil, an inlet valve, an outlet valve, and a pressure relief valve. By plunger and inlet/outlet
The sealing space formed by the closure of the oil valve is the working chamber of the oil pump. When the plunger moves upward, the volume of the working chamber changes from small to large
When the pressure inside the chamber is lower than atmospheric pressure, the oil inlet valve opens and the oil enters the working chamber through the oil filter valve. When the plunger moves downwards
When the volume of the working chamber changes from large to small, the oil pressure in the working chamber increases, the oil outlet valve is opened, and the pressure oil is discharged into the oil circuit system
Open the emergency shut-off valve.

3. The pressure relief valve is set up for pressure relief in the oil circuit system. When working, the pressure relief valve needs to be closed to relieve pressure in the oil circuit system
The pressure relief valve will be opened, which means the emergency shut-off valve will be closed.

4. The oil tank of the pump is located inside the outer casing of the pump. When injecting oil, simply open the oil filling plug on the top cover. If the oil column volume is insufficient, an additional oil can be added
Auxiliary fuel tank.



Technical parameters of hand cranked oil pump:


Strength test: 10.0MPa
Sealing test: 6.0MPa
High temperature pressure relief test: 400cc
Supporting equipment: Station emergency shut-off valve
Work pressure: 2.0~6.0MPa
Maximum operating pressure: 7.0MPa
Oil chamber capacity: 4000cc
Working medium: 13 # mechanical oil or 2 # spindle oil


Precautions for storage, installation, and use of hand cranked oil pumps:

1. When transporting and storing pumps, attention should be paid to their placement to avoid damaging or damaging the pump's pressure gauge, handle, valve body handwheel, etc. They should be stored
Store in a dry and ventilated room, and regularly inspect for long-term storage to prevent rusting.
2. Before installation, the pump should be cleaned thoroughly and checked for loose threads in all parts.
3. Remove the plug from the oil outlet during installation and use, connect it to the pressure relief system pipeline, inject synthetic spindle oil, and move the handle to
Inject pressure oil into the system, pay attention to the oil storage capacity of the oil pump, and if it is insufficient, add fuel or install an auxiliary oil tank.
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 eliminate the oil system
Maintain stable pressure of the gas inside.
5. When using the oil pressure of the high-speed working chamber of the pressure regulating valve, the pressure regulating valve should be in the position where the valve disc is open, gradually increasing from low pressure to prevent
Sudden increase in hydraulic pressure can cause impact or damage to the pressure gauge.
6. Due to the limited storage capacity of the fuel tank, when the pipeline of the oil system is long or multiple emergency shut-off valves are controlled by one oil pump,
An auxiliary fuel tank needs to be added.
7. In order to extend the service life of the oil pump, prevent the external environment temperature from rising, the oil circuit from expanding, and damage the emergency shut-off valve and manual control
Oil pumps and impact pressure gauges must be regularly inspected.
8. Regularly clean the hand-operated oil pump and oil pipeline, replace the synthetic starch oil, and replace it once a year.

The above is the product information of the hand-operated oil pump. If you have any questions about the specifications, models, pictures, or technical parameters of the hand-operated oil pump, please contact us for detailed information.

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