Proportional valve shared by JIS Marine valve Manufacturer.
Application of Oil Proportional Valve
1. For bearing production line, grease should be added to sealed bearing before gland.
2. Half shaft production line of automobile, and half shaft bearing is filled with grease.
3. Quantitative control in the refitting of oil from large drums into small packages.
The grease injection system consists of grease pump, quantitative grease injection valve, pneumatic control pipe and grease injection gun.
Ii. Precautions for use
1. When using the system, pay attention to keep the grease clean, do not mix with other impurities, so as not to affect the performance of the quantitative valve. Filtration elements shall be designed in the oil supply pipeline, and the filtration precision shall not be more than 100 mesh.
2. When not in use for a long time, the upstream pipeline of the JIS Marine valve should be closed to remove the pressure.
3. The pressure of oil source should not be too large and should be kept below 25MPa.
4. Install the valve in the pipeline, pay special attention to the inlet and outlet of oil, do not install reverse. The oil inlet is marked “P” and the oil outlet is marked “T”. Oil inlet and outlet are all “g1/4”.
5. When adjusting the positioning screw, remove the pressure in the cylinder, otherwise the screw cannot be rotated.
6. In order to ensure the accuracy of refueling, the valve should be refueled and reversed 2-3 times after the first use or adjustment, so that the air in the cylinder is completely discharged, and then used normally.
7. Quantitative valve control using 5/2 pneumatic electromagnetic directional valve or manual (or foot) JIS marine Check Valve. When the pneumatic switch is pedal-operated, note that the pedal is blocked by the baffle after pedaling. Next time when reversing, use the pedal to move the baffle so that the pedal is lifted, thus realizing two consecutive commutation. Step on the pedal should step to the bottom, until the pedal is blocked, do not stop halfway.
8. During normal use, do not manually block the oil outlet to avoid damaging the parts of the air control part of the combination valve. If a blockage occurs, clear it immediately.
9. When the medium used is oily with more impurities, the reversing valve is a wearing part, which needs to be replaced regularly. When replacing, remove the upstream pressure, remove the cylinder at both ends of the reversing valve, remove the reversing valve, and replace it with a new valve body (pay attention to the direction of the oil port, not the reverse), replace the removed cylinder, pay attention to the original sealing ring do not leak.