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Multi valve installation angle

2026-01-22 | Page View：248

Basic structure and function of combination valve

1. LPG import: During filling, LPG enters the interface of the steel cylinder and is connected to the filling pipeline (D8X1 copper pipe)
2. LPG export: the pipeline interface that supplies LPG to the engine when working with LPG, connected to the gas supply pipeline (D6X1 copper pipe)
3. Imported manual shut-off valve: Manually close the channel for LPG to enter the steel cylinder, and it must be in the open position during filling. Generally, it should be closed during maintenance or emergency situations;
4. Export manual shut-off valve: The channel for manually closing the LPG output must be in the open position during operation, usually closed during maintenance or emergency situations;

5. 80% limit filling valve: During the filling process, when the LPG in the cylinder reaches 80% position, the passage for LPG to enter the cylinder is automatically cut off, and the filling process is automatically stopped.
6. Safety valve: In the event of an abnormal increase in LPG pressure inside the steel cylinder, when the pressure reaches 2.5 MPa, in order to prevent further pressure rise and dangerous situations, the safety valve will open and discharge the gaseous part of LPG to the outside. When the pressure reaches 2.3 MPa, the safety valve will close.
7. Overcurrent protection valve: When the LPG outflow speed exceeds the normal range due to pipeline rupture, joint leakage, or other reasons, the overcurrent protection valve will close the LPG output pipeline to prevent a large amount of LPG from flowing out.

Refer to:Multi valve installation angle

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