Core Application Scenarios:
1. Spare valve hole sealing
Function: Close the unused plug-in valve holes on the integrated valve block (such as oil circuit board, pump station valve group) to prevent oil leakage and contaminant intrusion.

Case:
The flow control valve hole reserved in the hydraulic valve block of the injection molding machine is sealed with a plug when the function is not expanded (pressure ≤35MPa).

The redundant pressure valve hole seal of the hydraulic system of the metallurgical rolling mill needs to withstand high-temperature hydraulic oil (>80℃).

2. Test and diagnostic interface
Function: As a temporary access point for pressure gauges and sensors, it is used for system debugging or troubleshooting.

Technical points:
he plug needs to have a hexagonal disassembly groove for quick disassembly and assembly (such as ISO 1179 standard interface).

Pressure measuring plugs (built-in sealing cone surface) are commonly used in chemical equipment and automatically seal after connection.

3. System modification and upgrade
Function: Close the abandoned oil circuit, or replace it with the actual valve core when the function is expanded.