Independently researched and developed CSH-1 shield pressure holding comprehensive verification device [national patent number ZL 2013 2 0278435.3], which can promote the application of pressure holding system debugging. This device can customize various control functions according to user requirements without changing the body structure. By switching the manual valve and changing the gas circuit interface, modular debugging and system joint adjustment can be realized, which reduces the difficulty of on-site maintenance and debugging of the shield pressure holding system.

1. Pressure transmitter debugging module;
2. Controller debugging module;
3. Locator debugging module;
4. Joint debugging module of simulated shield pressure holding system;
5. Joint debugging module of actual shield pressure holding system.

1, Φ8 quick-change interface, improve the efficiency of pipeline connection replacement.
2. High-precision pressure gauge: the adjustment accuracy can reach ±0.02bar.
3. High-precision air-tight ball valve: sensitive gas path switching, no leakage, no pressure drop loss.
4. The built-in operation principle is shown, and the operation is convenient.