drilling system pneumatic unions with high quality

Features:

1. Low requirements for centering, and rapid installation and sealing of un-centering.

2. Reliable sealing without leakage.

3. After charge, the pneumatic tyre will touch tightly around the central pipe for rapid connection and sealing.

4. After discharge, the pneumatic tyre will loose the central pipe for rapid un-installation.

5. There are no connecting parts for installation parts or un-installation, it is unnecessary to use hand or tool to operate.

6. High adaptability and easy to maintain.

Technical parameters:

1. Working medium: mud, oil and water;

2. Medium temperature: 0°C~90°C

3. Environment temperature: -30°C~50°C

4. Medium pressure: 0.5Mpa

5. Charge pressure of pneumatic tyre: 0.4~0.8Mpa

6. Reset time of pneumatic tyre after discharge: 1~4 s