Water Rocket Car Hydrostatic Test

In order to test the bottles and the connections we setup a hydrostatic test to see what pressure the bottles would take and if there were any leaks. A hydrostatic test is the safest way to test bottles as the water is not compressible so there is not much stored energy in the bottle at high pressures.

The hydrostatic setup is basically our launch setup with the abort valve pipe going into a bucket, or in the case a container to hold the overflowing water. In our setup once the desired pressure is reached and the test complete, the abort valve is turned and the water is sent out to the bucket for collection. The wrocket car never leaves the launcher

Hydrostatic Test Setup

Hydrostatic Test Setup

The wrocket bottles are full totally with water.

Wrocket Car Full of Water

Wrocket Car Full of Water

We pressurized to 60psi and held with no leaks. Approaching 120psi there was a leak from the robinson coupling and water was escaping. IT was more than a few drops so we will take the bottles apart and fix it. We are currently only using a washer at one end, so we will add another at the other end. We wil lalso use a bi tof locktite on one of the nuts to hold it in place on the threaded rod.

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This entry was posted on Thursday, July 30th, 2009 at 11:29 pm and is filed under Development. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

 
 

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