2021 Volume 20 Pages 134-137
After tests using actual oxidizer, for example firing tests, the valves for propulsion system should be enough cleaned. If the cleaning was not appropriate, it would be able to cause of problems such as a leaking by corrosion cracking. But now, valve cleaning methods are based on the experiences of each manufacturer and those are not unified. We conducted some tests to verify the efficiency of cleanings method for oxidizer valves. Especially, we focus on the method to remove residual oxidizer from polymer for seals inside valve. In this paper, we describe our results and propose a policy for efficient valve cleaning methods.
