The needle valve actually failed at 150×

[yyt]

I can't understand that the initial pressure of 150× and the theoretical explosion limit pressure should be less than 110mpa, but the maximum working pressure of my needle valve reaches 400mpa. Why did it fail?

[yyt]

这是它的照片。在几次150次射击后，它变得无法保持密封。

[jackssmirkingrevenge]

the maximum working pressure of my needle valve reaches 400mpa

Ah, but what's the maximum working temperature?

[yyt]

the maximum working pressure of my needle valve reaches 400mpa

Ah, but what's the maximum working temperature?

I don't know its maximum working temperature, but it is a metal hard seal, so I think the temperature should have little effect, which may be a product quality problem.

[Heimo]

Might be due to being subjected to a shock load...

[quinn whitsitt]

that not very high psi.