Not sure what your weight budget is but here is a semi-custom assembly
of a Swagelok 1/4 inch 3000 psi plug valve with a smart servo actuator.
Total weight with valve, actuator, and bracket is 0.31 lb. One
advantage of using the ball valve and smart servo is it stays put if it
loses power. I use it for the high pressure helium supply on my
rocket. If you don't mind machining a new housing out of aluminum, you
could get the weight down further.
http://www.watzlavick.com/robert/rocket/rocket1/photos/dsc_1174m.jpg
-Bob
On 10/8/20 12:58 PM, William Claybaugh wrote:
Testing shows that the Lake Axial Solenoid valve in my pneumatic payload separation system is leaking at 125 psia despite a 1000 psia rating (two valves tested, both leaked); the leak is through the valve and caused the latchup of the payload to the vehicle to fail within an average of four minutes. Additional testing on my vibe table showed latch failure in less than one minute in ten tests.
Can anyone suggest a solenoid valve good for at least 250 psia and unlikely to leak under vibration?
Alternative suggestions to using a solenoid valve are welcome.
Thanks,
Bill
