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Unread 24-09-2016, 16:29
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Re: Motorizied flow control

Quote:
Originally Posted by YPetcho View Post
Hello
I came up with an idea to control the speed of a piston and use it with precision and i wanted to make sure its legal.
we bought 5 ports - 3 position valves so we could stop the piston at any position we want
When you use your 5 port 3 position valves to stop the piston half way, does your pneumatic system comply with R89?

Quote:
R89 Any pressure vent plug must be:
A. connected to the pneumatic circuit such that, when manually operated, it will vent to the atmosphere to relieve all stored pressure in a reasonable amount of time,
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