Dear Forum peeps,
I have been looking at a number of ballast systems, in particular -piston type. I ave a question, how is the threaded rod sealed on the housing....I see it rotates with the motor on what appears to be a fixed thread- drawing the piston in and out.is there a specific sealing magic here?
I have been looking at a number of ballast systems, in particular -piston type. I ave a question, how is the threaded rod sealed on the housing....I see it rotates with the motor on what appears to be a fixed thread- drawing the piston in and out.is there a specific sealing magic here?
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