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Rod & Bore Diameters For 112 Quad Ring + Rod Bore Clearance

JBartlett61

Student
Mar 25, 2025
1
Would anyone be able to assess this drawing and provide the recommended rod and bore diameters to suit a 112 O Ring for this application?
I want to push a piston 1 metre away from a stem by turning it to push the fluid and therefore the piston so the pressure will be low.

Can the rod and bore clearance be increased without decreasing the sealing performance of the O ring when the pressure is low?
If possible, what would the maximum clearance be?
 

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  • STEM & PISTON.png
    STEM & PISTON.png
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