What is the minimum standard starting pressure for a double-acting cylinder with piston rod sealing?

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What is the minimum standard starting pressure for a double-acting cylinder with piston rod sealing? Every industry has its standards. Dongsheng Seals tells you that the minimum starting pressure for double-acting cylinders with piston rod seals must not exceed a certain value (refer to Table 1, which shows that the minimum starting pressure for double-acting cylinders with piston seals must not be higher than the values indicated there). Did you know that? Nominal pressure – Piston seal type, Rod seal type: Apart from V-type rod seals, for nominal pressures ≤16 MPa, piston seals with a V-shaped cross-section are used; values range from 0.5 to 0.75. O/U/Y/X combination piston seals are used for nominal pressures in the range of 0.3 to 0.45. Piston seal rings have values ranging from 0.1 to 0.15. For nominal pressures >16 MPa, piston seals with a V-shaped cross-section are used; the values are nominal pressure multiplied by 6% or nominal pressure multiplied by 9%. O/U/Y/X combination piston seals require a value of nominal pressure multiplied by 4% or nominal pressure multiplied by 6%. Piston seal rings require a value of nominal pressure multiplied by 1.5% or nominal pressure multiplied by 2.5%