••• Aluminum of various grades is used for manifolds resulting in working pressures to 4500 psi. ••• Steels and irons used in manifolds allow for working pressures above 7000 psi. ••• Stainless Steel materials in 300 series, 400 series, and "exotics" such as nitronics, yield working pressures to 5000 psi with excellent corrosion resistance. ••• Plastics and brass are suitable for low to medium pressures for hydraulic and pneumatic systems.

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