The solenoid housings are made of metal and are therefore designed for the harsh environment.
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The valve switching is smooth and precise. This reduces the shift shocks, which are responsible for the premature damage of the pump, hoses, seals and sensors.
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The hardness of the piston and sleeve guarantee a high level of protection against abrasion because of any eventual.
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The cartridge valves have hardened and ground piston and sleeve and made from high quality materials and high-precision machines.
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