Article Needle Valves (A45f988)

Valve - valve dibawah ini berbeda dengan gate valve dan globe valve dalam hal cara membuka dan menutup valve. 1. Lubang tengah, untuk menciptakan kevakuman agar cat dalam tabung terhisap ke atas (pada spray gun tipe suction).For pressure vessels, service temperature is considered part of the vessel design conditions, and the maximum temperature is used to select allowable stress limits for the chosen vessel material.Valves used in ethylene plants are similar to those in oil refineries, but they are required to follow much stricter standards for high temperature, extreme

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