Recently, PERFECT factory produced a small batch of high-pressure hydrogenation valves. High-pressure hydrogenation is an important process in petroleum deep processing and coal chemical industry. It can not only improve the recovery rate of crude oil but also improve the quality of fuel oil. The dielectric environment of a high-pressure hydrogenation device is characterized by […]
Gate valve is a kind of valve for medium connection and shut- off but not suitable for regulating. Compared with other valves, gate valves have a wider range of combined applications for pressure, service fluid, design pressure and temperature. According to the screw position of the stem, the gate valve can be divided into rising […]
A bolt is a cylindrical body with external threads consisting of a head and a screw. As one of the most commonly used fasteners, it is used in conjunction with a nut to connect two parts with holes like valves. The bolts used for valve flange connection can be classified into 3.6, 4.6, 4.8, 5.6, […]
Working temperature is a key factor should be taken into consideration for valve design, manufacture and inspection. Generally, the operating temperature t > 425℃ valve is referred to as a high-temperature valve, but the number is difficult to distinguish the temperature range of high temp valve. High temp valve including high temp gate valve, high […]
When a valve is closed suddenly, the inertia of the pressurized flow creates a water shock wave that can cause damage to the valve or piping system. This is known as the “water hammer effect” in hydraulics or positive water hammer. On the contrary, the sudden opening of the closed valve can also produce water […]
Industrial processes frequently use steam at lower pressures and temperature. The steam is used for cleaning, heating, and humidification in the application of powering turbines to generate electricity. The steam pipeline of power plant requires some control and steam control to reduce the pressure and temperature of the inlet stream for process application. In general, […]