High pressure butt-welded globe valve

High pressure butt-welded globe valve

The design and manufacture of high pressure butt-welded globe valves is in accordance with API602 and ASME B16.34. Inspection and testing according to API 598, when marking is maintained according to MSS-SP-25, Pay attention to the water inlet problem in the motorized head and its transmission mechanism. Especially the rain that infiltrates during the rainy season. One is to rust the transmission mechanism or the transmission bushing, and the other is to freeze in winter. The torque caused by the operation of the electric valve is too large. Damage to the transmission parts may cause the motor to be unloaded or the over-torque protection may not be electrically operated. The drive components are damaged and cannot be performed manually. After the over-torque protection action, the manual operation can also not be switched on and off,

Product Details

High-pressure butt-welded globe valves are designed and manufactured in accordance with API602 and ASME B16.34. Inspection and testing by API 598, when marking the maintenance according to MSS-SP-25, also pay attention to the water inlet problem in the electric head and its transmission mechanism. Especially the rain that infiltrates during the rainy season. One is to rust the transmission mechanism or the transmission bushing, and the other is to freeze in winter. The torque caused by the operation of the electric valve is too large. Damage to the transmission parts may cause the motor to be unloaded or the over-torque protection may not be electrically operated. The drive components are damaged and cannot be performed manually. After the over-torque protection action, the manual operation also fails to switch. For example, forced operation will damage the internal alloy parts. The selection principle is: 1. The shut-off valve should be used on the pipeline or device of high temperature and high pressure medium. Such as thermal power plants, nuclear power plants, high-temperature, high-pressure pipelines of petrochemical systems. 2. On the pipeline where the flow resistance is not strict on the pipeline. That is, the place where the pressure loss is not considered. 3. Small valves can be used with needle valves, instrument valves, sampling valves, pressure gauge valves, etc. Advantages of high pressure butt welding type stop valve 1. Simple structure, convenient manufacturing and maintenance. 2. The working stroke is small and the opening and closing time is short. 3. Good sealing performance, small friction between sealing surfaces and long service life. Nominal pressure: PN1.0-25.0Mpa, 150Lb-2500Lb
Operating temperature: -40-600°C
Nominal diameter: DN15-600mm
Connection method: flange, Thread, butt weld, socket weld, NPT
Operating temperature: -196°C-650°C. Connection method: internal thread, external thread, flange, welding, butt welding, socket welding, ferrule, clamp. Drive mode: manual, pneumatic, hydraulic, electric. Applicable to petroleum, chemical, metallurgy, electric power, construction, heat, water supply and drainage, water treatment and other industries

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