VALVE

The special design stem bearing is design for high frequency operation to provide a durable & good sealing performance. It is combined with stainless steel tube and inner lining RPTFE. When the valve open/close, the inner lining RPTFE will be the lubricant to minimize operation friction and torque. Normally, the stem packing is made of graphite, but after a strenuous operation, the graphite will peel off, the peeled graphite chips will go into the flow-path to contaminate the flow media. Due to the high frequency operation (at least 2 operation/minute) requirement of gas industry valves, our stem bearing is a perfect design for  Gas Industry  especially the  Vacuum Pressure Swing Adsorption . FEIDA is specialized in  High Performance Butterfly Valve  for more than 15 years. There are 2 main facilities includes 2 valve assembly & testing factories, 1 large CNC machinery plant, 1 investment casting foundry (3000T/Y) and 1 valve R&D cen...

FEIDA  High Performance Butterfly Valves  are used in rigorous applications especially in the petrochemical and offshore settings. FEIDA design and engineered this high quality butterfly valves with a fire safe feature. Such feature typically incorporates a secondary sealing seat that will maintain a positive shutoff when the primary seal is destroyed in a fire. This secondary sealing seat is made of indestructible materials that can tolerate extremely high temperature. Fire safe butterfly valve models, just like other types of butterfly valves, are used not only for on/off function but also for control applications. In most cases, the primary seat of fire safe butterfly valves offers near zero-leakage assurance. The secondary metal seat can perform sealing function, but may allow minimal leakage at high temperature that occurs during fire. The main sealing seat is usually made of the material called PTFE (polytetrafluoroethylene) also known as Teflon. The ...

The special design stem bearing is design for high frequency operation to provide a durable & good sealing performance. It is combined with stainless steel tube and inner lining RPTFE. When the valve open/close, the inner lining RPTFE will be the lubricant to minimize operation friction and torque. Normally, the stem packing is made of graphite, but after a strenuous operation, the graphite will peel off, the peeled graphite chips will go into the flow-path to contaminate the flow media. Due to the high frequency operation (at least 2 operation/minute) requirement of gas industry valves, our stem bearing is a perfect design for  Gas Industry  especially the  Vacuum Pressure Swing Adsorption . FEIDA is specialized in  High Performance Butterfly Valve  for more than 15 years. There are 2 main facilities includes 2 valve assembly & testing factories, 1 large CNC machinery plant, 1 investment casting foundry (3000T/Y) and 1 valve R&D cen...