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...

Choosing the wrong type of valve can be detrimental to your operation. There are a few different types of  butterfly valves  on the market, including the zero offset, double offset, and triple offset. Zero Offset Also known as a concentric design, this is common in general service ‘resilient seated’ or ‘rubber seated’ butterfly valves. The stem and disc are centered in the seat of the valve, all of which are centered in the body of the valve. The disc is in constant contact with the seat. An advantage of this valve is the media going through the valve will not contact the body, since the seat is constructed as a sleeve or cartridge inside of the body. Zero offset butterfly valves are used in basic and specialty liquid and gas applications up to 200 PSI and up to 400 deg F. The zero offset butterfly valve can handle chemicals, coatings, food, some solids, and abrasive applications. The zero offset butterfly valve is available in epoxy coated cast iron and...

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 Exploded View of Solid Metal Seat Tripple Offset Butterfly Valve: 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 center, equipped with most advanced production equipment and testing equipment. The  fire safe butterfly valve  is also in FEIDA VALVE product range. Our fire safe butterfly valve is certificated by American Petroleum Institute (API) according to API 607 standards. FEIDA also build up a dustless workshop to produce ultra-clean valve for some critical working condition such as nuclear industry, semiconductor industry etc. In the dustless workshp, FEIDA also produce the food-grade valves.  FEIDA food-grade valve  is certificated by Food and Drug Administration (FDA).

Butterfly valves  are similar to ball valves but have several advantages. They are small and, when actuated pneumatically, open and close very quickly. The disc is lighter than a ball, and the valve requires less structural support than a ball valve of comparable diameter. Butterfly valves are very precise, which makes them advantageous in industrial applications. They are quite reliable and require very little maintenance. 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 center, equipped with most advanced production equipment and testing equipment. Thefire safe butterfly valveis also in FEIDA VALVE product range. Our fire safe butterfly valve is certificated by American Petroleum Institute (API) according to API 607 standards. FEIDA also build up a...

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...

THE Double Offset High Performance Butterfly Valve The  double offset butterfly valve  is also known as a high performance butterfly valve. The high performance butterfly valve has two stems offset from the center.  This creates a cam action during the application's process. 1st offset: The axis of the shaft is behind the centerline of the sealing point of the disc to seat. 2nd offset: The axis of the shaft is eccentric to the center of the valve/pipe line. The double offset high performance butterfly valve is generally used in: Power generation Pulp and paper HVAC Chemical Oil and gas Water and wastewater treatment Shipbuilding Double offset butterfly valves are available in higher pressures than the zero offset style.  The double offset is up to ANSI Class 600 rating in carbon steel, stainless steel, Hastelloy and other body material, with variations of Teflon seats and also Fire Safe design with metal back up seats. FEIDA is ...