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Flow direction of Valve-Butterfly valve
Oct 13,2020
A Butterfly valve is a quarter-turn rotational motion valve, that is used to stop, regulate, and start flow. A butterfly valve has a disc which is mounted on a rotating shaft. When the butterfly valve is fully closed, the disk completely blocks the line. When the butterfly valve is fully opened, the disc is at a right angle to the flow of gas or liquid. The butterfly valve consists of only four ma...
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Comparison of Butterfly Valves – Concentric butterfly valves, Double-offset butterfly valves, and Triple-offset butterfly valves
Aug 27,2020
The butterfly valve is a quarter-turn valve that can be used as an on-off valve or throttling valve. There are two types of butterfly valve, a concentric and an eccentric type. The eccentric type can be single, double, or triple-offset type. Even though it is possible to have a single-offset butterfly valve, but it is rarely found in the market. The most available in the market for an eccentric ty...
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The bonds between PSA(Pressure Swing Adsorption) and High Performance Butterfly Valve
Aug 17,2020
High performance butterfly valves： Generally refers to double eccentric butterfly valve and triple eccentric butterfly valve,due to their excellent working performance and high sealing ability (compared with concentric butterfly valve) are widely used in petrochemical,power plants,metallurgy,civil heating fields.Eccentric butterfly valves have the good working performacne to meeting sever and stri...
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What are High-Performance Butterfly Valves?
Aug 10,2020
The high-performance butterfly valve is a new type of butterfly valve designed on the basis of absorbing the advantages of several different structure butterfly valves. The sealing surface of the valve plate of this butterfly valve is a spherical arc surface body. The sealing mechanism achieves a real dynamic seal through the system pressure, so it has excellent cutting performance and durability....
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Advantages of a Butterfly Valve
May 25,2020
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 requir...
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Exploded View of Tripple Offset Butterfly Valve
Apr 14,2020
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. Th...
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The Fire Safe High Performance Butterfly Valve
Apr 7,2020
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...
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What is difference about zero, double and tripple offset butterfly valve?
Mar 21,2020
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, al...
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FEIDA creative design for high performance butterfly valve stem bearing
Mar 2,2020
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 g...
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What is the characters of a double offset butterfly valve
Feb 25,2020
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 o...
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