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How Fire Safe Butterfly Valves Work
Nov 1,2022
Butterfly valves are effective flow control devices that use a rotational disk to regulate the flowing media in a particular process. The wide use of this type of valves is attributed to its tight shutoff and quarter-turn operation. For many industrial facilities, it has always been a concern if a butterfly valve will continue to function efficiently during a fire incident. When there is a valve f...
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What is a high performance butterfly valve - China High Performance Butterfly Valve Manufactures
Oct 27,2022
High-performance butterfly valve, also known as flap valve, is a kind of regulating valve with simple structure. A high-performance butterfly valve that can be used for medium switching control in low-pressure pipelines, which means that the closing member (butterfly plate or butterfly plate) is a butterfly plate, which rotates around the valve shaft to realize opening and closing. Butterfly valve...
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API 607 fire safe butterfly valve
Sep 28,2022
FEIDAVALVE High performance butterfly valves are used in rigorous applications especially in the petrochemical and offshore settings. Most of these high quality double offset butterfly valves are designed with a fire safe feature. Such feature typically incorporates a secondary sealing seat that will maintain a positive shutoff when the primary RPTFE (reinforced polytetrafluoroethylene)seal is des...
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Differences between API609 Category A and Category B
Aug 19,2022
API 609 is the American design standard forbutterfly valves, which is divided into Category A and B. Category A valves are "concentric" type. Also known as rubber lined butterfly valves. These are popular in low pressure systems (Class 150 or less), relatively lower cycle life, rubber liners are also good for abrasive slurry services. Category B valves are "offset" type, meaning the shaft is offse...
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What is Category B butterfly valves?
Aug 3,2022
A butterfly valve, abbreviated as BTFLV, is a quarter turn valve (90° or less) with a circular disk as its closing element. The standard design has the valve stem running through the disk, giving a symmetrical appearance. Other designs offset the stem. Advantages include less wear and tear on the disk and seats, and tighter shut-off capabilities. When space is limited, some...
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WHAT IS A HIGH PERFORMANCE OR DOUBLE OFFSET BUTTERFLY VALVE?
Jul 14,2022
High Performance Butterfly Valves use a disc offset from the seat center, hence the name Double Offset. In this configuration, the disc is eccentric, or offset, from the valve seat. As the disc starts to rotate, it moves away from the seat instead of across it. This design actually uses the line pressure to help give it its seal. This feature allows the use of offset butterfly valves in high‐press...
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What is A High Performance Butterfly Valve
Jun 23,2022
High performance butterfly valves can be used for shutoff and throttling control. They are designed to handle everything from general applications to viscous and corrosive liquids; corrosive gases and steam. A wide variety of seat types are available including: PTFE seat - providing bubble-tight shutoff in both directions, Seats for dirty, viscous services Fire safe seats - designed for fire...
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Butterfly Valves – An Economical Choice - High Performance Butterfly Valve
Apr 15,2022
Butterfly valves are a great (and less expensive) alternative to globe and other control valves in applications where 1-2% accuracy is acceptable. Process conditions will dictate whether a resilient seated or high performance butterfly valve should be selected. A resilient seated butterfly valve is the most economical choice. If pressures and temperatures are not extreme, this type of valve should...
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An Overview of Butterfly Valves
Jan 21,2022
HIGH PERFORMANCE BUTTERFLY VALVE (also called double offset) have two offsets: The first offset of stem is off center to or behind the disc seating face, followed by the second offset, which shifts the stem off centerline of the pipeline. This double offset creates camming action, moving the disc away from the seat rather than across it, reducing rubbing between the disc and seat as seen in concen...
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Brief introduction of FEIDA VALVE
Nov 8,2021
FEIDA VALVE is the top ranking China double offset butterfly valve manufacturer aslo a top ranking Stainless Steel Resilient Gate Valve manufacturer. The annual output of high performance butterfly valve and stainless steel soft seated gate valve is more than 100,000,000 set. The API 607 fire safe high performance butterfly valve is also in FEIDA VALVE product range. Our fire safe butter...
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