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 failure during fire, it can result to further damages and can endanger human lives. Such concern has prompted manufacturers to create fire safe butterfly valves.

Fire safe butterfly valves are manufactured in various designs, all of which must allow them to function properly even during fire situation. The most common fire safety feature is focused on the valve's sealing capabilities. Usually, a butterfly valve with a fire safe feature comes witha two-tier sealing configuration. The main sealing seat provides positive shutoff and bubble tight sealing under normal circumstances. It is usually made of the material called polytetrafluoroethylene (PTFE) or Teflon. Although it offers some resiliency to temperature, Teflon still has a high tendency to burn during a huge fire. Once the first seating is burned, it is unable to conduct its main function. The secondary sealing seat then takes over the responsibility, enabling the valve to perform its sealing task despite the fire. The second seal is typically composed of indestructible metal materials like stainless steel, which demonstrate great tolerance to extremely high temperature.

Although the primary sealing seat guarantees a bubble tight leakage free sealing capability, the secondary sealing seat may permit minimal leakage when trying to withstand extremely high temperature during fire. The metal backup sealing seat can assume the sealing function during and after a fire. Both sealing seats are designed to make contact with a metal closure member, which is called a ball, plug or disk. This capability enables the secondary seat to perform the sealing function when the primary seat is disintegrated. Fire safe butterfly valves are high performing valves that conduct critical process line applications, which face a higher threat of fire occurrence. This type of valves is always in demand in petroleum facilities, chemical plants, hydrocarbon processing, power generation facilities and HVAC industries. They are most suitable for handling combustible fluids and gas in the process line.

FEIDA VALVE is the top ranking China double offset butterfly valve manufacture. The annual output of high performance butterfly 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 butterfly valve is certificated by American Petroleum Institute (API) according to API 607 standards.

FEIDA VALVE 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 workshop, FEIDA also produce the food-grade valves. FEIDA food-grade valve is certificated by Food and Drug Administration United States (FDA).

If you are interested in valves, you can contact us directly, email:ethan@feidavalve.com

Varyity type of FEIDA High Performance Butterfly Valve:

ENDs：

high performance butterfly valve lug

high performance butterfly valve semi lug

high performance butterfly valve wafer

high performance butterfly valve flange

high performance butterfly valve fire safe

lug double offset butterfly valve

semi lug double offset butterfly valve

wafer double offset butterfly valve

flange double offset butterfly valve

Function：

Fire safe high performance butterfly valve / double offset butterfly valve

PSA high performance butterfly valve / double offset butterfly valve

VPSA high performance butterfly valve / double offset butterfly valve

Food grade high performance butterfly valve / double offset butterfly valve

Air separation high performance butterfly valve / double offset butterfly valve

Pressure：

high performance butterfly valve Class 150

high performance butterfly valve Class 300

high performance butterfly valve Class 600

Operation：

punamtic high performance butterfly valve

electrical high performance butterfly valve

Material：

carbon steel high performance butterfly valve

stainless steel high performance butterfly valve

c95800 high performance butterfly valve

Nickel aluminum bronze high performance butterfly valve

Hastelloy high performance butterfly valve

2205 high performance butterfly valve

duplex stainless steel high performance butterfly valve