5342 Butterfly valves
·【Main technical parameters】
Type: Flat offset casting
Valve size: U type metal ring 21"~72", multilayer compound seal 2"~ 104"
Nominal pressure: ANSI 150LB~900LB
Connection: Flanged type or wafer type
Material：A216 WCB、A217 WC5、A217 WC9、A351 CF8、A351 CF8M
extended type+231~+450℃ -46~-30℃
Notice the range of working temperature and pressure for different materials.
Packing：PTEE, flexible graphite, nickel-based wire reinforced flexible graphite
Body coating: Silver grey (epoxy resin). No coating shall be added if the body material is stainless steel.
Disc type: Three—eccentric rotary type
Seat type：U type metal ring, multilayer compound seal
Flow characteristic：approximate equal percentage
Rated travel：0~70° or 0~90°
Seat leakage：ANSI Class lV~VI
·The Wy three—eccentric metal seal butterfly valve adopts metal U type elastic seat. The seat is floating type, with the automatic center adjusting function, good sealing performance, and self—cleaning and shearing function. It is suitable for media containing granules and fibers.
·The three—eccentric multilayer compound seal adopts stainless steel sheet and elastic sealing sheet, which makes use of the unique cam effect and thoroughly eliminates instant dropping of seat and seal ring during valve opening and closing at 900 travel, and eliminates friction and wear.
·The disc adopts three—eccentric structure, and the sealing face adopts hard alloy overlaying welding with good anti—wear performance.
·The seat has self—compensation structure, which enhances the service life of valve.
·The valve flow characteristic is approximate equal percentage curve, It can be used for control and shut—off.
·It meets the AP1607 fire—proof requirements.
·【Scope of application】
The pneumatic/electric butterfly valve is widely used for local automatic adjustment and remote automatic adjustment during production in metallurgy, petroleum, chemical industry, light industry, electric power and other industries.