·【Main technical parameters】

Body

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

Bonnet：standard type+230~+650℃ 

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.

Trim

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

·【Features】

·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.

·【Product image】

·【Sample Download】