91传媒

91传媒

product.

Double-eccentric Resilient Seal Butterfly Valve

6642 Butterfly valves

Details

·【Main technical parameters】

Body

Type: Flat offset casting

Valve size: 2"~ 40"

Nominal pressure: ANSI 150LB~300LB 

Connection: Flanged type or wafer type

Material: A216 WCB、A351 CF8、A351 CF8M、A351 CF3、A351 CF3M(according to customer requirements)

Bonnet: Standard type -29~+230℃ 

extended type +230~+300℃  -46词-30℃&苍产蝉辫;

Notice the range of working temperature and pressure for different materials.

Packing: PTEE,flexible graphite, steel 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: Double—eccentric rotary type

Seat type: PTFE/RTFE/PPL resilient soft seat

Flow characteristic: Approximate equal percentage

Rated travel:0~70° or 0~90°

Seat leakage: Zero leakage

·【贵别补迟耻谤别蝉】

·The seat is made of PTFE/RTFE/PPL resilient material, designed with special U type seal ring, having automatic compensation function and long service life.

·The disc adopts double—eccentric structure and the sea ing face is partial ball face. It forms spherical linear sealing with the seat, with good sealing performance and low opening and closing torque.

·The va ve flow characteristic is approximate equal percentage curve.  It can be used for control and shut—off.  It meets AP1607 fireproof requirements.

·【Scope of application】

It is widely used in petroleum, chemical industry, light industry, electric power and other industries, and is especially suitable for large size pipes in oil depots, oil pipe output and water treatment systems, for local control and remote automatic control during production.

·【Sample Download】

Double-eccentric Resilient Seal Butterfly Valve