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By astao40
#1907
Actuated Triple Eccentric Butterfly Valve
Parri Actuated triple eccentric butterfly valve requires high temperature resistance, must use metal to metal seat , but the leakage is large; If zero leakage is required, a soft seat must be used, but it is not resistant to high temperature. In order to overcome the contradiction of the double eccentric butterfly valve, the third eccentric of butterfly valve was carried out.
The biggest feature of this third eccentric is that it fundamentally changes the sealing structure, no longer a positional seal, but a torque seal, that is, it does not rely on the elastic deformation of the valve seat, but completely relies on the contact surface pressure of the valve seat to achieve the seal effect. Thus solved not only the problem of zero leakage of the metal to metal seat, but also the high pressure and high temperature resistance because contact surface pressure is proportional to the medium pressure.
Size: 2”-64”, DN50-DN1600
Pressure range: Class 150lb-600lb , PN1.0MPa-PN11.0MPa
Temperature: -196℃~+538℃
Connection: Wafer, BW, Flanged, Lug
Trim features: axial double eccentric structure, asymmetric sealing surface structure, multi-layer seat
Standard leakage class: CLASS VI
Flow characteristic: Approximate equal percentage
Adjustable ratio: 30:1(Below class 600 or PN11.0MPa less than DN600)
Leakage standard: ANSI B16.104, API598
Actuator: Pneumatic piston, Electric, Electro hydraulic actuator
Optional: Fireproof, degreasing treatment, NACE treatment
Parts Materials:
Parri provides you a full range of actuated valves, actuators and their accessories, If you have any inquiry or question about them please contact us at sale@xaparri.com.Actuated Butterfly Valve factory
website:http://www.xaparri.com/actuated-valve/a ... fly-valve/
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