01_Series07 page 3/10

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概要：
Inherent Characteristics :Equal percentage, linear, modified parabolic or quick open.Material Combinations :A wide range of body/bonnet and trim materials are available.Plug Design Option....

Inherent Characteristics :Equal percentage, linear, modified parabolic or quick open.Material Combinations :A wide range of body/bonnet and trim materials are available.Plug Design Options :Unblanced with metal/metal or resilient seating plus balancedwith metal/metal seating and metallic or resilient piston rings.Figure 5. Single contoured plug (Balanced)Bonnet OptionsStandard, extension and cryogenic bonnet design options available.Actuation :Various types of actuation are available including ;5500 series spring opposed pneumatic diaphragm.‘C’Series spring opposed pneumatic piston.‘D’Series double acting pneumatic piston.In addition electric, electro-hydraulic, hydraulic and manually operatedversions are available. Figure 6. Double contoured plug (Over 2”)Sizing/Noise PredictionThe procedures for performing valve sizing, velocity and sound pressurelevel calculations are detailed in both the technical selection manual.3