Technology Solutions Technology Solutions
Energy Management Trim
Dresser Masoneilan provides a wide range of solutions to handle fluid energy problems.
Drilled-Hole
Technology


Dresser Masoneilan offers a wide selection of single and multiple stage trims with both balanced and unbalanced globe and angle valve configurations. These designs, based on drilled-hole technology are only recommended for clean service applications. Balanced and unbalanced anti-cavitation options are also available with metal-to-metal seating meeting ANSI Class V shutoff performance.
Axial Flow
Technology


Axial Flow trims offer multi-stage designs for the control of highpressure liquids without the damaging effects of cavitation, erosion and vibration. The unique flow design of the LincolnLog develops the required resistance for throttling but also affords ample clearance for the passage of large particulate. The optional soft seat was designed specifically for boiler feedwater applications and provides long term Class VI shut-off at the most demanding pressures. The 77000 Series is multi-stage trim designed with expanding areas for high-pressure gaseous applications.
Stacked Plate Technology

V-Log®, Energy Management Trim, is manufactured from a brazed stack of laser cut plates, each designed with a series of 90 degrees turns used to redirect the flow of the process fluid through a high resistant flow path. Each stage also includes an expansion and contraction in area for maximum pressure reduction efficiency. Further, each valve body is contoured to account for flow expansion and trim area velocity to manage the total system noise, providing our customers with the most compact energy management control valve available in the market today.
Differential Velocity Technology

Dresser Masoneilan’s patented DVD™ (Differential Velocity Device) is a highly efficient noise reduction solution for rotary valves. Building on technology used in turbo-fan jet engines, the DVD device utilizes larger diameter outer holes to create a lower velocity annular flow stream around the flow area perimeter. This lower velocity flow stream reduces noise transmission from the higher velocity inner flow, resulting in substantially lower external noise levels.
VRT®, Variable Resistance Trim, consists of a brazed stack of drilled plates which efficiently channel the flow through multiple turns in a tortuous path configuration. The design is primarily used in highpressure drop liquid applications. VRT is typically packaged within standard Dresser Masoneilan globe and angle valve bodies.
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