November 2005
Marwin Valve's CV3000 Series Characterized Ball Valve
The CV3000 Series is a v-type control valve for precise control allowing high pressure drop capability with straight-through flow and bubble-tight shutoff.
The CV3000 Series can be fitted with a wide range of v-style inserts for precise throttling control. The inserts are placed in a machined groove in the end cap behind the upstream seat to characterize the flow. The v-style insert is placed on the inlet side of the valve to protect the seat from high velocities, which can occur while controlling flow. The ball sits between two soft seats, ensuring a low torque with a bubble-tight shutoff. The insert is designed to change flow characteristics of the valve and is offered in different configurations to meet a variety of modulating applications.
The characterized insert control valve gives accurate control through the valve stoke to meet flow conditions. Different insert shapes will affect the flow rate, capacity, and inherent flow curves.
Inserts are available in Slotted, 30° Angle, 60° Angle and 90°. Materials of construction for the valve or insert include Hastelloy B, Alloy 20, Hastelloy C, Bronze, Monel, Carbon Steel, Stainless Steel, and other special materials such as Duplex, 254 SMO, and Titanium.
A variety of soft seat materials are available including PTFE, Carbon or Stainless Steel filled PTFE, Delrin or PEEK.
For more information, visit the company's website at www.marwinvalve.com.
Kyndle McMurry
Richards Industries
513-533-7345
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