The Benefits of the MSV-100® Control Valve

What is the MSV-100® Control Valve?

The DFT® model MSV-100® control valve is a flanged medium service control valve available in the 600, 900, and 1500 class range that can handle a wide variety of fluids, including gases, liquids and steam. In addition, this valve can withstand high pressures up to 3700 psig and temperatures up to 1,000°F

DFT® has manufactured world-class valves for over 75 years. The following blog and video provides an overview of the MSV-100® control valve along with its features, benefits, and common applications.

The MSV-100® features an inline straight-thru venturi flow design which is cavitation resistant. Here you see pressurized upstream fluid filling the pipe, seating the ball, and achieving FCI 70 Class V type shutoff:

Medium Service Control Valve MSV-100

As the MSV-100® valve opens, the fluid jet impinges upon the downstream replaceable liner which is hardened to prevent excessive wear. As a result, thru-body wear does not occur.

MSV-100 Class V Shutoff

The DFT® MSV-100® is a position seated design and the control element is a ball that is guided by the cage that positions it relative to the downstream seat by means of linear stem travel. The flow characteristic of the DFT® control valve is essentially linear over the complete stroke as shown here:

MSV-100 Linear Flow Characteristics

At the intermediate position where the valve is designed to throttle, the MSV-100® provides fine modulating control.

MSV-100 Control Valve Controllability

As the valve fully opens, it operates as a true venturi that can handle high-pressure drops. In the fully open position, if the fluid cavitates, this will occur in the mid-fluid stream, away from the valve body and pipe walls. The MSV-100® features trim that is easily replaceable on the bench and requires no special tools. This minimizes maintenance, downtime, and lowers the overall cost of ownership. Various trim sizes are available depending on the required flow capacity.

You May Also Like: MSV-100® Control Valve Cut Sheet

msv 100 control valve catalog

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What Industries Use the MSV-100® Control Valve?

The MSV-100® can be used for fluid, gasses, liquids, and steam. It has many applications across a variety of industries. Below is a partial list of applications this valve can be commonly used for:


  • Attemperator
  • Boiler Feed & Discharge
  • Chemical Lines
  • Condensate Lines
  • Crude & Refined Product Lines
  • Feedwater
  • Hydraulic Lines
  • Level Control
  • Pressure Control
  • Process Lines
  • Spray
  • Steam Lines
  • Turbine Bypass
  • Turbine Inlet Control
  • Turbine Drains
  • Water Lines

The MSV-100® Control Valve From DFT®

For customers that need control valves, DFT® is here to assist you. At DFT®, we offer a broad selection of check and control valves. Whether a customer requires a valve for a critical or non-critical application, we can meet their requirements. For more information about our product offerings, check out our catalog or contact us today. To receive pricing details, request a quote.

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