MSV-100® Control Valve for Medium Service Applications
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MSV-100® Control Valve for Medium Service Applications DFT® MSV-100® Control Valve DFT® designs products using the latest CAD, FEA, and CFD design technology software and manufactures in Exton, PA

Features & Benefits of DFT® Control Valves Compact Size & Straight-thru Design Wide Range of Applications • Straight-thru Venturi design results in smooth flow transitions – no torturous path • The MSV-100®is designed for ANSI Class 600, Class 900 and Class 1500 applications • Straight-thru flow path reduces turbulence and results in high pressure recovery • Gas, Liquid, Steam, and Slurry applications • Pressures up to 3,750 PSIG • Temperatures up to 1,000 F Larger Cv’s and Higher Flow Capacity • High Pressure Recovery results in higher Cv’s • Fine Modulating Control with 200:1 Turndown...

Control Valve for Medium Service Design Features DFT® Model MSV-100® Control Valve Features Codes & Standards • Valve body sizes: 1” to 4”* • Pressure class: ANSI 600, 900, and 1500 • Maximum pressure of 3,700 psig • Pressure differential > 1000 psi (69 bar) • Maximum temperature to 1000ºF ( 538ºC) • Body: Carbon, Alloy, or Stainless steel • ANSI Raised Face Ends • Top entry to internal trim • Flow characteristics: Linear • Pneumatic, Electric, or Manual Actuation • Modulating or On/Off Service • Gas, Liquid, and Steam Applications • Class V shutoff * Larger sizes, consult factory. Venturi...

MSV-100® Control Valve Nomenclature 1. Outlet Liner 2. Outlet Gasket 3. Body 4. Stem 5. Bonnet Stud 6. Bonnet Nut 7. Bonnet 8. Gland Follower Stud 9. Gland Follower Nut 10. Gland Follower 11. Gland 12. Packing Set 13. Cage 14. Ball 15. Seat 16. Bonnet Gasket 17. Cartidge 140 Sheree Blvd. P.O. Box 566 Exton, PA 19341-0566 e-mail: dft@dft-valves.com internet: www.dft-valves.com

Materials of Construction* COMPONENT CARBON STEEL ALLOY STEEL STAINLESS STEEL Bonnet/Bottom Cover Stellite / Stellite lined Carbon Steel TRIM STYLE Ball 422 SS Heat Treated & Hardened Teflon Chevron Style Packing Bonnet Spiral Wound Gasket 304/Graphite * Standard materials of construction are shown. NACE, corrosion resistant, and other special trims available upon request. Contact the factory for more information. DFT® and MSV-100® Registered Trademarks of DFT® are Inc. All other trademarks are the properties of their respective owners and are used for purposes of identification only. Face...

Energy per unit volume at inlet = Energy per unit volume at outlet P1 + 1/2ρv12 + ρgh1 = P2 + 1/2ρv22 + ρgh2 Where: P = Pressure Energy; 1/2ρv2 = Kinetic Energy; ρgh1 = Potential Energy The best example of the Bernoulli Principle is often called the “Bernoulli Effect” which states that fluid pressure decreases as fluid velocity increases and visa versa. The illustration on the left shows the typical change in pressure and velocity as the fluid moves through the valve. As the fluid flow enters the valve inlet it is introduced to and moves through a Converging Nozzle. As the fluid moves...

DFT® Control Valve Operation Full Open Position In the full open position a straight-thru flowpath exists and the valve operates with the inherently high flow capacity of a venturi. The ball is firmly held out of the flow stream by four inclined pads on the cage which oppose the pressure differential force. The Bernoulli pressure differential moves the suspended particles towards the center of the fluid stream, preventing them from settling out into the body. This keeps the valve clean and free of material deposits in all positions during the valve stroke. Intermediate Throttling Position...

Trim Type Trim characteristic Top guided, unbalanced, single seat trim. This style trim is suitable for pressure drops up to 600 psi in a non-cavitating environment. Your most economic choice for standard control applications. Up to 6” Standard Class 150 Class 300 Quick Opening Linear Equal % MSV-100® Venturi Ball Design Our unique venturi ball design provides superior control, long life and low maintenance costs for moderate pressure drop applications. The MSV-100® is designed for flanged applications. Seat replacement is accomplished on the bench. Up to 4” Moderate Class 600 Class 900...