Models CV SeriesService Steam, Air, Water Sizes 3”, 4" Connections 150# FLG, 300# FLG Body Material Cast SteelPlug and Seat Material Stainless SteelPMA Max. Operating Pressure UP TO 217 PSIGTMA Max. Operating Temperature SAT. STEAM TEMP @ 217 PSIGMax Air Supply Pressure 50 PSIGMax Ambient Temperature 158˚FMin Ambient Temperature -4˚F

DESIGN PRESSURE/TEMPERATURE RATING – PMA/TMA150# FLG 280 PSIG @ 122˚F 300# FLG 725 PSIG @ 122˚F

CO

NTR

OL

VA

LVES

CV Series

These Control Valves feature Cast Steel bodies with 316 Stainless Steel trim for use with Steam, Water, Glycol and other chemically compatible fluids.

The CV Series is a high performance, general service control valve designed for high control accuracy, optimized flow characteristics and extended service life. These control valves are equipped with a contoured plug design to withstand the rigorous nature of steam service and are compatible with many fluids and environments. The standard configuration has an equal percentage flow characteristic with metal-to-metal seating, spring-loaded Teflon V-ring stem packing and pneumatic actuator. The CV Series is available with both pneumatic or electric actuation.

Description & Operation

A control valve is a device capable of modulating flow atvarying degrees between minimal flow and full capacity inresponse to a signal from an external control device. Thevalve modulates flow through movement of a valve plug inrelation to the port(s) located within the valve body. Thevalve plug is attached to a valve stem, which, in turn, isconnected to the actuator. The actuator, which can be pneumatically or electrically operated, directs the movementof the stem as dictated by the external control device.

Options & Associated Control Loop Accessories

• Electric Actuators• Positioner: Pneumatic, Electro-Pneumatic or Explosion-Proof• PID Electronic Controllers (TR890 Series)• I/P converters (Model TA901)• Air Filter Regulators (Air Sets-Model TA987)• Thermocouples• RTD’s• Pressure Transmitters

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Valve Lift

90

80

70

60

50

40

30

20

10

0

100

Per

cen

tag

e (%

) of V

alve

Cv

%

www.watsonmcdaniel.com •• Pottstown PA • USA • Tel: 610-495-5131

Valve Lift (%)

Control Valves2-Way ValveCV Series Control Valve with Pneumatic Actuator

CO

NTR

OL

VA

LVES

CV Series

MATERIALS 1 Valve Body ASTM A216 WCB2 Bonnet ASTM A351 CF83 Actuator ASTM A36 Carbon Steel4 Diaphragm Nitrile 705 Yoke AISI 1050 Carbon Steel6 Valve Plug PTFE, Stainless Steel7 Packing PTFE8 Studs AISI 4340 Alloy Steel9 Hex Nuts Steel 8.810 Gasket SS reinforced Graphite11 Seat Stainless Steel12 Lock Nut Stainless Steel

Technical InformationPlug Design ContouredFlow Characteristics Equal PercentageLeakage Rating ANSI/FCI 70-2 Class IVRangeability 50:1Travel 1.18”Actuator AreaBody Design Rating Class 150/300Primary Stem Seals PTFE Diaphragm DesignDesignAction Air-to-Open

Air-to-ClosePositioner Mounting IEC 60534-6-1 (NAMUR)Stem Wiper

Tel: 610-495-5131 • Pottstown PA • USA •• www.watsonmcdaniel.com

Control Valves2-Way ValveCV Series Control Valve with Pneumatic Actuator

Multi-Spring Diaphragm

V-Ring

Semi-Rolling

112 sq. in.

Handwheel option available. Consult factory.

CV SeriesControl Valves 2-Way Valve

CV Series Control Valve SelectionModel Size Cv FLG FLG

CV Connection Full ReducedClose-Off Pressure

(PSIP) #150 #300Weight

Port Port A A B B

CV 3" 150# FLG

105 71

72

12.52 12.52 3.74 4.13

150# FLG150 [25]101

116217

CV4" 150# FLG

160 92

43

14.49 14.49 4.51 5.00

CO

NTR

OL

VA

LVES

www.watsonmcdaniel.com •• Pottstown PA • USA • Tel: 610-495-5131

CV Series Control Valve with Pneumatic Actuator

Control Signal (PSIG)

3-156-186-306-363-15

7287

174

6-186-306-36

FLG FLG#150 #300

C

6.89

7.48

D

11.61

11.61

E

16.93

16.93

Model Code Configuration Chart

Models Code Size Code Connection Type Code Actuator Code Control SignalCV1000F Full Port 19 3” 1 150# FLG PB1 Air-to-Open 00 3-15 PSIG

20 4” 3 300# FLG Fail-Close 10 6-18 PSIGCV1000R Reduced PB2 Air-to-Close 20 6-30 PSIG

Port Fail-Open 30 6-36 PSIG

Example (Air-to-Open): CV1000F-191-PB100Example (Air-to-Close): CV1000F-191-PB200

(Dimensions in Inches)

Lbs [Kg]

300# FLG185 [25]

150# FLG150 [25]

300# FLG185 [25]

Air to Open Air to Close

72

145

43

108

-

-

-

-4" 300# FLG

3" 300# FLG