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Flow Control Valves

Key Instruments offers control valves for low flow OEM, laboratory instrumentation, or bench top flow control applications. The valve designs and material make them suitable for use with a variety of gases and fluids.

Complete valves are available in straight through or 90 degree angle body configurations and are constructed of brass or stainless steel. All valves are supplied with 1/8" FNPT inlet and outlet ports. The valve cartridge may also be integrally mounted in flowmeter assemblies. The economical cartridge valve (CVS) is available in three different needle tapers which cover our entire flow range. These units have a rising stem and provide nine turns from closed to full open.

The precision control valve (CVP) features a non-rising stem and is available in eight different needle tapers, for fine control of very low flows. This valve offers sixteen turns from closed to full open. Its design eliminates saw-toothing and is virtually hysteresis free. All materials are matched for similar coefficients of expansion.

Features

• All designs are panel-mountable
• Positive shutoff
• Straight-through (180°) or right angle (90°) flow paths
• Interchangeable needle tapers
• 316 stainless steel or brass
• Flow ranges from 5 CMM to 68 LPM of air
• Standard valve 9 turns to full open
• Precision valve 16 turns to full open

CVS Flow Control Valves

CVP Flow Control Valves

CV7500 Flow Control Valves

 
Materials of Construction
BODY VALVE STEM SEALS ORIFICE MAX TEMP MAX PRESSURE
Nickel Plated Brass 316 Stainless Steel Nitrile 316 Stainless Steel 130° F 250 PSIG
316 Stainless Steel 316 Stainless Steel Fluorocarbon Kel - F 250° F 250 PSIG
 
CVS - Standard Control Valve  

CV 7500 Series Control Valves
CLICK HERE for CVS dimensions

CVS - 1

11,000

0.027 325

0.027

CVS - 2

38,000

0.092 1,600

0.137

CVS - 3

68,000

0.164 3,150

0.263

 
CVP - Precision Control Valve  

CVP Control Valves
CLICK HERE for CVP dimensions

CVP - 1

253

0.001 17

0.001

CVP - 2

470

0.001 28

0.002

CVP - 3

1,100

0.003 74

0.006

CVP - 4

3,800

0.009 219

0.018

CVP - 5

11,900

0.029 722

0.060

CVP - 6

21,300

0.052 1,255

0.105

CVP - 7

40,000

0.097 1,335

0.112

CVP - 8

52,000

0.126 1,800

0.150

Air CV calculated based on SCFH
Water CV calculated based on GPM
*Based on 10 PSIG inlet pressure of Air, exhausting to atmosphere. Please place an asterisk at CCM Air Max Flow column as show on pdf.

 
Ordering Information
     
Ordering Information for Valve Cartridge Only   Ordering Information for Complete Control Valve

 

   
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