MKS Instruments 248A Flow Control Valve
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MKS Instruments 248A Flow Control Valve

• Range: 2,000 SCCM
• Fittings: Cajon 4-VCR Male
• Seal: Viton, Standard

Part Number: 0248A-02000RV

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Stock # 96246-2
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MKS Instruments 248A / B / C Flow Control Valves

  • Modulates Gas Flow to Maintain Accurate, Precise Pressure
  • Spiral Springs Minimize Friction and Hysteresis
  • Orifice Can Be Adjusted or Replaced without Special Tools


The MKS 248A / B/ C Flow Control Valves are a modified solenoid valve that, when supplied with a controlling current, are able to modulate the flow of gas. When used with a MKS controller and appropriate flow sensor, the 248 valve modulates gas flow so that pressure or flow is maintained accurately and with precision. The valve seat connected to the armature is lifted away from the adjustable orifice as increasing current is applied to the solenoid. Two spiral springs center the armature within the valve body and oppose the magnetic lifting force. These springs minimize friction and hysteresis which are the major causes of poor control performance.

An important feature of the 248 valve is its orifice which may be adjusted or replaced without special tools. Adjustment may be required to eliminate leakage across the valve resulting from normal operational wear.

Product Family: 248A, 248B, 248C, 248a, 248b, 248c, 248-A, 248-B, 248-C, 248-a, 248-b, 248-c, 248 A, 248 B, 248 C, 248 a, 248 b, 248 c

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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MKS Instruments 248A / B / C Flow Control ValvesMKS Instruments 248A / B / C Flow Control ValvesMKS Instruments 248A / B / C Flow Control Valves
MKS Instruments 248A / B / C Flow Control Valves

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Manuals, Datasheets, Drivers, Links

MKS Instruments 248A / B / C Manual (pdf) 
Link to MKS Instruments Website 

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