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Flow Control Valves
- Variable Primary Pressure Flow Controller(Not subject to supply pressure variations)
MODEL 2204 SERIES - The constant flow pressure regulator valve products
The KOFLOC Variable Primary Pressure Flow Controller MODEL 2204 SERIES is a precision pressure regulator valve for controlling minute flow and achieving constant flow under fluctuating primary pressure, designed with focus on stability, cleanness and precision.
KOFLOC MODEL 2204 SERIES Primary Secondary Pressure Flow Controller Valve
Quick Review
• Precision Control
The KOFLOC Variable Primary Pressure Flow Controller MODEL 2204 SERIES is a control valve for precise control of minute gas flow and maintaining constant flow under fluctuating primary pressure (inlet), provided the secondary (outlet) pressure remains constant.
•Cleanness
The housing of the KOFLOC Large-Flow Precision Needle Valve MODEL 2412D SERIES is thoroughly cleaned to assure flow control without contamination, suitable for highly sensitive scientific or analytical applications.
• KOFLOC Dependability
KOFLOC has 60 years of experience in manufacturing precision flow instruments. KOFLOC products, both standard and off-catalog custom items are well received throughout Japan as the name that manifests confidence. KOFLOC, the fluid expert, is the name professionals trust in precision control of minute flow.
• Non-Rotating Needle
Constructed using high precision parts, the design of the KOFLOC Variable Primary Pressure Flow Controller MODEL 2204 SERIES transforms the rotation of the regulating screw to into linear motion of the needle without subjecting it to gaps and vibrations produced by the screw, to ensure stable and even control of minute flow.
• Free from Primary Pressure Fluctuations
The KOFLOC Variable Primary Pressure Flow Controller MODEL 2204 SERIES is not affected by pressure fluctuations of the primary (inlet) system, which makes it a must-have preliminary valve in many flow control mechanisms.
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• Precision Control
The KOFLOC Variable Primary Pressure Flow Controller MODEL 2204 SERIES is a control valve for precise control of minute gas flow and maintaining constant flow under fluctuating primary pressure (inlet), provided the secondary (outlet) pressure remains constant.
•Cleanness
The housing of the KOFLOC Large-Flow Precision Needle Valve MODEL 2412D SERIES is thoroughly cleaned to assure flow control without contamination, suitable for highly sensitive scientific or analytical applications.
• KOFLOC Dependability
KOFLOC has 60 years of experience in manufacturing precision flow instruments. KOFLOC products, both standard and off-catalog custom items are well received throughout Japan as the name that manifests confidence. KOFLOC, the fluid expert, is the name professionals trust in precision control of minute flow.
• Non-Rotating Needle
Constructed using high precision parts, the design of the KOFLOC Variable Primary Pressure Flow Controller MODEL 2204 SERIES transforms the rotation of the regulating screw to into linear motion of the needle without subjecting it to gaps and vibrations produced by the screw, to ensure stable and even control of minute flow.
• Free from Primary Pressure Fluctuations
The KOFLOC Variable Primary Pressure Flow Controller MODEL 2204 SERIES is not affected by pressure fluctuations of the primary (inlet) system, which makes it a must-have preliminary valve in many flow control mechanisms.
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Features
♦ Excellent flow stabilization
♦ Clean construction
♦ Independent from supply pressure fluctuations
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♦ Clean construction
♦ Independent from supply pressure fluctuations
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Applications
♦ Scientific instruments
♦ Environmental analysis
♦ Atomic absorption spectrometry
♦ Gas chromatography
♦ R&D
♦ General industrial use
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♦ Environmental analysis
♦ Atomic absorption spectrometry
♦ Gas chromatography
♦ R&D
♦ General industrial use
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Standard Specifications
| Flow rating | 10ml/min to 10l/min |
|---|---|
| Control accuracy | Within ±2% of the set flow value to pressure fluctuations in a range of 0.3 MPa when the primary pressure (input pressure) varies between 0.07 Mpa and 0.8 Mpa. |
| Regulating screw rotating speed | 12-13 turns |
| Max. operating pressure | 0.8MPa |
| Max. working temperature | (A)70°C (SS)120°C |
| Materials of parts exposed to fluids | A:Al,Brass,Duracon,NBR SS:SUS316,Teflon,Viton |
| Connection end | Rc1/8 |
Optional Specifications
Notes
♦You may specify the fluid,pressure and flow rate of your equipment for our selection of the type that most suits your requirements.Use the values on Table of Rated Flow Ranges for reference purposes only.
♦At least an inlet/outlet pressure difference of 0.07 MPa is required.
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♦At least an inlet/outlet pressure difference of 0.07 MPa is required.
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