Kofloc RK1250 Series Flow meter is a completely renewed model of the existing KOFLOC RK1200, designed as a flow meter that can be integrated into the customer’s equipment. A happy combination of a grade high precision float type flowmeter with a needle valve capable of very accurate flow control provides a flowmeter ideal for measurement and control of trace flows.
Kofloc RK1250 Series Features
- Capable of controlling
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- Ultra-minute flows can respond to a wide range of flows from ultra-minute flows of 0.5-3 ml/min to flows of 3-30 l/min.
- The incorporated precision needle valve allows a delicate control of flows.
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- The effective revolving speed of the needle valve can be maximized by specifying a maximum flow and normal supply pressure.
- Wide Variations
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Four total lengths of the flowmeter are available:126,156,206, and 256 mm, for your selection according to your needs.
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- Two types of a valve arrangement
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The needle valve can be laid out either at the top or at the bottom of the meter. Choose the type that best suits your needs.
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- Measurement and control of water flow also possible
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Measurement and control of water flow not exceeding 1l/min are also possible.
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Kofloc RK1250 Series Applications
- For integration into your equipment panel
- For gas devices to be used on the semiconductor manufacturing site
- For biotechnology industries
- For vacuum line control
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Standard Specifications
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Fluids :Â
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* Gases: Air, N2, O2, H2, He, Ar, and CO2 (Calibration by actual gas) For other gases, consultation is necessary regarding whether conversion conditions or calibration by actual gas is to be used.* Optional: Scale indicating two types of fluids
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*Liquids : Standard fluid: Water For other liquids, consultation is necessary regarding whether conversion conditions or calibration by actual liquid is to be used.
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Flow Range :
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* Gases: 0.5-5 ML/MIN to 3-30 L/MIN (See the Capacity Table below.) Optional: 0.5-3 ML/MIN
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*Liquids : 0.5-5 ML/MIN to 0.1-1 L/MIN (See the Capacity Table below.) Optional: 0.5-3 ML/MIN
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Accuracy :
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*FS±2% (Measurement point) * Optional: FS±1% (Measurement point)
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*FS±2% (Measurement point)
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Proof Pressure :*Gases: 1.0 MPa for 100 ML/MIN or less ; 0.7 MPa for 5 L/MIN or less ; 0.5 MPa for 10 L/MIN or more
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*Liquids : 1.0 MPa for 5 ML/MIN or less ; 0.7 MPa for 150 ML/MIN or less ; 0.5 MPa for 200 ML/MIN or more
- Available scale : 10:1Â *Optional: 20:1
- Body block and some other components  : * SS: SUS316, * BS: Brass
- Tapered tube : *SS & BS: Pyrex®, glass
- Packing : * SS: FKM,*BS : NBR
- Float : * SS & BS : Pyrex, SUS316, glass
- Protective cover : * SS & BS : Acrylic resin
- (Temperature resistance) : * SS & BS : MAX60°
- Connection :*SS & BS : Rc1/4(Standard); Rc1/8(Optional)