Top Page > Product Information > Variable Flow Meter(Rotameter) > Precision Flow Meter for Laboratory(with Stand for Precision Flow Measurement)MODEL RK1350 SERIES
Variable Flow Meter(Rotameter)
- Precision Flow Meter for Laboratory(with Stand for Precision Flow Measurement)
MODEL RK1350 SERIES - The precision rotameter product for lab use
The KOFLOC Precision Flow Meter with Tripod MODEL RK1350 SERIES is a high-precision variable area flow meter on a tripod, based on the MODEL RK1250 SERIES, with focus on accuracy, minute flow measurement and lab-use.
KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES
Quick Review
• KOFLOC RK1250 SERIES High Precision Variable Area Flowmeter
The KOFLOC RK1250 SERIES High Precision Variable Area Flow Meter is a high-grade rotameter especially suited for measurement and control of minute flow, with an industry reputation of being one of the best analog devices. The new redesigned MODEL RK1250 SERIES retains all the advantages of RK1200 in an all-new design package.
• KOFLOC 2412 SERIES Precision Needle Valve
The KOFLOC 2412 SERIES Non-Rotating Precision Needle valve allows precise and easy flow control of minute amounts of gases and liquids. The internal mechanism converts rotating movement into stable linear movements with minimal vibrations. The needle and orifice has a thermal compensating structure (US P.A.F.) of 0.3%/˚C (15˚C to 35˚C).
• Top/Bottom valve position
The KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES can have either the top (outlet) valve or the bottom (inlet) valve. There are many issues to consider in choosing the right valve position. Contact Kofloc for more information.
• 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.
• Wide flow range coverage
The KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES comes in 4 sizes of 126, 156, 206 and 256mm excluding the tripod that cover small flow ranges from 0.5 ml/min to 3 l/min to medium range of 3 ml/min to 30 l/min.
• Steel/Brass fittings
The fittings are available in either SUS316 stainless steel or brass with respective O-rings of Viton® for SUS316 and NBR for brass fittings. The flow tube is made of Pyrex®.
• Tri-flat & rib-guide flow-tubes
KOFLOC leads the industry in tri-flat flow-tube (for flows between 5 ml/min to 500 ml/min) production with superior precision. The rib-guide flow-tubes are used for medium range flows between 1 l/min and 50 l/min.
The KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES can only be used for the following gases.
Medium (gases): The KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES has been calibrated in advance using actual gas listed below.
Air, Argon: Ar, Carbon dioxide: CO2, Helium: He, Hydrogen: H2, Nitrogen: N2, Oxygen: O2
N2 equivalent conversion factor (CF) is used for other gases. Contact KOFLOC for the availability of actual gas calibration.
Customization and Optional services• Optional flow-tubes with ±1% accuracy
• Optional flow-tubes for flows between 0.5 to 3 ml/min.
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• KOFLOC RK1250 SERIES High Precision Variable Area Flowmeter
The KOFLOC RK1250 SERIES High Precision Variable Area Flow Meter is a high-grade rotameter especially suited for measurement and control of minute flow, with an industry reputation of being one of the best analog devices. The new redesigned MODEL RK1250 SERIES retains all the advantages of RK1200 in an all-new design package.
• KOFLOC 2412 SERIES Precision Needle Valve
The KOFLOC 2412 SERIES Non-Rotating Precision Needle valve allows precise and easy flow control of minute amounts of gases and liquids. The internal mechanism converts rotating movement into stable linear movements with minimal vibrations. The needle and orifice has a thermal compensating structure (US P.A.F.) of 0.3%/˚C (15˚C to 35˚C).
• Top/Bottom valve position
The KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES can have either the top (outlet) valve or the bottom (inlet) valve. There are many issues to consider in choosing the right valve position. Contact Kofloc for more information.
• 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.
• Wide flow range coverage
The KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES comes in 4 sizes of 126, 156, 206 and 256mm excluding the tripod that cover small flow ranges from 0.5 ml/min to 3 l/min to medium range of 3 ml/min to 30 l/min.
• Steel/Brass fittings
The fittings are available in either SUS316 stainless steel or brass with respective O-rings of Viton® for SUS316 and NBR for brass fittings. The flow tube is made of Pyrex®.
• Tri-flat & rib-guide flow-tubes
KOFLOC leads the industry in tri-flat flow-tube (for flows between 5 ml/min to 500 ml/min) production with superior precision. The rib-guide flow-tubes are used for medium range flows between 1 l/min and 50 l/min.
The KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES can only be used for the following gases.
Medium (gases): The KOFLOC Precision Variable Area Flow Meter with Tripod MODEL RK1350 SERIES has been calibrated in advance using actual gas listed below.
Air, Argon: Ar, Carbon dioxide: CO2, Helium: He, Hydrogen: H2, Nitrogen: N2, Oxygen: O2
N2 equivalent conversion factor (CF) is used for other gases. Contact KOFLOC for the availability of actual gas calibration.
Customization and Optional services• Optional flow-tubes with ±1% accuracy
• Optional flow-tubes for flows between 0.5 to 3 ml/min.
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Features
Applications
Standard Specifications
| Gases | Liquids | |
|---|---|---|
| Fluids | Air,N2,O2,H2,He,Ar,and CO2 （Calibration by actual gas） For other gases,Please consult us regarding conversion conditions or calibration with the actual gas to be used. *Option:Scales for two types of fluids | Standard fluid(Water) For other liquids,please consult us regarding conversion conditions or calibration with actual liquid to be used. |
| Flow range | 0.5-ML/MIN to 3-30L/MIN(See the Capacity Table on page RK1250 series.)*Optional:0.5-3ml/min | 0.5-ML/MIN to 0.1-1L/MIN (See the Capacity Table on page RK1250 series.)*Optional:0.5-3ML/MIN |
| Accuracy | FS±2%(Measurement point) *Optional:FS±1%(Measurement point) | FS±2%(Measurement point) |
| Proof pressure | 100ML/MIN or less:1.0MPa 5L/MIN or less:0.7MPa 10L/MIN or more:0.5MPa | 5ML/MIN or less:1.0MPa 150ML/MIN or less:0.7MPa 200ML/MIN or less:0.5MPa |
| Available scale | 10:1 *Optional:20:1 | |
| - | ||
| Material | SS | BS |
| Body block | SUS316 | Brass |
| Tapered tube | Pyrex | |
| Packing | Viton | NBR |
| Float | Pyrex,SUS316 | |
| Protective cover | Acrylic resin | |
| Temperatureresistance | 120°C | 70°C |
| End connection | Rc1/4(Standard),Rc1/8(Optional) | |
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