Flow Meters
 High precision flow meter Lead switch flow meter  Flow meter with precision needle valve  Flow meter with precision needle valve  Flow meter with precision needle valve
RK1450 SERIES RK1970, RK1975
and RK1976 SERIES
RK1250 SERIES RK1600R SERIES RK1812/RK1814 SERIES

High Precision Flow Meter
MODEL RK1450 SERIES
 
This is an area flow meter of the highest grade. It has a glass tube prepared by unique precision molding and a super-precision ball float, pushing the generally-accepted concept ¡°Flow Meters are for approximation¡± up to the ¡°Precision instrument¡± field.

Features
Capable of measurement in an ultra-minute flow range
Capable of response to a wide range from an ultra-minute flow of 0.5 ML/MIN to a flow of 30 L/MIN.
Capable of high-accuracy measurement
This meter has the following accuracy:
Full scale¡¾2% (standard)
Full scale¡¾1% (option)
Wide variations
Products with various total lengths, materials, flow rates, pressures, and scales are available for responding to all purposes.
Capable of measuring all gases
Capable of responding to almost all gases including standard ones (AIR, N2, O2, H2, He, Ar, and CO2)
Capable of response as a meter for water
This model can be manufactured for water with a full-scale flow of 1 L/MIN or less.
(The dimensions differ from the indicated dimensional drawing, depending on the maximum flow.)
High Precision Flow Meter
Application
  • Device incorporation
  • Flow check in laboratory
  • Semiconductor-related devices
  • Biotechnology
Standard specifications
Gas Liquid
Fluid name Air, N2, O2, H2, He, Ar, and CO2 (calibration by actual gas)
For other gases, whether to adopt calibration on conversion basis or calibration by actual gas depends on separate consultation.
*Option: Scale for two types of fluid
Standard fluid (water)
For other liquids, whether to adopt calibration on conversion basis or calibration by actual liquid depends on separate consultation.
Flow range 0.5 ML/MIN to 30 L/MIN (refer to the capacity list.)
*Option: 0.5 to 3 ML/MIN
0.5 ML/MIN to 1 L/MIN
*Option: 0.5 to 3 ML/MIN
Accuracy FS¡¾2% (measuring point)
*Option: FS¡¾1% (measuring point)
FS¡¾2% (measuring point)
Pressure resistance 100 ML/MIN or less: 1.4 MPa
5 L/MIN or less: 1.0 MPa
10 L/MIN or more: 0.5 MPa
5 L/MIN or less: 1.4 MPa
100 ML/MIN or less: 1.0 MPa
300 ML/MIN or more: 0.5 MPa
Effective scale 10:1 *Option: 20:1
Materials SS BS
Body block SUS316 Brass
Taper tube Pyrex
Packing Byton
*Option: fluorocarbon resin, Kalrez, and Barflow
NBR
Float Pyrex and SUS316
Protective cover Acrylic
Temperature resistance 120¡ÆC 70¡ÆC
Connection opening Rc1/4 (standard)
Rc1/8 (option)