Kofloc RK1450 High Precision Flow Meter for Sensitive Measurements

Kofloc RK 1450 Series High Precision Flowmeter

This top-grade high-precision area flowmeter is a fruit of KOFLOC’s challenge to boost the general perception currently conceived by people of the flowmeter of being a “mere yardstick” into a new conception that a flowmeter is a “precision instrument.” This flowmeter particularly features its uniquely precision-formed glass tube and ultra-precision ball float.


  • Capable of measuring ultra-minute flows
    Can measure a wide range of flows from ultra-minute flows of 0.5-3ml/min to flows of 3-30l/min.
  • High precision measurement
    High precision measurement of flows is available up to±2% of full scale (standard specification)or to±1% of full scale(optional specification).
  • Wide variations
    A broad range of variations is available in total length, materials of construction, flow rate, pressure, scale, and so forth to meet diverse applications from a variety of fields.
  • Capable of measuring all kinds of gases
    Practically all kinds of gases can be measured, not to mention those standard(Air, N2, O2, H2, He, Ar and CO2).
  • Measurement of water flows also possible
    Measurement of full-scale water flows not exceeding 1l/min is also possible. (Dimensions may vary depending upon the specified maximum flow rate.)


  • For integration into your equipment panel
  • For flow inspections at a laboratory
  • For semiconductor manufacturing equipment
  • For biotechnology industries

Standard Specifications

  •  Fluids :
    •  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
    • Liquids: Standard fluid: Water For other liquids, consultation is necessary regarding whether conversion conditions or calibration by actual liquid is to be used.
  •  Flow range :
    • Gases: 0.5-5 ML/MIN to 3-30 L/MIN (See the Capacity Table below.)
    • Optional: 0.5-3 ML/MIN
    •  Liquids: 0.5-5 ML/MIN to 0.1-1 L/MIN (See the Capacity Table below.)
    • Optional: 0.5-3 ML/MIN
  •  Accuracy :
    • FS±2% (Measurement point) * Optional: FS±1% (Measurement point)
    • FS±2% (Measurement point)
  • 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
    • 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 : 10:1 * 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)

Contact us : sales@wmablog.com or visit to our E-Commerce


Rudy Wiratama


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