for Accurate Flow Control

Flowmeter with
Precision Needle Valve ( for Accurate Flow Control)

MODEL RK1250 SERIES

Model RK1250 Series
Flowmeter is a completely renewed model of existing KOFLOC RK1200,designed as a
flowmeter 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.

Features

– Capable of controlling
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.

The effective
revolving speed of the needle valve can be maximized by specifying a maximum
flow and normal supply pressure.

– Wide variations

Four total lengths
of the flowmeter are available:126,156,206,and 256 mm,for your selection
according to your needs.

– Two types of valve
arrangement

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.

– Measurement and control
of water flows also possible

Measurement and
control of water flows not exceeding 1l/min are also possible.

Applications

– For integration into your
equipment panel

– For gas devices to be
used on the semiconductor manufac-turing site

– For biotechnology
industries

– For vacuum line control

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