Precision Needle Valve ( for Accurate Flow Control)
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.
wide range of flows from ultra-minute flows of 0.5-3 ml/min to flows of 3-30
needle valve allows a delicate control of flows.
revolving speed of the needle valve can be maximized by specifying a maximum
flow and normal supply pressure.
of the flowmeter are available:126,156,206,and 256 mm,for your selection
according to your needs.
be laid out either at the top or at the bottom of the meter.Choose the type
that best suits your needs.
of water flows also possible
control of water flows not exceeding 1l/min are also possible.
used on the semiconductor manufac-turing site
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
Standard fluid: Water For other liquids, consultation is necessary regarding
whether conversion conditions or calibration by actual liquid is
to be used.
ML/MIN to 3-30 L/MIN (See the Capacity Table below.) Optional: 0.5-3 ML/MIN
ML/MIN to 0.1-1 L/MIN (See the Capacity Table below.) Optional: 0.5-3 ML/MIN
point) * Optional: FS±1% (Measurement point)
100 ML/MIN or less ; 0.7 MPa for 5 L/MIN or less ; 0.5 MPa for 10 L/MIN or
for 5 ML/MIN or less ; 0.7 MPa for 150 ML/MIN or less ; 0.5 MPa for 200 ML/MIN
components : *SS : SUS316
BS : Pyrex®, glass
*BS : NBR
Pyrex, SUS316, glass
& BS : Acrylic resin
: * SS & BS : MAX60°
: Rc1/4(Standard); Rc1/8(Optional)