Flowmeter with
Precision Needle Valve ( for Accurate Flow Control)
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.
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.
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.
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.
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.
control of water flows not exceeding 1l/min are also possible.
Applications
– For integration into your
equipment panel
equipment panel
– For gas devices to be
used on the semiconductor manufac-turing site
used on the semiconductor manufac-turing site
– For biotechnology
industries
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
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.
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
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
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
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
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)