Flowmeter with Precision Needle Valve (for Accurate Flow Control) The Model RK1250 Series Flowmeter is a completely renewed model of existing RK1200, designed as a flowmeter that can be integrated into the customer’s equipment. A 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. Clamped together with the panel cover □ For integration into your equipment panel F □ or gas devices to be used on the semiconductor manufacturing site □ For biotechnology industries □ For vacuum line control Fixing nut (Standard accessory) Pressure gauge Into air When no load pressure loss is present Pressure gauge regulation valve Needle valve at the bottom of the flowmeter Pressure gauge (0.1 MPa graduations) Flush type mounting Load When load pressure loss is present Mounting on the panel surface Pressure gauge regulation valve Needle valve at the top of the flowmeter (0.1 MPa graduations) Dimensions of parts per length designation code Code ■ Example of Use with Model RK1250 Flow Meter C □ apable 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. T □ he 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. W □ ide variations Four total lengths of the flowmeter are available: 126, 156, 206, and 256 mm, for your selection according to your needs. T □ wo 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. M □ easurement and control of water flows also possible Measurement and control of water flows not exceeding 1 L/min are also possible. Flush type mounting Mounting on the (Clamped together with panel surface the panel front

■ Standard Specifications 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 Standard fluid: Water For other liquids, consultation is necessary regarding whether conversion conditions or calibration by actual liquid is to be used. Flow range 0.5-5 mL/min to 3-30 L/min (See the Capacity Table below.) * Optional: 0.5-3 mL/min 0.5-5 mL/min to 0.1-1 L/min (See the Capacity Table below.) * Optional: 0.5-3 mL/min...