Kofloc Model 2600-PPS Constant Flow Valve for Liquid: This constant flow valve has been developed for use with liquids. It can control the liquid flow rate irrespective of pressure fluctuations on the primary and secondary sides. It can be used for hot water, as well.

A needle valve is the typical flow control valve that controls the flow rate based on the change of resistance of the flow channel using an acicular or rod-shaped needle to adjust the opening of the flow channel that functions as a small orifice. KOFLOC offers simple-type, precision-type and various other needle valves, and also manufactures flow controllers having a combination of a needle valve and diaphragm as well as proportional solenoid valves that electrically control the flow rate.

Features

Excellent constant flow valve characteristics for liquids
The valve composed of high-precision parts permits smooth control.
Immune to the effects of pressure fluctuations
The constant flow rate is maintained irrespective of pressure fluctuations on the primary and secondary (outlet) sides.
Control is possible from a very small flow rate in the 10 ml/min range.
An air-bleeding structure has been adopted for both upper and lower diaphragm chambers.
Air bleeding during the initial flow rate setting permits high-accuracy control.

Applications

Analyzer
Environmental instrumentation equipment
Liquid mixer

Specifications

	MODEL 2600-PPS
Fluid	H2O
Flow rating (under H2O calibration conditions)	1-10 ML/MIN
	10-100 ML/MIN
	0.1-1 L/MIN
Control accuracy Note)	±3% FS
Operating differential pressure	0.1 MPa or more
Operating pressure	0.1-0.5 MPa
Proof pressure	0.7MPa
Materials of parts in contact with fluids	PPS (containing 30% glass), SUS316, fluororubber, fluororesin
Operating temperature	0-50℃
End connection	Rc1/8
Note: The accuracy of control is guaranteed when the temperature of the liquid being
measured is constant, because viscosity changes according to the temperature.
Please contact us for the details regarding specifications.