CENTRIFEEDER ICV: Integrated Control Valve

The CentriFeeder with Integrated Control Valve, or ICV, accurately measures and controls the flow of any dry, free‐flowing solid. Using a highly customizable touch screen HMI integrated with a low rpm, AC, Brushless Servo, a PID control loop is established to control the ICV feeding our patented CentriFlow Meter. For precise measurement and control, an Integral Linear Position Sensor is used to regulate the blade's position to within 1 part in 1000 (based on stroke). The blade's movement can then be monitored via the CentriView Electronics, or read manually via the mechanical indicator on the exterior of the valve. For delicate products, the CentriFeeder with ICV is equipped with a Virtual Flow Stop function which stops flow with virtually no damage to your product. The outcome is an easily maintained, consistent flow that can, under some conditions, be controlled over a 100:1 range for both batching and ratio‐control applications.

The CentriFeeder ICV is a gravimetric feeder that integrates the versatility and extremely accurate flow measurement of the CentriFlow solids flow meter, with a dynamically controlled slide gate that controls flow rate and total. As product flows through the ICV and over the measurement portion of the feeder, the flow rate of the product is measured. This flow rate is utilized to control the Integrated Control Valve located just above the flow measurement device. Based on the flow rate set point that is entered into the unit, the control valve is able to modulate in order to maintain the flow rate set point. For batching or filling applications, a total set point can also be enetered into the device, so that once the set point has been reached, the control valve will close, stopping the flow of product. The CentriFeeder ICV responds to changes in flow rate very quickly, typically within 100 ms, and can be within +/-1.00% of the flow set point within 1 second.

VOLUMETRIC CAPACITY OF THE CENTRIFEEDER ICV: GRANULAR PRODUCTS
FEEDER SIZE	MIN VOLUMETRIC FLOW RATE	MAX VOLUMETRIC FLOW RATE	MIN FLOW RATE*	MAX FLOW RATE*	TYPICAL ACCURACY**
ICV-06	1.01 ft3/min 0.03 m3/min	16.88 ft3/min 0.48 m3/min	2,775 lb/hr 1,259 kg/hr	45,000 lb/hr 20,412 kg/hr	+/-0.25%
ICV-12	2.25 ft3/min 0.06 m3/min	37.50 ft3/min 1.06 m3/min	6,150 lb/hr 2,790 kg/hr	100,000 lb/hr 45,359 kg/hr	+/-0.25%
ICV-24	4.50 ft3/min 0.13 m3/min	75.00 ft3/min 2.12 m3/min	12,300 lb/hr 5,579 kg/hr	200,000 lb/hr 90,718 kg/hr	+/-0.25%
* Based on 35 lb/ft3 Plastic Pellets with a nominal particle size of 0.15 in ** Typical Accuracy is for mapped products

BATCHING AND FILLING CAPACITY OF THE CENTRIFEEDER ICV: GRANULAR PRODUCTS
FEEDER SIZE	MIN BATCH SIZE	MIN TARGET TIME	MIN VOLUMETRIC FLOW RATE	MAX VOLUMETRIC FLOW RATE	TYPICAL ACCURACY*
ICV-06	7.00 lb 3.18 kg	5 s	1.01 ft3/min 0.03 m3/min	16.88 ft3/min 0.48 m3/min	+/-0.25%
ICV-12	17.00 lb 7.71 kg	5 s	2.25 ft3/min 0.06 m3/min	37.50 ft3/min 1.06 m3/min	+/-0.25%
ICV-24	34.00 lb 15.42 kg	5 s	4.50 ft3/min 0.13 m3/min	75.00 ft3/min 2.12 m3/min	+/-0.25%
* Typical Accuracy based on Min to Max flow over the range of the feeder for a mapped product