PISTON TYPE DIGITAL CONTROL VALVE
Flow-Tek This is an electrically actuated, hydraulically operated multi-function control valve.
Used extensively in loading terminal automation systems in refineries and storage tanks of petroleum products for effective and accurate filling of tankers and railway wagons. It has two solenoid valves, receiving signal from batch controllers to position the valve for low flow/medium flow / high flow conditions as programmed.
The valve is pilot operated on a balanced piston principle. It is spring biased to a closed position. Pressure differential overcomes the force of the spring, causing the main valve to open and establish flow. The pilot control(s) vary the pressure on the spring side of the piston for position.
Digital Control Valve is designed to provide precise flow rate control and batch delivery of fluid products when used with an electronic batch control device. The valve is controlled by the electronic preset for low flow start up, high flow rate control, low flow shutdown, and final shut-off. This also provides for maximum flowmeter accuracy by maintaining a constant flow rate with varying line pressures. The Model BV88 features an external pilot control loop that consists of a normally-open solenoid pilot, a normally-closed solenoid pilot, strainer, and opening/closing speed controls.
- Food Process Industries
- Pharmaceutical Manufacturing Industries
- Industrial Manufacturing Industries
- Petroleum Industries
- Aviation industries
- Power plants.
- Process industries.
- Chemical and petrochemical plants.