Dispensing Valves
Precision Single Component Media Dispensing
DOPAG metering and dispensing valves are used in all parts of industry for processing low viscosity to pasty media. For these applications, a high-precision, reproducible dose is required.
These valves are available in a number of different ranges and sizes. This allows the user to select the most suitable valve for each individual application. The large number of options and the elective materials of construction maximize the valve's possible uses.
Metering and dispensing valves from Kirkco demonstrate all the qualities that are essential for optimum results in metering: high precision, excellent reproducibility and high quality standards.
Kirkco’s range includes various valve types, all of which are based on one of two dispensing principles.
Positive Displacement Metering:
The Needle and chamber metering valve work on the volumetric principal (dot application) here each cycle means that the content of the valve chamber are completely emptied upon a trigger signal. This has the advantage of high repetition accuracy and flexibility thanks to the possibility of volume adjustment.
Time and Pressure Dispensing:
On the other hand, , dispensing spray and shot valves work on different principle, where the discharged quantity is defined by material pressure and valve needle opening time. This allows for the application of small quantities from a distance as well as continuous application of any material amount.
Metering and dispensing valves are in use in DOPAG metering and dispensing systems for multi component media. They are also used extensively in single component systems with media such as greases, oils and adhesives.
Dispensing valves are used for processing low to high viscosity media. Adjusting the position of the needle in relation to its seat can control the size of the outlet orifice, thus controlling the flow rate of the material. When fully closed, the needle seals against its seat and is sealed at the throat by an adjustable packing set. The valve is constructed in two separate parts. This separation of the fluid section from the actuating air section means that it is not possible for any leaking material to flow into the actuating air cylinder and cause the valve to malfunction. Material passageways can be quickly flushed out if necessary.
Dispensing Valve Product Data and Options
- Small Material Passageways
- Extremely High Opening And Closing Forces
- Fitted With Special Adjustable Packings
- Double Acting Pneumatic Actuation
- Capable Of Withstanding High Pressures
- Electric Or Pneumatic Controlled Material Input
- Option - Wetted Parts Made Of Stainless Steel
- Option - Valve Seat And Needle Valve Made Of Hardened Alloy For Processing Abrasive Media
- Option - Handle For Electric Or Pneumatic Control