Handheld dispensing valves
For manual dispensing of grease and oil
The handheld dispensing valve draws on the tried and tested dispensing valves made by DOPAG. Having been developed specifically for use in manual applications, the handheld dispensing valve is an excellent performer in applications where grease or oil are dispensed continuously by hand. The shot volume is regulated by adjusting the valve opening time and material pressure. Additional components for measurement and control are available. The handheld dispensing valve is mounted vertically and allows access even to hard to reach areas. Due to its user-friendly design, the handling is simple and quick.
For volumetric dispensing and dot application DOPAG recommends the handheld metering valve.
Features
- Type: LW2.5 (based on the dispensing valve)
- Only available as a complete assembly
- Pneumatic or electronic version
- For vertical mounting on a balancer or similar
- Ergonomic handle
High-speed valves
Contactless application of lubricants from up to 120mm distance
The high-speed valve is used in contactless (from a distance) applications of grease and oil where stringing must be avoided. The compact design of the valve enables an effortless and effective greasing of narrow and hard-to-reach spaces. The dot application takes place in the longitudinal direction of the nozzle with a perfect material cut off after each shot. With short cycle times, this valve is ideal for integration into highly efficient processes. Thanks to an innovative nozzle with a self-cleaning effect and an integrated filter, the high-speed valve delivers a perfectly clean application every time. An integrated heating element keeps the material properties at their optimum, ensuring high process stability and reproducibility.
Features
- Shot application
- Nozzle size Ø 0.21 – 0.81 mm
- Input pressure max. 70 bar
- 24V DC solenoid valve for maximum shot frequency of 100 Hz
- Integrated 230 V AC / 155 W heating with a temperature sensor PT100
Options
- 5m cable for heating
- Light barrier for shot detection
Membrane dispensing valves
Care-free dosing of reactive, abrasive or chemically aggressive fluids
The advantage of membrane dispensing valves is their ability to process material with challenging properties in continuous shot applications. The valves are designed for care-free dispensing of low to high viscosity, filled or unfilled, abrasive or chemically reactive 1K fluids. Part of their structure is an integrated membrane that separates the pneumatic and the metering parts of the valve. As a result, only the valve head and the membrane come in contact with the material, while the material passageway can be easily flushed if necessary. The size of the orifice is regulated by stroke adjustment. Material dripping after shot completion is effectively prevented with the snuff-back mechanism. This valve is exceptionally easy on maintenance.
Features
- Continuous application (time-pressure dispensing)
- Internal diameter 2, 4 and 8 mm
- Max. input pressure 160 bar
- Snuff -back effect
Options
- Solenoid valve plate 24 V
- Various adapters and needle tips
- Pneumatic or electric handle
- Heated valve with or without plug 230 V AC / 200W
Needle dispensing valves
Clean, precise and reliable
Based on the time-pressure dispensing principle, the needle dispensing valves are most effective in continuous applications of low to high viscosity media. Consisting of two structurally separate parts, they have the advantage that material cannot leak into the drive cylinder and interfere with the valve needle movement. The size of the orifi ce is regulated by stroke adjustment. A special, adjustable seal closes the valve needle off from the valve head, ensuring a perfectly clean and precise application of every single shot. The material passageway can be flushed as and when necessary.
Features
- Continuous application (time-pressure dispensing)
- Internal diameter 1, 2.5, 6 and 12 mm
- Max. input pressure 250 bar
- Compatible with stroke detection
- Sealing available in various sizes and material finishes
Options
- Solenoid valve plate 24 V
- Signal generator with various cables
- Various adapters and needle tips
- Pneumatic or electric handle
Shot valves
An extremely fast valve that offers flexibility in material selection
Shot valves are extremely fast-switching valves designed for the application of grease and oil from distance (contactless) in automated processes. They are capable of dispensing the smallest amounts of material at the speed of up to 200 cycles per second. This is possible thanks to the integrated 5/2 way solenoid valve (also used for control), together with short paths in the entire air supply system. The valves are available with both short and long nozzles, which enables them to cover various angles of application. Depending on the nozzle size, media with different viscosities can be processed easily.
Features
- Shot application
- Nozzle size Ø 0.2 - 1.0 mm
- Input pressure max. 100 bar
- 24 V DC solenoid valve for maximum shot frequency
- 200 Hz SHV-01 / 30 Hz SHV-02
- Adjustable needle rise (raster regulation)
Options
- Stroke detection device with cable
- Nozzle extensions with various lengths and shot angles
- 24 V / 50 W heating with temperature sensor PT100
- Pressure sensor
- Light barrier for shot detection
Spray valves
Clean and accurate spray application of grease and oil
The spray valve is a special kind of valve designed for full-surface application of greases and oils. It is suitable for both intermittent and continuous material applications. A unique feature of this valve is the integration of a membrane, which is used for the adjustment of the air blow duration after each material shot - this serves the cleaning of the nozzle. Short air ways in the body of the valve and a flange-mounted 5/2 way solenoid valve allow a very fast and accurate intermittent operation. A wide range of available extensions and attachments open up the possibility of spray application in hard-to-access areas, while various aircaps allow the customisation of the spray coating pattern.
Features
- Spray application
- Nozzle size Ø 0.2 - 1.5 mm
- Material input pressure max. 35 bar
- With 24 V solenoid valve (SPV-01) / Compact construction without solenoid valve (SPV-02)
Options
- Stroke detection with cable
- Various nozzle extensions with diff erent spray cones and angles
- 24 V/ 50 W heating with temperature sensor PT100
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