Chamber Metering Valve dopag

Metering Valves

Precision, repeatability, flexibility

Metering valves by DOPAG are used in all industry sectors for discharging low to high-viscosity media. They feature high precision and very high repeatability with regard to discharge quantity. These valves are available in different series and design sizes. Due to the variety of valve types, there is a perfectly suitable valve for each individual application.

DOPAG has a comprehensive range of metering valves that are used to apply accurately metered shots of media in many different processes and in a variety of industries, from the application of precision shots of oil or grease to automotive components to dosing silicone into cartridges. DOPAG metering valves are available in three different designs, all of which work on a volumetric principle. These can handle all types of media from low to high viscosity, such as adhesives, sealants, greases, oils, pastes and silicones. All DOPAG metering valves are pneumatically actuated and cover metered shot volumes of between 0.001ml and 100ml. To ensure that the metered volume of media is applied to the workpiece in exactly the right position, unique, purpose designed fixtures and adaptors are available.

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Category:

Description

Types of Metering Valves

Chamber Metering Valve

Chamber metering valves are used for dot application of low to high viscosity media. Compared to the needle metering valve, they offer a larger range of shot sizes. Thanks to an innovative design that features a ‘snuff back‘ effect, these valves are characteristic for their high process stability and dripfree application when dispensing low-viscosity media.
The shot size is determined by the chamber volume, which can be adjusted within a predetermined range using a stop screw. The metering cycle is controlled either pneumatically or electrically via a solenoid valve. This valve series allows a highly repeatable metering of small quantities up to 100 ml within short cycle times. Manual application with a handle is just as possible as the integration into a fully automated process.

Chamber Metering valve: Extremely accurate and drip-free dosing of fluids

Features

  • Dot application (volumetric metering)
  • Shot size 0.05 – 100.00 ml (depending on model)
  • Material input pressure 40 – 80 bar
  • Compatible with stroke detection
  • Snuff -back eff ect

Options

  • Solenoid valve plate 24 V
  • Signal generator with various cables
  • Various adapters and needle tips
  • Pneumatic or electric handle

Needle Metering Valves

Needle metering valves are suitable for dot application of low to high viscosity media. With this series, very small quantities of up to 3ml per shot can be discharged with high reproducibility and short cycle times. The valve consists of two structurally separate parts, meaning that material cannot leak into the drive cylinder and interfere with the movement of the valve needle. This feature makes the needle metering valve an exceptionally reliable and low-maintenance piece of metering equipment.
Shot size is determined by the volume of the valve chamber, which can be adjusted within a predetermined range using a stop screw. The metering cycle can be controlled either pneumatically or electrically via a solenoid valve. DOPAG needle metering valves are perfectly suitable for manual applications with a handle as well as for fully automated processes.

Needle metering valves: Fast and accurate dosing of low to high viscosity media

Features

  • Dot application (volumetric dispensing)
  • Shot size 0.001 – 3.00 ml (depending on model)
  • Material input pressure 3 – 50 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
  • Micro-flow sensor
  • Pneumatic or electric handle

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