Volumetric Dosing Valve

VDV – Volumetric Dosing Valve

Use the SOMA VDV volumetric dosing valve to dispense lubricants with a constant volume: reliable, volumetric and reproducible.

The SOMA volumetric dosing valve – VDV was developed for use in dosing processes exact repetition and contact-based dosing of precise volumes is the primary objective, regardless of fluctuations in feed pressure and the viscosity of the lubricant being dispensed.
The VDV is a modular valve in the shape of a cartridge, designed to dose low- to high-viscosity media. It can be used with a large range of lubricants, including solid lubricants. Interchangeable valve housings mean the VDV can also be connected to form a dosing station with central medium supply.

The benefits at a glance

  • Continuously adjustable, reproducible, constant dosing volume
  • High process reliability
  • Low primary medium pressure to prevent lubricant separation
  • Option for dosing solid lubricants
  • Can be connected to form a dosing station with central medium supply

The VDV operating principle

A delivery pressure of 3 - 6 bar feeds the medium to be dosed to the dosing chamber via the valve connection block. A dynamic pressure relieved non-return poppet valve built into the outlet of the VDV dosing chamber prevents the uncontrolled release of the dispensing medium up to a pressure of 6 bar. Dosing volumes can be manually adjusted on a continuous basis via the rotary valve cylinder, which restricts the stroke of the dosing piston.

Triggered by a mono-stable 3/2-way valve, the dosing piston in the valve cartridge is pressurised, thus forcing the spring loaded plunger into the dosing chamber without any clearance.

Sensor-controlled dosing

The SOMA VDV uses sensors to detect the dosing stroke via the motion of the non-return poppet valve so that the dosing process within highly automated systems can be monitored.

Technical data

  • Input pressure of the medium: Pmax = 6 bar
  • Compressed air supply: P = 3 - 6 bar
  • Dosing volume: V = 5 - 235 mm3 / stroke
  • Dosing frequency: fmax = 2 Hz

Product Catalog

Get detailed Information about our Dosing Technology Products at our Product Catalog online. A Polish version can be downloaded under Partner / International.

Find out
SOMA contact person and for questions about dosing valves

Consulting on dosing technology and dosing valves

Do you have questions about grease and lubricant metering? We are happy to help. Please contact me.

Personal contact

Marc Schorlemmer
Phone: +49 02355 50828-941
Mail: m.schorlemmer@soma.de