VDV – Volume dosing valve

With SOMA VDV volume dosing valve, lubricants are dosed at a constant volume: process-safe, volumetric and reproducible.

The SOMA volume dosing valve - VDV has been developed for use in dosing processes where the focus is on repeatable, contact dosing of precise dosing volumes - independent of fluctuations in delivery pressure and the viscosity of the lubricant to be dosed.

Designed as a modular valve in cartridge form for metering low- to high-viscosity media, the VDV is used for a wide range of lubricants, including solid lubricants. In addition, the VDV can be combined with different valve housings to form a metering station with central medium supply.

Consultation

The advantages at a glance

Continuously adjustable, reproducibly constant metering volume
High process reliability
Low medium inlet pressure to avoid lubricant segregation
Possibility of dosing solid lubricants
Can be combined to form complete metering stations with central medium supply

The VDV functional principle

The medium to be dosed is conveyed at a delivery pressure of 3 - 6 bar via the valve connection block into the dosing chamber. A back-pressure balanced poppet valve integrated in the outlet of the VDV metering chamber prevents uncontrolled leakage of the metering medium up to a pressure of 6 bar. The metering volume can be infinitely adjusted manually via the rotatable valve cylinder, which limits the stroke of the metering piston.

Controlled by a monostable 3 /2 directional control valve, the metering piston in the valve cartridge is pressurized, causing the spring-returned metering plunger to plunge into the metering chamber without play.

Sensitive metering process

In order to be able to monitor the dosing process within highly automated systems, the SOMA VDV volumetric dosing valve has the option of monitoring the dosing stroke by sensors via the movement of the check seat valve.

VDV product brochure