impulse dosing valve

Impulse dosing valve for industrial, technical lubricants

Volumetric lubricant dosing – contactless, reproducible, fast. Dose in a reliable process, using the SOMA impulse dosing valve (IDV)'s patented non-contact dosing method for lubricants, for example for grease dosing.

SOMA IDV Impulse dosing valve for lubricants and greases.

The patented dosing valve for industrial lubricants is the result of several years of experience in developing and producing components in the field of volumetric lubricant dosing. The impulse dosing valve is in its element wherever lubricant quantities have to be dosed with positional accuracy and in a precise volume. It is controlled by a monostable, quick-acting pneumatic valve and achieves up to 20 dot-shaped doses per second. Different dosing volumes are therefore possible with a corresponding number of controls with only one IDV without significant loss of time.

Advantages of impulse dosing valve

  • Patented non-contact dosing method for lubricants
  • Can be used in automated handling systems thanks to compact design and positional independence
  • High process and repeat accuracy thanks to the volume principle
  • Low medium upstream pressure to avoid lubricant segregation
  • High dosing speed up to 20 Hz. Complete monitoring in combination with SOMA DIS

Areas of application

Whenever it is difficult to reach the area to be lubricated for geometric reasons, the SOMA IDV impulse dosing valve proves its benefits. Contactless lubricant dosing eliminates the need for additional movements in the system. The high speed also enables a large volume discharge as well as a bead-like application. In combination with the DIS dosing inspection system from SOMA, IDV allows complete process reliability.

Technical data – Impulse dosing valve

An overview of the most important technical data for the SOMA impulse dosing valve.

Technical data IDV 2 IDV 3
Dimensions (L x W x H): 200 mm x 40 mm x 40 mm 200 mm x 40 mm x 40 mm
Dosing medium: NGLI 1 - 3
NGLI 1 - 3
Medium form:
0.5 - 12 bar
0.5 - 12 bar
Dosing frequency (fmax):
20 Hz 20 Hz
Dosing volume: 1 - 18 mm³/dosing impulse (IDV 2)
5 - 45 mm³/dosing impulse (IDV 3)
Dosing medium hose:
Ø 10 mm, Ø 12 mm, length depending on dosing medium
Ø 10 mm, Ø 12 mm, length depending on dosing medium
Dosing nozzles:
0.4 / 0.6 / 0.8 / 1.0 / 1.2 / 1.5 mm / special nozzles
0.4 / 0.6 / 0.8 / 1.0 / 1.2 / 1.5 mm / special nozzles
Compressed air supply between IDV and quick-acting valve:
Ø 4 mm, length < 300 mm
Ø 4 mm, length < 300 mm
IDV-PV supply hose:
Ø ≥ 6 mm
Ø ≥ 6 mm
Air pressure:
4 - 7 bar
4 - 7 bar
Air consumption:
13 l/min
13 l/min


SOMA contact person and contact for questions about dosing valves - Marc Schorlemmer

Advice on dosing technology and dosing valves

Do you have questions about grease and lubricant dosing? We are happy to help. Talk to me.

Personal contact person

Marc Schorlemmer
Phone: +49 2355 50828-941
Email: dosing@soma.de


SOMA dosing valves – the operating principle of the IDV

The SOMA impulse dosing valve, from our dosing technology segment, is designed in line with a modular principle and made entirely of stainless steel.

SOMA dosing valves – the operating principle of the IDV

The medium to be dosed is fed to the IDV via the valve connection block with a static pressure of 0.5 to 12 bar, where a non-return valve in the valve's dosing chamber prevents an uncontrolled release. Triggered by a quick action valve, the dosing piston in the valve cartridge is abruptly pressurised and plunges without clearance into the dosing chamber at high speed. The tensioned column of lubricant is driven towards the dosing nozzle and opens the non-return valve.

The great force of the impulsive compression stroke causes the lubricant to emerge from the nozzle with a high kinetic energy and correspondingly high flow velocity. The abrupt stop of the dosing piston at the configurable end stop causes it to break off at a specified point, achieving a precisely targeted lubricant application. The dosing volume can be set manually using the rotary valve cylinder, which restricts the stroke of the dosing piston.

Combination of accessories with the modular principle

The modular principle allows the best possible adaptation to the specific lubricant properties and dosing specifications by combining different individual component dimensions with optional accessories.

Special nozzles according to customer requirements

Designing a special nozzle that matches your application, whether that is multiple nozzles, internal or external greasing, is not a problem. Based on production-related tests and our many years of experience, we adapt the required nozzles individually to your application and requirements.

Accessories for adaptations

  • Valve cartridges with different dosing piston diameters for dosing volumes of 1 mm³ - 45 mm³
  • Standardised exchangeable nozzles with nozzle diameters of 0.4 mm - 1.5 mm or application-specific special nozzles
  • Adjustable valve heating to improve flow properties and avoid ambient temperature influences

Impulse dosing valve components

  • Valve cartridge
  • Valve connection block
  • Nozzle adapter
  • Interchangeable nozzle

Service performance as the key to success

Your requirement is our challenge

Reliable technology partner

The variety of industrial lubricants and their fields of application as well as the product-specific dosing requirements often require a dosing component that has been individually adapted to the task at hand.

Based on the required expertise and the technical possibilities, we offer you comprehensive services; from conducting a feasibility analysis to coordinating the dosing components and providing an automated system solution.

As a reliable technology partner, we stand by your side in every project phase and have the right solution for your application and requirement.

Download SOMA Dosing Technology Product Catalogue

 Product catalogue

Browse through our product catalogue online and learn more about our dosing technology products. You can find a Polish version to download under Partner / International.

View now
SOMA supports you in all phases of your project

We support you in all phases of your project

SOMA is at your side as a reliable technology partner in every project phase – design, implementation, training and after-sales. You can count on our experienced team and our expertise.

Non-binding and personal advice

Sometimes you need quick and straight-forward help. We are here for you.

Telephone: +49 2355 50828-0
Email: info@soma.de