SteriValves is a growing Italian company established in 1999. We specialise in manufacturing powder and bulk material handling valves and accessories so that we can offer the best solution to pharmaceutical, chemical, nuclear and food industry applications and systems around the world.

SteriValves valves are made in Italy: Our headquarters is in Lucca,Tuscany, where we design, manufacture, test and package all our quality products. Our team is composed of a dedicated group of skilled experienced professionals focused on offering our customers top quality products based on their needs.

Our customers are based outside Italy with 90% of our production sold worldwide (Europe, Asia, North and South America).

Rotometering valve

The need for precision dosing of a product is one of the most frequent request we receive from pharmaceutical and food industries. Sometimes it is necessary to divide a batch into smaller containers or packages; other times it is essential to add an ingredient to a recipe with extreme precision and speed.

In recent years our R&D department has paid special attention to this aspect, dedicated and commited to meet this growing demand. In this way we have created a new advanced solution capable of guaranteeing even greater dosing precision, speed and flexibility: the Rotometering valve.

How is it composed?

This valve is an alternative to the Rotodoser valve (our fast feed and fine dosing valve), which shares with Rotometering an important part of its design: it consists of two coaxial dosing parts (actuated independently), which determine flow of the product and its dosage.

While in both valves the main rotor ensures flow control, Rotometering precise dosage is no longer volumetric (entrusted to a mini rotor that discharges pocket after pocket as in the Rotodoser), but gravimetric (made by an open auger screw -or hydraulic screw- that guarantees continuous flow). In addition, as the auger screw is open, it will allow easy cleaning during maintenance procedure.

How Does It Work?

The main rotor discharges the product at 180 ° in the reciprocating motion; while fine dosage is carried out by the internal auger screw that rotates at 360 °.

What are the main advantages?

  • Its sanitary design
  • Allows to reach the target with greater precision and flexibility.
  • Particularly suitable for processes where product does not flow easily: the auger screw movement allows the product to be physically transferred, favoring dosing.

What are its main applications?

Ideal for weighing and packaging machines, feeding of hoppers.

Available documentation

As well as all SteriValves products, the Rotometering Valve is also designed and manufactured in strict compliance with national and international regulations and guidelines to ensure safe use. Certifications and declarations included with this valve are detailed below:

  • EN 10204-3.1 certificate for material in contact with product for metal parts
  • FDA 21 CFR 177.2600 for elastomers
  • USP Class VI (*)
  • ATEX 2014/34 / UE(*)

*Upon request


Patent EP3333553

Contact us for more info:

Ireland: Official agent: David O’Brien. Email: Phone: +353 87-6812897

Italy: SteriValves Headquarters, Via Enrico Mattei 695-55100 Lucca, Italy. Phone: +30 0583 440560. Email: