CAR non-return valve

A non return valve (or check valve) allows for the control of the direction that the fluid circulates. This system lets the fluid pass through

  • 3A
  • CE
  • CRN
  • FDA

The benefits

Certified hygienic design, without retention zone

Low opening pressure of the plug

Minimum pressure drop in the flow direction

Maintenance and setup facilitated thanks to a nut of hygienic design

The product features

DN 1/2″ to DN 125

  • SMS, DIN or US versions.

Hygienic and sturdy design

  • Mass-machined body

3 end connections

  • Butt weld
  • Clamp clamp
  • Between flanges.

Metal metal version, optional

  • Adapted to abrasive product or fluid with particles.

2 types of sealing

  • Elastomer (EPDM or FKM)
  • PFA, 3A certified.


  • Adapted to CIP circuits and aggressive products.

CAD 3D 2D ePortal

Go to our symbols Library 2D or 3D, available in all CAD formats 2D, 3D, native or neutral. Select and download the symbols from our online configurator.

Application domains

Cleaning products | Pet/Animal Food | Pharmaceutics | Cosmetics | Babyfood | Food industry

Cleaning products

We propose various ranges of products that adapt to local cultures and to chemical and hygienic constraints. It is the guarantee of a high level of reliability, an essential challenge in the sector and a decisive argument for consumers.

Pet/Animal Food

Because the wellbeing of their pets is the center of interest to their owners, the quality of our products must be at the center of our thinking. Supporting our customers in pet food production allows them to comply with the demands of the market


The Pharmaceutical market requires a strict control of the production line, at the same time being efficient and secure. In this extremely demanding sector, rigor is required, thus, the absence of retention zones of our products in the processes.


In a costly market in terms of production and consumption, it is fundamental to avoid wasting resources. Notably, thanks to our pigging solutions and our long lasting leakproof products, we supply you with the tools needed to reach optimum productivity.


Thanks to the hermetic properties, complying with qualificative hygiene and security standards, of our range of aseptic valves, your production line will be assuredly performant. Because our babies and toddlers deserve quality products.

Food industry

Our different range of products are designed to cover a vast array of food processes. Our valves are designed to last for today and tomorrow; with the aim of healthy food and quality for everyone.


Definox offers a range of services to support and advise you; spare parts management, valve retrofitting, personalized follow up program for valves and intervention schedules, valve maintenance training or even testing on our test bench. As many services to fit your needs.

Our experts are
with you anywhere in the world

Customized solutions

DEFINOX accompanies you in managing hygienic process issues through our products guaranteeing your satisfaction and the respect to your process,

DEFINOX Service Training Certification Datadock

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