# Bertfelt Teknik AB: Constant Flow Valves for the Industry

> Save water with our BT\-Maric Constant Flow Valve\. For industrial use \- reliable, self\-regulating and self\-cleaning valves\.

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## Pages
- [Constant flow valves](https://www.bertfelt.com/constant-flow-valves/)
- [Flow Regulator — Pressure\-Independent Mechanical Flow Control](https://www.bertfelt.com/flow-regulator/)
- [Durchflussbegrenzer](https://www.bertfelt.com/constant-flow-valves/)
- [Durchflussbegrenzer, Typ Einsatzhülse](https://www.bertfelt.com/constant-flow-valves/type-inserts/)
- [Home DE](https://www.bertfelt.com/)

## Posts
- [Jämn fertigation är inte ett pumpproblem\. Det är ett flödesproblem — och det är redan löst\.](https://www.bertfelt.com/uniform-fertigation-is-a-flow-problem/)
- [Uniforme fertigatie is geen pompprobleem\. Het is een debietprobleem — en het is al opgelost\.](https://www.bertfelt.com/uniform-fertigation-is-a-flow-problem/)
- [La fertirrigación uniforme no es un problema de bomba\. Es un problema de caudal, y ya está resuelto\.](https://www.bertfelt.com/uniform-fertigation-is-a-flow-problem/)
- [Uniform fertigation isn't a pump problem\. It's a flow problem — and it's already solved\.](https://www.bertfelt.com/uniform-fertigation-is-a-flow-problem/)
- [La fertigation uniforme n'est pas un problème de pompe\. C'est un problème de débit — et il est déjà résolu\.](https://www.bertfelt.com/uniform-fertigation-is-a-flow-problem/)

## Categories
- [CASE Studies](https://www.bertfelt.com/case-studies/)
- [APPLICATIONS](https://www.bertfelt.com/applications-of-our-constant-flow-valves/)
- [Video instructions](https://www.bertfelt.com/video-instructions/)
- [CORPORATE and News](https://www.bertfelt.com/corporate-and-news/)
- [How to save water](https://www.bertfelt.com/case-studies/case-how-to-save-water/)

## Optional
- [Sitemap index](https://www.bertfelt.com/sitemap_index.xml)