# Pentair to acquire Hydra-Stop from Madison Industries for about $290M

Pentair plc announced a definitive agreement to acquire Hydra-Stop LLC, a specialty valve maker in Burr Ridge, Illinois, from Madison Industries for approximately $290 million in cash. The deal is expected to close by the end of 2025.

- Type: Acquisition
- Announced: 2025-08-18
- Where: Burr Ridge, Illinois, United States
- Value: $290.0M
- Status: announced
- Products: insertion valves, line stops, specialty valve solutions
- Sectors: [Pumps and Valves](https://endata.com/sectors/pumps-valves.md)

## Companies

- [Pentair](https://endata.com/companies/546.md) (acquirer)
- [Madison Industries](https://endata.com/companies/702.md) (partner)
- [Hydra-Stop](https://endata.com/companies/13386.md) (target)

## Sources

- [investors.pentair.com](https://investors.pentair.com/news-releases/news-release-details/pentair-announces-definitive-agreement-acquire-hydra-stop), 2025-08-18: "Pentair plc ... today announced it has entered into a definitive agreement to acquire Hydra-Stop LLC, a leading provider of specialty valve solutions, for approximately $290 million in cash."
- [valve-world.net](https://valve-world.net/pentair-to-acquire-hydra-stop/), 2025-08-19: "Pentair plc (PNR) has entered into a definitive agreement to acquire Hydra-Stop LLC, a provider of specialty valve solutions, for approximately USD 290M in cash."
- [valve-world-americas.com](https://valve-world-americas.com/pentair-announces-definitive-agreement-to-acquire-hydra-stop/), 2025-09-04: "Pentair plc has entered into a definitive agreement to acquire Hydra-Stop LLC, an Illinois-based manufacturer of specialty valve solutions from Madison Industries for approximately USD $290 million."

---
Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.