Efficiency and Precision: GF modernizes its Seewis site
At its Seewis site, GF manufactures plastic valves and actuators. As part of the modernization, GF has built a fully automated storage system with more than 60’000 slots and installed a new assembly line for ball valves. The facility is now also CO₂-neutral.
After two years of construction, GF has completed the modernization of its Seewis site. For more than 50 years, the plant has specialized in the production of high-tech plastic valves and actuators for the reliable transport of water and chemicals in a wide range of industrial and infrastructure applications.
With the new high-bay storage system, GF relies on state-of-the-art technology: an automatic small-parts warehouse with nearly 60’000 storage locations and an automatic pallet warehouse for 2’390 pallets increase efficiency. Thanks to expanded capacity, optimized processes, and an innovative warehouse management system, customers benefit from improved product availability and faster order processing.
At the same time, a new assembly line for the 542 and 546 Pro ball valves, available in various materials such as PVC-U, PVC-C, and PP-H, ensures more efficient production. The new system increases product quality by precisely controlling assembly steps and automatically adjusting them whenever optimization is required. In addition, it can be converted faster and more flexibly, allowing products to be reproduced at shorter intervals. This results in smaller inventories, better availability, and shorter delivery times for customers.
Oliver Hilbrand, Plant Manager Seewis at GF, on the modernization: "Seewis has shaped the plastic valve industry with groundbreaking innovations. Our goal was therefore to significantly increase efficiency in all areas – from production to logistics to energy use. Higher availability, shorter delivery times, and greater sustainability are key factors that provide real added value to our customers."
These measures were accompanied by substantial investments in sustainability. The Seewis site has switched to 100% renewable electricity, including its own solar power generation. At the same time, GF has reduced its energy demand through more energy-efficient injection molding machines and lighting systems, as well as through heat recovery and improved insulation.
Cutting the ribbon after modernizing the plant – f.l.t.r. Andreas Müller (CEO GF); Daniel Capaul, Department of Economy Grisons; Oliver Hilbrand, Plant Manager GF Seewis; Kurt Kuster, President Seewis; Thomas Hary, President GF Industry & Infrastructure Flow Solutions (GF IIFS); Nicolas Schulz, Global Chief Operations Officer GF. And in the background the employees of the Seewis plant. Source: GF
The modernized Seewis plant. Source: GF
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GF, with a rich history in industrial innovation since 1802, is actively reshaping itself to become the global leader in Flow Solutions for Industry, Infrastructure and Buildings. GF delivers Excellence in Flow through essential products and solutions that enable the safe and sustainable transport of fluids worldwide. As part of its strategic transformation, GF divested GF Machining Solutions on 30 June 2025 and has signed an agreement to divest its GF Casting Solutions division. Headquartered in Switzerland, GF employs about 15’700 professionals and is present in 46 countries. GF generated sales of CHF 4’776 million in 2024. GF is listed on the SIX Swiss Exchange.