SISTAG is a Swiss company founded in 1964. Thanks to many years of experience and the development of innovative design, they have become recognizable for their unique solutions in the case of the most complex problems. Wey products meet the highest technological standards and are therefore applied in the most demanding industries such as petrochemical, chemical, mining, water treatment plants, etc.



Production program:

• Knife gate valves used for cut-off or flow regulation of sediments, sludge, granules, friable and abrasive materials.

Nominal size: DN50 – DN1600bigger on request
Seal material: NBR, EPDM, FPM, PUR, AFLAS, PTFE, Keramika
Operating presure / Vacuum: 10 bar, 16 bar, 25 bar, 40 bar, 100 bar / do 10 mbar
Operating temperature: -50 – 23 on maximum working pressure, 240 – 400C on atmosphere pressure



• Water control gates they are used for opening and closing canals for the needs of water supply, communal water management, flood protection, pumping stations, etc. They are made of steel of different quality and can be with manual, pneumatic or electric motor drive.

• Dismantling pieces, butterfly and check valves

Productiong program catalog: The_product_range_en

More company and production program information can be found at: www.weyvalve.com