Soval 846-100GD The 10" Cast Iron Wafer Style Butterfly Valve Gear Drive - Stainless Disc is the only cast iron, valve gear drive operated wafer style butterfly valve you need for your waterworks, fire protection, well water, irrigation, sewage, industrial and plumbing flow control needs. Valve gear drive? Whart more can you ask for? High quality build, long lasting performance and great customer service is what has kept in business for over 50 years and we look forward to serving you into the far future for all your flow control project needs.