Sanitary tank bottom discharge valves sit at the lowest point of a tank or vessel. They drain product fully while keeping the process hygienic. Their dead-leg-free, residue-free, and leak-free design makes them suitable for dairy, food, beverage, pharmaceutical, and fine chemical production. Hansheng Automation can machine valve bodies, seats, and seal retainers to customer drawings when a standard valve does not match the tank geometry.
Dairy Processing
Milk, Yogurt, and Cheese
In dairy production, sanitary tank bottom discharge valves drain milk, yogurt, cheese, and similar products. The valve design leaves no dead corners and no residue, so the product is not contaminated during discharge. This meets dairy hygiene standards. The valve also supports cleaning in place, which helps keep the tank outlet free of buildup between batches.
Food Processing
Jams, Condiments, and Canned Foods
Food processing uses these valves to discharge jams, condiments, canned foods, and other products. Their sealing performance and cleanability help the discharge step meet food safety requirements and avoid cross-contamination between batches. When a replacement valve body or seat is needed, we can machine it to drawing so the fit matches the existing tank outlet.
Beverage Production
Juice, Carbonated Drinks, and Tea
Beverage plants use sanitary bottom discharge valves for juice, carbonated drinks, tea drinks, and similar liquids. The valves are quick to disassemble and flexible in installation. This keeps the beverage line running efficiently while maintaining hygiene and product safety.
Pharmaceutical Manufacturing
Liquids, Vaccines, and Serum
In pharmaceutical production, these valves discharge medicinal liquids, vaccines, serum, and other biological products. The leak-free and highly clean design supports GMP requirements. It prevents contamination during material discharge. Hansheng Automation can machine non-standard valve components to customer drawings for pharmaceutical filling and transfer lines.
Fine Chemical Processing
Raw Materials, Intermediates, and Finished Products
Fine chemical production uses sanitary bottom discharge valves for various chemical raw materials, intermediates, and finished products. Their corrosion resistance and sealing performance help the process run safely and reliably. They also reduce the risk of chemical leakage into the environment.
Common Requirements Across These Industries
Hygiene and Drainability
The valve must drain the tank completely. A flat, flush tank bottom with a seat that opens fully prevents product from being trapped. This is what makes the valve suitable for hygienic service.
Materials and Seals
Product-contact parts are usually made of 316L stainless steel. Seals are selected to suit the product and cleaning method, with food-grade or pharmaceutical-grade elastomers used where required. Surface finish matters, since a rough surface can hold residue.
Cleaning and Maintenance
Quick disassembly helps with inspection and cleaning. Regular checks of the seat, seal, and actuator keep the valve working without leaks. Worn seals should be replaced before they affect product safety or cause downtime.
Our precision custom machining capability is not limited to tank bottom discharge valves. Hansheng Automation also produces parts for filling machinery, tobacco packaging machinery, and food processing equipment, along with precision components for yachts and RC cars. From functional components for filling lines to structural parts for yacht and RC car assemblies, we machine to customer drawings and deliver parts ready for installation.
