The transmission thread of the concealed stem gate valve is located inside the valve body. During the process of opening and closing the valve, the valve stem only rotates in place, and the opening and closing status of the valve cannot be judged by the naked eye. The concealed stem gate valve drives the gate to rise and fall by rotating the valve stem at a fixed point. When opening and closing, the steering wheel and valve stem are connected together and relatively stationary.

1. The overall rubber coated valve core is made of EN-GJS-450-10 skeleton, with high-performance rubber and the latest vulcanization technology used for overall coating on the inside and outside. It fits tightly and firmly, has excellent sealing elasticity, and achieves zero leakage.
2. Adopting a three way "O" - shaped sealing ring design, it has a tight seal, significantly reduces friction resistance, and is environmentally friendly and hygienic. It also features the ability to replace "O" - shaped rubber rings without stopping water supply.
3. Corrosion resistant, the inner and outer surfaces of the valve body are coated with epoxy resin, and the internal components are made of stainless steel and copper alloy to prevent rust and fluid corrosion. It can be directly used in industries such as domestic water supply, food and medicine.