(주)동해

female screw structure

• 1. The inside of valve has the structure that a valve stem playing a role of ascending and descending the open/close disc is inserted to the inside of bonnet. The valve stem does not ascend even when the valve open.
• 2. It does not have a gland packing. It is proper to the fluid without sludges such as pure water, oil or gas.

male screw structure

• 1. The stem lifting up/down the disc inside the valve found outside the bonnet; able to check if the valve is open or closed by observing the stem because it rises when the valve is open
• 2. Good for water/sludge lines in gland packing structure

Double Floor Type Structure