1. It has a structure that a patented design of round soft seat is inserted (rubber cushion seat) to the position where an open/close disc inside the valve ascends and descends for improving the closeness. When the valve is shut off, the open/close disc clings together firstly to the soft seat and secondly to the valve metal seat by descending, which results to block the flow of fluid without leakage by double sealing.
2. By installing the product at lines of water, oil, gas or sludge mixture fluid which suffer stubborn difficulties of line operation due to pileup of fluid leavings and seat leakage in the lower part of valve, It can remedy the problem.
3. This is the only valve for fluid block which is possible to control the flux and is applicable to the important lines by its fire safety structure.
• AWWA Standards (AWWA C520 Knife Gate Valve)
• High-pressure Knife Gate Valve Standard (MSS SP-135)
• Knife Gate Valve For Waterworks (SPS-B KWWA 205-7418:2021)
• AWWA C509 Resilient-Seated Gate Valves For Water Supply Service
• AWWA C500 Metal-Seated Gate Valves For Water Supply Service