The comparison between metal seated and resilient seated gate valves
Nowadays, there are two kinds of valve seat gate valves on the market, one is the resilient seated gate valves , and the other is the metal seated gate valves. And before the resilient seated gate valve was introduced to the market, gate valves with a metal seated wedge has been widely used. Advantages of the metal seated gate valves: 1.Withstand high temperatures; 2.Severe service conditions; 3.Excellent corrosion resistance; Advantages of the resilient seated gate valve: 1.Designed for zero leakage throughout valve life; 2.Low maintenance requirements Provides flexibility in design; The comparison between metal seated and resilient seated gate valves: About metal seated gate valves , the conical wedge design and angular sealing devices of a metal seated wedge require a depression in the valve bottom to ensure a tight closure. Herewith, sand and pebbles are embedded in the bore. The pipe system will never be completely free from impurities regardless of how thoroughly the pipe is f