Lug butterfly valve supplier
      Lug butterfly valve features to high temperature, pressure range is higher, the valve nominal diameter large carbon steel valve body, valve plate seal with metal ring instead of the rubber ring. Large temperature valve welded steel plate manufacturing, mainly for high-temperature medium smoke duct and gas pipelines.
     Butterfly the following advantages:
     1 open and close easily and quickly, saving, fluid resistance, can often operate.
     2 simple structure, small size and light weight.
     3 can carry mud accumulation of fluid in the pipe mouth at least.
     4 low pressure, can achieve a good seal.
     5. Regulated performance.
     Lug butterfly valve butterfly valve defects are as follows:
     1. The use of pressure and operating temperature range is small.
     （2） poor sealing.
     Butterfly form of the structure can be divided into the bias plate, vertical plate, swash plate and leveraged. Press the seal can be divided into relatively sealed and seal type. Soft rubber ring seal type commonly used seal seal type commonly used metal ring seal.