Gc100s angle diaphragm sludge discharge valve is a kind of angle diaphragm stop valve. It is usually installed at the bottom of sedimentation tank in sewage treatment plant to remove the sediment and dirt from the bottom of the tank. The inner part of the valve is nylon reinforced rubber diaphragm, and it is designed as angle structure, which is conducive to the smooth removal of dirt, convenient installation and long service life.