Didtek knife gate valve is mainly composed of body,knife,stem,seat and packing,its suitable for mud and fiber material and other medium,the blade type knife can cut off the fiber of the medium.

Knife gate valve entered China in the 1980s. In less than 20 years, its use range has expanded from the general field to a wider range of industries, from coal preparation, drainage, and slagging of mine power plants to city's sewage treatment has evolved, and from general industrial pipelines to specialized plumbing systems such as food, sanitation and medicine.