THE CHOICE OF MATERIAL FOR THE SEALING ELEMENT OF THE GATE VALVE ASSEMBLY

Abstract

The article is devoted to the choice of material for the sealing element of the gate assembly of gate valves. Two new composite materials have been proposed as a material for the sealing element of the valves. Where the following are selected as the matrix: butadiene-nitrile rubber of the brand SKN-26 and fluoroplast of the brand FT4. It is shown that both composite materials can be used to manufacture sealing elements for high-pressure valves. At the same time, samples from the composition with a fluoroplast matrix show the best resistance to chemical influences. It was also found that the factor of nanoparticles in the composite material contributes to the formation of a stable structure with increased physical and mechanical characteristics. Keywords: gate valve, sealing element, gate, synthetic butadiene-nitrile rubber mixture, composite material.