DECREASING THE SURFACE ROUGHNESS OF THE SEATING SURFACES OF BALL VALVES

1 MUSIL Vaclav
Co-authors:
1 SADILEK Marek 1 CEP Robert 1 CEPOVA Lenka 1 KRATOCHVIL Jiri 1 KUSNIR Lukas
Institution:
1 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, vaclav.musil@vsb.cz
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
801-807
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
9 views / 2 downloads
Abstract

The article deals with the evaluation of the functional surfaces of the ball valve body. It deals with the finishing methods when machining parts of the ball valve assembly. Above all, it is good practice to achieve a reduced roughness of the machined seating surfaces and areas where a special sealing element will be used. From the offered variants of surface finish machining methods, emphasis is placed on turning technology, so called fine turning. Experimental machining is aimed to achieve the required surface roughness (parameter Ra less than 0.2μm) directly after the finishing operation.

Keywords: ball valves, roughness, finishing methods, surface finish, machining, cermet
Scroll to Top