Ball valve

A bellow 102 for use in a ball valve 101 has a metallic seat, fig 5 at an end of the bellow 102 for providing a contact surface with a ball of a ball valve 101; and a metallic body, fig 5 integral with the seat; wherein the metallic body has a longitudinally elastic property such that, when the bell...

Full description

Saved in:
Bibliographic Details
Main Authors ASBJøRN STRAND, KRISTIAN KARLSEN
Format Patent
LanguageEnglish
Published 18.11.2015
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
ENGINEERING ELEMENTS AND UNITS
FIXED CONSTRUCTIONS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:A bellow 102 for use in a ball valve 101 has a metallic seat, fig 5 at an end of the bellow 102 for providing a contact surface with a ball of a ball valve 101; and a metallic body, fig 5 integral with the seat; wherein the metallic body has a longitudinally elastic property such that, when the bellow is in use in a ball valve and the bellow is arranged within the housing of the ball valve so that it is always under longitudinal compression, substantially only the compression in the bellow causes the seat to apply a sealing force against the ball of the ball valve that maintains a mechanical seal between the seat and the ball valve. Multiple bellows may be present and a method of manufacturing a ball valve including the bellow is also claimed.
Bibliography:Application Number: GB20150008436