Ball valve of the improved type comprising an upstream seat and a downstream seat
Ball valve of an improved type comprising an upstream seat and a downstream seat. The valve has a body 10'' pierced with a channel 20'' for the flow of fluid and for the limited axial movements of a rotary spherical stopper C''. Composite assemblies B'' formin...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | Ball valve of an improved type comprising an upstream seat and a downstream seat. The valve has a body 10'' pierced with a channel 20'' for the flow of fluid and for the limited axial movements of a rotary spherical stopper C''. Composite assemblies B'' forming a seat, placed on either side of the stopper C'', comprise rings 104'', 106'' forming a seat, each having a curved configuration in contact with the stopper C'' and thrust towards C'' via frustoconical elastic washers 108'', 110'' interposed between each ring and a shoulder of the body 10''. The dimension of the shoulders 78'', 80'' allows the far walls 112'', 114'' of the counter-bore to delimit a bearing and abutment surface of a ring surface forming a seat. Application: valves with floating spherical stoppers.
CLAPET SPHERIQUE DE TYPE PERFECTIONNE COMPRENANT UN SIEGE D'AMONT ET UN SIEGE D'AVAL.LE CLAPET PRESENTE UN CORPS 10 PERCE D'UN CANAL 20 POUR L'ECOULEMENT D'UN FLUIDE ET POUR DES MOUVEMENTS AXIAUX LIMITES D'UN OBTURATEUR SPHERIQUE C ROTATIF. DES ENSEMBLES COMPOSITES B FORMANT SIEGE, PLACES DE PART ET D'AUTRE DE L'OBTURATEUR C, COMPORTENT DES BAGUES 104, 106 FORMANT SIEGE, PRESENTANT CHACUNE UNE CONFIGURATION CURVILIGNE EN CONTACT AVEC L'OBTURATEUR C ET POUSSEE VERS C PAR DES RONDELLES ELASTIQUES TRONCONIQUES 108, 110, INTERCALEES ENTRE CHAQUE BAGUE ET UN EPAULEMENT DU CORPS 10. LA DIMENSION DES EPAULEMENTS 78, 80 PERMET AUX PAROIS EXTREMES 112, 114 DE CONTRE-ALESAGE DE DELIMITER UNE SURFACE D'APPUI ET DE BUTEE D'UNE FACE DE BAGUE FORMANT SIEGE.APPLICATION : CLAPETS A OBTURATEURS SPHERIQUES FLOTTANTS. |
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